# Klara, iPlum, RingEX vs 3CX Comparison

| | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Star Rating** | 4.6 out of 5 | 4.3 out of 5 | 4.2 out of 5 | 4.4 out of 5 | 
| **Total Reviews** | 112 | 203 | 1,364 | 546 | 
| **Largest Market Segment** | Small-Business (75.7% of reviews) | Small-Business (96.4% of reviews) | Small-Business (58.2% of reviews) | Mid-Market (54.9% of reviews) | 
| **Entry Level Price** | No pricing available | $8.99 | $30.00 1 User Per Month | Free 10 Users | 

---
## Top Pros & Cons

### Klara

Pros:
- Communication (23 reviews)
- Ease of Use (20 reviews)

Cons:
- Limited Features (6 reviews)
- Communication Issues (5 reviews)

### iPlum

Pros:
- Ease of Use (104 reviews)
- HIPAA Compliance (52 reviews)

Cons:
- Texting Issues (28 reviews)
- Call Issues (25 reviews)

### RingEX

Pros:
- Ease of Use (195 reviews)
- Customer Support (124 reviews)

Cons:
- Customer Service (49 reviews)
- Complex Processes (44 reviews)

### 3CX

Pros:
- Ease of Use (44 reviews)
- Reliability (31 reviews)

Cons:
- Complex Processes (11 reviews)
- Difficult Configuration (10 reviews)

---
## Ratings Comparison
| Rating | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
  | **Meets Requirements** | 9.2 (85 reviews) | 9.2 (186 reviews) | 8.8 (1114 reviews) | 8.9 (365 reviews) | 
  | **Ease of Use** | 9.2 (87 reviews) | 8.7 (188 reviews) | 8.6 (1130 reviews) | 9.0 (373 reviews) | 
  | **Ease of Setup** | 9.3 (58 reviews) | 7.9 (179 reviews) | 8.2 (713 reviews) | 8.8 (253 reviews) | 
  | **Ease of Admin** | 9.5 (34 reviews) | 8.6 (46 reviews) | 8.3 (632 reviews) | 9.0 (236 reviews) | 
  | **Quality of Support** | 9.0 (79 reviews) | 8.4 (152 reviews) | 8.0 (1016 reviews) | 7.9 (332 reviews) | 
  | **Has the product been a good partner in doing business?** | 9.0 (33 reviews) | 8.2 (47 reviews) | 8.3 (621 reviews) | 8.6 (226 reviews) | 
  | **Product Direction (% positive)** | 9.0 (83 reviews) | 8.6 (187 reviews) | 7.9 (1087 reviews) | 8.4 (365 reviews) | 

---
## Pricing

### Klara

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### iPlum

#### Entry-Level Pricing

Plan: Standard

Price: $8.99

Description: For mobile app calling, texting, voicemail, auto-text reply, business hours, phone tree and extensions.

Key Features:
- Get US or Canada Local Number
- Calling & Multimedia Texting
- Voicemail

[Browse all 2 editions](https://www.g2.com/products/iplum/pricing)

#### Free Trial

No

### RingEX

#### Entry-Level Pricing

Plan: Core

Price: $30.00 1 User Per Month

Description: A reliable, core phone system to get your business up and running

Key Features:
- Unlimited domestic calling
- SMS and MMS
- IVR

[Browse all 3 editions](https://www.g2.com/products/ringex/pricing)

#### Free Trial

Yes

### 3CX

#### Entry-Level Pricing

Plan: 3CX SMB

Price: Free 10 Users

Description: Free for up to 10 users.

Key Features:
- Next-gen phone system
- Bring your own SIP Trunk
- WFH: remote-enable teams

[Browse all 3 editions](https://www.g2.com/products/3cx/pricing)

#### Free Trial

Yes

---
## Features Comparison By Category

### Online Fax

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.7/10 | 183 |
| **3CX** | N/A | N/A |

#### Documents

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Editing** | Not enough data | Not enough data | Feature Not Available | Not enough data | 
| **Document Signature ** | Not enough data | Not enough data | 7.3 (149 reviews) | Not enough data | 
| **Storage** | Not enough data | Not enough data | 8.1 (157 reviews) | Not enough data | 

#### Agentic AI - Online Fax

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 8.5 (11 reviews) | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 8.6 (11 reviews) | Not enough data | 

#### Sending

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Fax Number** | Not enough data | Not enough data | 9.1 (173 reviews) | Not enough data | 
| **Existing Numbers** | Not enough data | Not enough data | 9.1 (170 reviews) | Not enough data | 
| **Cross-Platform Sending** | Not enough data | Not enough data | 8.9 (158 reviews) | Not enough data | 
| **Unlimited Sending** | Not enough data | Not enough data | 9.2 (161 reviews) | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 8.9 (165 reviews) | Not enough data | 
| **Alerts** | Not enough data | Not enough data | 9.1 (165 reviews) | Not enough data | 

### Webinar

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.3/10 | 106 |
| **3CX** | N/A | N/A |

#### Host Tools

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Branding** | Not enough data | Not enough data | 8.5 (76 reviews) | Not enough data | 
| **Role-based Access** | Not enough data | Not enough data | 8.7 (81 reviews) | Not enough data | 
| **Recording** | Not enough data | Not enough data | 9.0 (91 reviews) | Not enough data | 

#### Attendee Tools

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Registration** | Not enough data | Not enough data | 8.7 (85 reviews) | Not enough data | 
| **Attendee Live Chat** | Not enough data | Not enough data | 8.9 (85 reviews) | Not enough data | 
| **Polls and Surveys** | Not enough data | Not enough data | 8.1 (68 reviews) | Not enough data | 

#### Post-Event Tools

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Event Analytics** | Not enough data | Not enough data | 8.5 (65 reviews) | Not enough data | 
| **Attendee Reports** | Not enough data | Not enough data | 8.3 (68 reviews) | Not enough data | 

#### Integrations

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Social Media Integration** | Not enough data | Not enough data | 8.1 (59 reviews) | Not enough data | 
| **Software Integrations** | Not enough data | Not enough data | 8.4 (66 reviews) | Not enough data | 

#### Agentic AI - Webinar

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 7.7 (8 reviews) | Not enough data | 
| **Multi-step Planning** | Not enough data | Not enough data | 7.7 (8 reviews) | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 7.5 (8 reviews) | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 8.1 (8 reviews) | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 8.1 (8 reviews) | Not enough data | 

### HIPAA Compliant Messaging

| Product | Score | Reviews |
|---|---|---|
| **Klara** | 9.4/10 | 59 |
| **iPlum** | 9.0/10 | 126 |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Platform

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **User Authorization - HIPAA Compliant Messaging** | 9.4 (55 reviews) | 9.3 (119 reviews) | Not enough data | Not enough data | 
| **Compliant Texting - HIPAA Compliant Messaging** | 9.5 (55 reviews) | 9.2 (123 reviews) | Not enough data | Not enough data | 
| **Compliant Emailing - HIPAA Compliant Messaging** | Feature Not Available | 8.5 (111 reviews) | Not enough data | Not enough data | 
| **Clinical Communication - HIPAA Compliance** | 9.3 (54 reviews) | 9.1 (113 reviews) | Not enough data | Not enough data | 
| **HIPAA Compliance - HIPAA Compliant Messaging** | 9.5 (55 reviews) | 9.3 (121 reviews) | Not enough data | Not enough data | 
| **Operating Systems - HIPAA Compliant Messaging** | 9.4 (52 reviews) | 9.0 (115 reviews) | Not enough data | Not enough data | 
| **Message Lifespan - HIPAA Compliant Messaging** | 9.4 (52 reviews) | 9.0 (111 reviews) | Not enough data | Not enough data | 
| **Workflow Enhancement - HIPAA Compliant Messaging** | 9.3 (55 reviews) | 8.9 (114 reviews) | Not enough data | Not enough data | 

### Contact Center

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | N/A | N/A |
| **3CX** | 8.2/10 | 303 |

#### Channels

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Voice** | Not enough data | Not enough data | Not enough data | 9.4 (142 reviews) ✓ Verified | 
| **Social** | Not enough data | Not enough data | Not enough data | Feature Not Available | 
| **Web Chat** | Not enough data | Not enough data | Not enough data | 8.6 (94 reviews) ✓ Verified | 
| **Mobile SMS** | Not enough data | Not enough data | Not enough data | 7.3 (71 reviews) | 
| **Email** | Not enough data | Not enough data | Not enough data | Feature Not Available | 

#### Generative AI

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **AI Text-to-Speech** | Not enough data | Not enough data | Not enough data | 6.9 (23 reviews) | 

#### Functions

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Session Routing** | Not enough data | Not enough data | Not enough data | 8.9 (181 reviews) ✓ Verified | 
| **Session Queuing** | Not enough data | Not enough data | Not enough data | 8.9 (185 reviews) ✓ Verified | 
| **Concurrent Calling** | Not enough data | Not enough data | Not enough data | 8.9 (184 reviews) ✓ Verified | 
| **Speech Analytics** | Not enough data | Not enough data | Not enough data | Feature Not Available | 
| **Auto Dialer** | Not enough data | Not enough data | Not enough data | 8.2 (93 reviews) | 
| **IVR** | Not enough data | Not enough data | Not enough data | 9.1 (117 reviews) | 
| **Inbound Screen Pop** | Not enough data | Not enough data | Not enough data | 8.8 (98 reviews) | 
| **Persistent Data** | Not enough data | Not enough data | Not enough data | 8.4 (95 reviews) ✓ Verified | 

#### Agentic AI - Contact Center

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | 6.3 (13 reviews) | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | 7.0 (18 reviews) | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | 6.9 (12 reviews) | 
| **Proactive Assistance** | Not enough data | Not enough data | Not enough data | 6.9 (12 reviews) | 

#### Administrative

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Session Summary Notes** | Not enough data | Not enough data | Not enough data | 8.3 (149 reviews) ✓ Verified | 
| **Administrator Access** | Not enough data | Not enough data | Not enough data | 9.0 (179 reviews) ✓ Verified | 
| **Reporting & Dashboards** | Not enough data | Not enough data | Not enough data | 8.4 (185 reviews) ✓ Verified | 
| **Session Recording** | Not enough data | Not enough data | Not enough data | 9.0 (114 reviews) | 
| **Agent Scheduling and Assignment** | Not enough data | Not enough data | Not enough data | 8.3 (103 reviews) ✓ Verified | 

### Patient Intake

| Product | Score | Reviews |
|---|---|---|
| **Klara** | 9.2/10 | 25 |
| **iPlum** | N/A | N/A |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Patient Convenience 

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Tablets and Kiosks** | 9.3 (25 reviews) | Not enough data | Not enough data | Not enough data | 
| **Payment Collection** | 9.1 (24 reviews) | Not enough data | Not enough data | Not enough data | 
| **Form Workflow** | 9.6 (23 reviews) | Not enough data | Not enough data | Not enough data | 
| **Patient Check-in** | 9.6 (23 reviews) | Not enough data | Not enough data | Not enough data | 
| **Mobile Patient Intake** | 9.7 (23 reviews) | Not enough data | Not enough data | Not enough data | 

#### Administration 

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Patient Data Transfer** | 9.3 (23 reviews) | Not enough data | Not enough data | Not enough data | 
| **HIPAA Compliance** | 9.4 (24 reviews) | Not enough data | Not enough data | Not enough data | 
| **Insurance Credentialing** | 8.6 (23 reviews) | Not enough data | Not enough data | Not enough data | 
| **ID Verification** | 8.6 (23 reviews) | Not enough data | Not enough data | Not enough data | 
| **Appointment Scheduler Integration** | 8.7 (22 reviews) | Not enough data | Not enough data | Not enough data | 
| **E-Signature** | 9.0 (22 reviews) | Not enough data | Not enough data | Not enough data | 

### Video Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.9/10 | 300 |
| **3CX** | 9.0/10 | 144 |

#### Collaboration Tools

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Screen Sharing** | Not enough data | Not enough data | 9.1 (254 reviews) | 8.8 (68 reviews) ✓ Verified | 
| **Presentations** | Not enough data | Not enough data | 9.1 (141 reviews) | 9.1 (37 reviews) ✓ Verified | 
| **Whiteboarding** | Not enough data | Not enough data | 8.6 (116 reviews) | 9.0 (33 reviews) | 
| **Live Chat** | Not enough data | Not enough data | 8.9 (140 reviews) | 9.2 (38 reviews) ✓ Verified | 
| **Hand Raising** | Not enough data | Not enough data | 9.1 (122 reviews) | 8.5 (34 reviews) ✓ Verified | 

#### Meeting Coordination

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Scheduling** | Not enough data | Not enough data | 8.8 (243 reviews) | 8.4 (71 reviews) ✓ Verified | 
| **Recording** | Not enough data | Not enough data | 9.1 (235 reviews) | 9.1 (67 reviews) ✓ Verified | 
| **Participant Permissions** | Not enough data | Not enough data | 8.9 (223 reviews) | 9.2 (69 reviews) ✓ Verified | 
| **One-Click Join** | Not enough data | Not enough data | 9.0 (145 reviews) | 8.9 (41 reviews) ✓ Verified | 

#### Software Type

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Mobile** | Not enough data | Not enough data | 9.0 (245 reviews) | 9.0 (82 reviews) ✓ Verified | 
| **Browser Application** | Not enough data | Not enough data | 9.0 (143 reviews) | 9.3 (45 reviews) ✓ Verified | 
| **Desktop Application** | Not enough data | Not enough data | 9.2 (161 reviews) | 9.2 (43 reviews) ✓ Verified | 

#### Agentic AI - Video Conferencing

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 8.3 (13 reviews) | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 8.5 (12 reviews) | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 8.3 (12 reviews) | Not enough data | 

### Patient Engagement

| Product | Score | Reviews |
|---|---|---|
| **Klara** | 8.9/10 | 75 |
| **iPlum** | N/A | N/A |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Patient-Centered Functions

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Online Presence Management** | 9.1 (63 reviews) | Not enough data | Not enough data | Not enough data | 
| **Patient Feedback Management** | 9.1 (62 reviews) | Not enough data | Not enough data | Not enough data | 
| **Patient Portal** | 8.1 (19 reviews) | Not enough data | Not enough data | Not enough data | 
| **Patient Communications** | 9.3 (58 reviews) | Not enough data | Not enough data | Not enough data | 
| **Integration with Wearables** | Feature Not Available | Not enough data | Not enough data | Not enough data | 

#### Operations

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Workflow Management** | 9.2 (70 reviews) | Not enough data | Not enough data | Not enough data | 
| **Interoperability** | 9.0 (65 reviews) | Not enough data | Not enough data | Not enough data | 
| **Digital Intake Forms** | 8.9 (66 reviews) | Not enough data | Not enough data | Not enough data | 
| **Engagement Measuring** | 9.2 (64 reviews) | Not enough data | Not enough data | Not enough data | 
| **Patient Satisfaction Management** | 9.0 (56 reviews) | Not enough data | Not enough data | Not enough data | 
| **EHR Integration** | 8.9 (52 reviews) | Not enough data | Not enough data | Not enough data | 
| **IPC Systems Integration** | Feature Not Available | Not enough data | Not enough data | Not enough data | 

#### Generative AI

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **AI Text Summarization** | 8.6 (16 reviews) | Not enough data | Not enough data | Not enough data | 

### Telemedicine

| Product | Score | Reviews |
|---|---|---|
| **Klara** | 9.4/10 | 22 |
| **iPlum** | 8.5/10 | 24 |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Technology

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Telecommunications** | 9.5 (22 reviews) | 9.4 (24 reviews) | Not enough data | Not enough data | 
| **Low Bandwidth Support** | 9.8 (20 reviews) | 8.9 (23 reviews) | Not enough data | Not enough data | 
| **EHR Integration** | 8.9 (20 reviews) | 7.7 (21 reviews) | Not enough data | Not enough data | 

#### Administration

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Practice Branding** | 8.9 (20 reviews) | 7.9 (21 reviews) | Not enough data | Not enough data | 
| **Practice Specific** | Feature Not Available | 8.0 (22 reviews) | Not enough data | Not enough data | 
| **Charting And Documentation** | Feature Not Available | 7.6 (21 reviews) | Not enough data | Not enough data | 

#### Compliance

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **HIPAA Compliance** | 9.6 (22 reviews) | 9.3 (23 reviews) | Not enough data | Not enough data | 
| **State Regulation Compliance** | 9.7 (19 reviews) | 9.4 (22 reviews) | Not enough data | Not enough data | 

### Call Center Infrastructure (CCI)

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.8/10 | 256 |
| **3CX** | 8.7/10 | 54 |

#### Platform

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Omnichannel** | Not enough data | Not enough data | Feature Not Available | 7.7 (40 reviews) | 
| **Mobile Access** | Not enough data | Not enough data | 9.0 (238 reviews) | 8.9 (48 reviews) | 
| **Queue Management** | Not enough data | Not enough data | 8.7 (223 reviews) | 9.1 (46 reviews) | 
| **Call Routing** | Not enough data | Not enough data | 9.1 (233 reviews) | 8.8 (49 reviews) | 
| **Call Back** | Not enough data | Not enough data | 8.7 (220 reviews) | 8.9 (47 reviews) | 
| **IVR** | Not enough data | Not enough data | 8.5 (213 reviews) | 9.2 (42 reviews) | 
| **Automatic Call Distribution** | Not enough data | Not enough data | 8.7 (219 reviews) | 9.1 (46 reviews) | 

#### Generative AI

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **AI Text-to-Speech** | Not enough data | Not enough data | Feature Not Available | 6.8 (14 reviews) | 

#### Workforce Management

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Call Monitoring** | Not enough data | Not enough data | 8.8 (222 reviews) | 9.2 (48 reviews) | 
| **Performance Evaluation** | Not enough data | Not enough data | 8.6 (216 reviews) | 8.7 (47 reviews) | 

#### Call Center Infrastructure (CCI)

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 8.9 (22 reviews) | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 8.9 (22 reviews) | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 9.1 (22 reviews) | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 8.9 (22 reviews) | Not enough data | 

#### Administrative

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Call Recording** | Not enough data | Not enough data | 8.8 (226 reviews) | 9.1 (49 reviews) | 
| **Reporting & Dashboards** | Not enough data | Not enough data | 8.6 (223 reviews) | 8.5 (48 reviews) | 

### Live Chat

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | N/A | N/A |
| **3CX** | 8.5/10 | 57 |

#### Generative AI

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **AI Text Generation** | Not enough data | Not enough data | Not enough data | 6.3 (10 reviews) | 
| **AI Text Summarization** | Not enough data | Not enough data | Not enough data | 7.2 (9 reviews) | 
| **AI Text-to-Speech** | Not enough data | Not enough data | Not enough data | 7.4 (9 reviews) | 

#### Communication

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Pop-up Chat** | Not enough data | Not enough data | Not enough data | 9.3 (37 reviews) | 
| **Notifications** | Not enough data | Not enough data | Not enough data | 9.3 (38 reviews) | 
| **Targeted Emails** | Not enough data | Not enough data | Not enough data | Feature Not Available | 
| **In-App Messaging** | Not enough data | Not enough data | Not enough data | 9.3 (37 reviews) | 
| **Co-Browsing** | Not enough data | Not enough data | Not enough data | Feature Not Available | 

####  Internal Use

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Customization ** | Not enough data | Not enough data | Not enough data | 8.9 (43 reviews) | 
| **Conversation Archiving** | Not enough data | Not enough data | Not enough data | 8.9 (37 reviews) | 
| **Lead Development** | Not enough data | Not enough data | Not enough data | Feature Not Available | 
| **Knowledge Base** | Not enough data | Not enough data | Not enough data | Feature Not Available | 
| **Team Inbox ** | Not enough data | Not enough data | Not enough data | 8.9 (36 reviews) | 
| **Customer Profiles** | Not enough data | Not enough data | Not enough data | 9.0 (34 reviews) | 

### Cloud PBX Platforms

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.8/10 | 64 |
| **3CX** | 8.7/10 | 27 |

#### Basic Communication - Cloud PBX

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Call Management** | Not enough data | Not enough data | 8.9 (59 reviews) | 9.7 (24 reviews) | 
| **Communication Management** | Not enough data | Not enough data | 8.9 (58 reviews) | 8.9 (21 reviews) | 
| **Scalability** | Not enough data | Not enough data | 9.1 (56 reviews) | 9.7 (21 reviews) | 
| **Integrations** | Not enough data | Not enough data | 8.3 (57 reviews) | 8.3 (22 reviews) | 
| **Mobile Accessibility** | Not enough data | Not enough data | 9.1 (58 reviews) | 9.6 (23 reviews) | 
| **Accessibility** | Not enough data | Not enough data | 8.8 (55 reviews) | 9.8 (23 reviews) | 

#### Advanced Features - Cloud PBX

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Security and Compliance** | Not enough data | Not enough data | 8.7 (52 reviews) | 8.5 (20 reviews) | 
| **Analytics and Reporting** | Not enough data | Not enough data | 8.5 (55 reviews) | 7.6 (21 reviews) | 
| **Support and Reliability** | Not enough data | Not enough data | 8.6 (54 reviews) | 8.0 (22 reviews) | 
| **Automated attendant** | Not enough data | Not enough data | 8.9 (54 reviews) | 7.0 (21 reviews) | 

### VoIP Providers

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | 6.9/10 | 104 |
| **RingEX** | 8.4/10 | 579 |
| **3CX** | 8.5/10 | 280 |

#### Platform Basics - VoIP Providers

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **PBX systems, VoIP Softphone** | Not enough data | 7.4 (65 reviews) | 8.5 (96 reviews) | 9.3 (20 reviews) | 
| **Call Management** | Not enough data | 8.0 (68 reviews) | 8.7 (117 reviews) | 9.6 (19 reviews) | 
| **Network monitoring** | Not enough data | 7.5 (63 reviews) | 8.4 (87 reviews) | 8.4 (19 reviews) | 
| **Integrations** | Not enough data | 6.8 (65 reviews) | 8.0 (104 reviews) | 9.0 (19 reviews) | 
| **Virtual PBX** | Not enough data | 6.5 (62 reviews) | 8.0 (82 reviews) | 9.1 (19 reviews) | 
| **SIP trunking services** | Not enough data | 6.5 (62 reviews) | 8.1 (80 reviews) | 9.3 (19 reviews) | 

#### Basic Communication

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Phone Calls** | Not enough data | 8.9 (95 reviews) | 9.1 (535 reviews) ✓ Verified | 9.5 (193 reviews) ✓ Verified | 
| **Video Calls** | Not enough data | Feature Not Available | 8.3 (399 reviews) ✓ Verified | 8.4 (133 reviews) ✓ Verified | 
| **Instant Messaging** | Not enough data | 8.9 (95 reviews) | 8.7 (435 reviews) ✓ Verified | 8.3 (132 reviews) ✓ Verified | 
| **Screen Sharing** | Not enough data | 5.9 (77 reviews) | 8.2 (362 reviews) ✓ Verified | 8.2 (118 reviews) ✓ Verified | 
| **Conference Calls** | Not enough data | 6.3 (72 reviews) | 8.6 (429 reviews) ✓ Verified | 8.8 (174 reviews) ✓ Verified | 
| **Desk-to-Desk Calls** | Not enough data | 6.6 (74 reviews) | 9.0 (439 reviews) ✓ Verified | 9.4 (186 reviews) ✓ Verified | 

#### Agentic AI - VoIP Providers

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | 6.3 (50 reviews) | 7.9 (52 reviews) | 6.1 (9 reviews) | 
| **Cross-system Integration** | Not enough data | 6.5 (50 reviews) | 8.1 (54 reviews) | 7.7 (8 reviews) | 
| **Adaptive Learning** | Not enough data | 6.4 (51 reviews) | 8.0 (52 reviews) | 6.9 (8 reviews) | 
| **Proactive Assistance** | Not enough data | 6.4 (49 reviews) | 8.0 (51 reviews) | 6.9 (8 reviews) | 

#### Access

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Software Pairing** | Not enough data | 6.2 (69 reviews) | 8.2 (380 reviews) ✓ Verified | 8.4 (117 reviews) ✓ Verified | 
| **Browser Extension** | Not enough data | Feature Not Available | 8.4 (394 reviews) ✓ Verified | 8.5 (154 reviews) ✓ Verified | 
| **Individual Download** | Not enough data | 7.1 (77 reviews) | 8.6 (426 reviews) | 8.4 (164 reviews) ✓ Verified | 

#### Advanced Features

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Hold Music** | Not enough data | 5.7 (70 reviews) | 8.3 (446 reviews) | 8.5 (173 reviews) ✓ Verified | 
| **Automated Attendants** | Not enough data | 6.4 (78 reviews) | 8.4 (406 reviews) ✓ Verified | 9.0 (161 reviews) ✓ Verified | 
| **VOiP Number** | Not enough data | 8.4 (88 reviews) | 9.0 (472 reviews) ✓ Verified | Feature Not Available | 

### Google Workspace Communication Tools

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Agentic AI - Google Workspace Communication Tools

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | Not enough data | 

### Outbound Call Tracking

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | 7.8/10 | 27 |
| **RingEX** | N/A | N/A |
| **3CX** | N/A | N/A |

#### Agentic AI - Outbound Call Tracking

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | 7.8 (9 reviews) | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | 7.6 (9 reviews) | Not enough data | Not enough data | 

#### Calling

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Record Calls** | Not enough data | 7.5 (26 reviews) | Not enough data | Not enough data | 
| **Generate Location** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Call Types** | Not enough data | 8.6 (27 reviews) | Not enough data | Not enough data | 
| **Click-to-Call** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Auto Dialer** | Not enough data | 8.3 (11 reviews) | Not enough data | Not enough data | 

#### Contacts

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Personalization** | Not enough data | 8.2 (26 reviews) | Not enough data | Not enough data | 
| **Information Locater** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Record Prospect Data** | Not enough data | 7.5 (25 reviews) | Not enough data | Not enough data | 

#### Insights

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Notes** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Daily Summary** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Automated Voicemails** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Automated Emails** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Sorts Prospects** | Not enough data | Feature Not Available | Not enough data | Not enough data | 
| **Automated Note Taking** | Not enough data | 7.2 (10 reviews) | Not enough data | Not enough data | 

### UCaaS Platforms

| Product | Score | Reviews |
|---|---|---|
| **Klara** | N/A | N/A |
| **iPlum** | N/A | N/A |
| **RingEX** | 8.5/10 | 71 |
| **3CX** | 9.2/10 | 74 |

#### Agentic AI - UCaaS Platforms

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | Not enough data | Not enough data | 

#### Extensions

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Tenancy Flexibility** | Not enough data | Not enough data | Feature Not Available | Feature Not Available | 
| **Native VoIP** | Not enough data | Not enough data | 8.7 (53 reviews) ✓ Verified | 9.7 (24 reviews) ✓ Verified | 
| **CCaaS Option** | Not enough data | Not enough data | 8.2 (18 reviews) | 9.0 (22 reviews) ✓ Verified | 

#### Features

| Feature | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Voicemail to Email** | Not enough data | Not enough data | 8.8 (57 reviews) ✓ Verified | 9.4 (24 reviews) ✓ Verified | 
| **Voicemail to SMS** | Not enough data | Not enough data | Feature Not Available | Feature Not Available | 
| **File Sharing** | Not enough data | Not enough data | 8.6 (53 reviews) ✓ Verified | 8.7 (18 reviews) ✓ Verified | 
| **Voice Conferencing** | Not enough data | Not enough data | 8.5 (52 reviews) ✓ Verified | 9.4 (28 reviews) ✓ Verified | 
| **Video Conferencing** | Not enough data | Not enough data | 8.6 (53 reviews) ✓ Verified | 8.6 (27 reviews) ✓ Verified | 
| **Conference Transcripts** | Not enough data | Not enough data | 8.2 (49 reviews) | Feature Not Available | 

---
## Categories

**Unique to Klara (5):** [Patient Intake Software](https://www.g2.com/categories/patient-intake), [Patient Engagement Software](https://www.g2.com/categories/patient-engagement), [HIPAA Compliant Messaging Software](https://www.g2.com/categories/hipaa-compliant-messaging), [Telemedicine Software](https://www.g2.com/categories/telemedicine), [Patient Scheduling Software](https://www.g2.com/categories/patient-scheduling)

**Unique to iPlum (5):** [Telemedicine Software](https://www.g2.com/categories/telemedicine), [Google Workspace Communication Tools ](https://www.g2.com/categories/google-workspace-communication-tools), [Outbound Call Tracking Software](https://www.g2.com/categories/outbound-call-tracking), [VoIP Providers](https://www.g2.com/categories/voip-providers), [HIPAA Compliant Messaging Software](https://www.g2.com/categories/hipaa-compliant-messaging)

**Unique to RingEX (7):** [UCaaS Platforms](https://www.g2.com/categories/ucaas-platforms), [Online Fax Software](https://www.g2.com/categories/online-fax), [Webinar Platforms](https://www.g2.com/categories/webinar), [VoIP Providers](https://www.g2.com/categories/voip-providers), [Call Center Infrastructure (CCI) Software](https://www.g2.com/categories/call-center-infrastructure-cci), [Video Conferencing Software](https://www.g2.com/categories/video-conferencing), [Cloud PBX Platforms Software](https://www.g2.com/categories/cloud-pbx-platforms)

**Unique to 3CX (7):** [UCaaS Platforms](https://www.g2.com/categories/ucaas-platforms), [Live Chat Software](https://www.g2.com/categories/live-chat), [VoIP Providers](https://www.g2.com/categories/voip-providers), [Contact Center Software](https://www.g2.com/categories/contact-center), [Video Conferencing Software](https://www.g2.com/categories/video-conferencing), [Call Center Infrastructure (CCI) Software](https://www.g2.com/categories/call-center-infrastructure-cci), [Cloud PBX Platforms Software](https://www.g2.com/categories/cloud-pbx-platforms)


---
## Reviewer Demographics

### By Company Size

| Segment | Klara | iPlum | RingEX | 3CX | 
|---|---|---|---|---|
| **Small-Business** | 75.7% | 96.4% | 58.2% | 36.2% | 
| **Mid-Market** | 20.4% | 1.5% | 35.1% | 54.9% | 
| **Enterprise** | 3.9% | 2.1% | 6.7% | 8.9% | 

### By Industry

#### Klara

- **Medical Practice:** 43.7%
- **Hospital & Health Care:** 35.0%
- **Health, Wellness and Fitness:** 7.8%
- **Mental Health Care:** 2.9%
- **Alternative Medicine:** 2.9%
- **Plastics:** 1.9%
- **Media Production:** 1.0%
- **Insurance:** 1.0%
- **Human Resources:** 1.0%
- **Cosmetics:** 1.0%
- **Other:** 1.9%

#### iPlum

- **Mental Health Care:** 53.4%
- **Health, Wellness and Fitness:** 11.4%
- **Hospital & Health Care:** 10.9%
- **Individual & Family Services:** 3.6%
- **Consumer Services:** 2.1%
- **Medical Practice:** 2.1%
- **Marketing and Advertising:** 2.1%
- **Accounting:** 1.6%
- **Financial Services:** 1.6%
- **Consulting:** 1.6%
- **Other:** 9.8%

#### RingEX

- **Computer Software:** 9.3%
- **Information Technology and Services:** 5.2%
- **Insurance:** 5.2%
- **Financial Services:** 4.9%
- **Staffing and Recruiting:** 4.8%
- **Marketing and Advertising:** 4.3%
- **Hospital & Health Care:** 4.1%
- **Real Estate:** 3.5%
- **Health, Wellness and Fitness:** 3.5%
- **Construction:** 3.5%
- **Other:** 51.8%

#### 3CX

- **Information Technology and Services:** 10.4%
- **Hospital & Health Care:** 5.4%
- **Education Management:** 5.2%
- **Telecommunications:** 4.9%
- **Construction:** 4.2%
- **Computer Software:** 4.0%
- **Financial Services:** 4.0%
- **Computer & Network Security:** 3.8%
- **E-Learning:** 3.5%
- **Insurance:** 3.1%
- **Other:** 51.5%

---
## Alternatives

### Alternatives to Klara

- [OhMD](https://www.g2.com/products/ohmd/reviews) — 4.8/5 stars (170 reviews)
- [Artera](https://www.g2.com/products/artera/reviews) — 4.8/5 stars (88 reviews)
- [Weave](https://www.g2.com/products/weave-weave/reviews) — 4.6/5 stars (433 reviews)
- [Luma Health](https://www.g2.com/products/luma-health/reviews) — 4.8/5 stars (84 reviews)
- [Phreesia](https://www.g2.com/products/phreesia/reviews) — 3.9/5 stars (45 reviews)
- [Spruce Health](https://www.g2.com/products/spruce-health/reviews) — 4.7/5 stars (338 reviews)
- [SimplePractice](https://www.g2.com/products/simplepractice/reviews) — 4.1/5 stars (127 reviews)
- [Paubox](https://www.g2.com/products/paubox/reviews) — 4.9/5 stars (566 reviews)
- [Carepatron](https://www.g2.com/products/carepatron/reviews) — 4.5/5 stars (527 reviews)
- [Birdeye](https://www.g2.com/products/birdeye/reviews) — 4.7/5 stars (4060 reviews)

### Alternatives to iPlum

- [Quo](https://www.g2.com/products/quo-quo/reviews) — 4.7/5 stars (3374 reviews)
- [Spruce Health](https://www.g2.com/products/spruce-health/reviews) — 4.7/5 stars (338 reviews)
- [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4165 reviews)
- [Aircall](https://www.g2.com/products/aircall/reviews) — 4.4/5 stars (1585 reviews)
- [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3566 reviews)
- [Grasshopper](https://www.g2.com/products/grasshopper/reviews) — 3.9/5 stars (159 reviews)
- [MightyCall](https://www.g2.com/products/mightycall/reviews) — 4.4/5 stars (331 reviews)
- [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1414 reviews)
- [JustCall](https://www.g2.com/products/saas-labs-justcall/reviews) — 4.3/5 stars (2385 reviews)
- [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) — 4.3/5 stars (501 reviews)

### Alternatives to RingEX

- [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3566 reviews)
- [8x8 Work](https://www.g2.com/products/8x8-work/reviews) — 4.2/5 stars (926 reviews)
- [Webex Calling](https://www.g2.com/products/webex-calling/reviews) — 4.5/5 stars (633 reviews)
- [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4165 reviews)
- [CloudTalk](https://www.g2.com/products/cloudtalk/reviews) — 4.4/5 stars (1839 reviews)
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1547 reviews)
- [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1414 reviews)
- [Intermedia Unite](https://www.g2.com/products/intermedia-unite/reviews) — 4.5/5 stars (520 reviews)
- [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) — 4.3/5 stars (501 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56388 reviews)

### Alternatives to 3CX

- [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3566 reviews)
- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1547 reviews)
- [Webex Calling](https://www.g2.com/products/webex-calling/reviews) — 4.5/5 stars (633 reviews)
- [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4165 reviews)
- [Aircall](https://www.g2.com/products/aircall/reviews) — 4.4/5 stars (1585 reviews)
- [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1414 reviews)
- [Yeastar P-Series PBX System](https://www.g2.com/products/yeastar-p-series-pbx-system/reviews) — 4.8/5 stars (81 reviews)
- [Vonage Business Communications](https://www.g2.com/products/vonage-business-communications/reviews) — 4.3/5 stars (501 reviews)
- [Mitel](https://www.g2.com/products/mitel/reviews) — 3.8/5 stars (235 reviews)
- [Five9 Intelligent Cloud Contact Center Platform](https://www.g2.com/products/five9-intelligent-cloud-contact-center-platform/reviews) — 4.1/5 stars (611 reviews)

---
## Top Discussions

### Klara

- Title: [What does Klara do?](https://www.g2.com/discussions/what-does-klara-do) — 1 comment
  > **Top comment:** "I used them for communicating with my patients and sending customizable intake forms (via jotforms).  Evidently they also do much more.  They are also wicked..."
- Title: [What is Klara app?](https://www.g2.com/discussions/what-is-klara-app) — 1 comment *(includes official response)*
  > **Top comment:** "Comment deleted by user."
- Title: [How much does Klara cost?](https://www.g2.com/discussions/how-much-does-klara-cost) — 1 comment
  > **Top comment:** "Too much for a solo practice.  There are less expensive options that do the same thing. "

### iPlum

No discussions available for this product.

### RingEX

- Title: [What’s involved in setting up my RingCentral Office business phone system?](https://www.g2.com/discussions/ringcentral-office-setup) — 2 comments, 1 upvote *(includes official response)*
  > **Top comment:** "There is no PBX hardware to install or technical contractors needed for an on-site setup to start using your phone system. Once you’ve purchased RingCentral..."
- Title: [Is RingCentral good?](https://www.g2.com/discussions/is-ringcentral-good) — 1 comment
  > **Top comment:** "We love RingCentral! It's great that it allows us to call from a main office phone number and provides each user their own work cell/direct number from which..."
- Title: [Why don't you make it more user-friendly?](https://www.g2.com/discussions/why-don-t-you-make-it-more-user-friendly) — 1 comment, 1 upvote
  > **Top comment:** "Brianna, thanks for this feedback. Can you tell us more about what you'd like to customize? If we can't make recommendations, we would love to have you visit..."
- Title: [What are the benefits of RingCentral Office?](https://www.g2.com/discussions/ringcentral-advantage) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "Set up your phone system to work the way you do
- Connect your office, remote employees and mobile users under one phone system.
- Easily support multiple..."
- Title: [What is RingCentral Office?](https://www.g2.com/discussions/ringcentral-office) — 1 comment, 1 upvote *(includes official response)*
  > **Top comment:** "RingCentral Office is a cloud-based business communications system with enterprise-grade voice, fax, text, online meetings, conferencing, and..."

### 3CX

- Title: [How do I integrate 3CX to my CRM](https://www.g2.com/discussions/how-do-i-integrate-3cx-to-my-crm) — 2 comments, 1 upvote
  > **Top comment:** "In order to do this there are 2 things you need to do:
1) Make sure you are using either the 3CX WebClient or 3CX Desktop App to make calls
2) Use either..."
- Title: [Getting STUN setup for remote employees has been a challenge during this COVID-19 pandemic.](https://www.g2.com/discussions/25993-getting-stun-setup-for-remote-employees-has-been-a-challenge-during-this-covid-19-pandemic) — 2 comments, 1 upvote
  > **Top comment:** "Hello Tim,

Thank you for your question. As this is a technical issue, I would advise you to open a support ticket with our team, which is available for..."
- Title: [What is 3CX used for?](https://www.g2.com/discussions/what-is-3cx-used-for) — 1 comment, 1 upvote
  > **Top comment:** "Business communication system primarily used for VoIP Phone System"
- Title: [Arabic Support !?](https://www.g2.com/discussions/arabic-support) — 1 comment, 1 upvote
  > **Top comment:** "I am not sure if they support in arabic language but the language has issues in 3cx as it is written from right to left."
- Title: [Teams integration](https://www.g2.com/discussions/34346-teams-integration) — 1 comment, 1 upvote
  > **Top comment:** "www.ring2teams.com/3cx

Let me know if you would like a free trial 

luke@exceltelecom.co.uk"

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/klara-vs-iplum-vs-ringex-vs-3cx)