# Cisco Unified Communications Manager (CallManager) vs Vonage Business Communications Comparison
---
## AI Generated Summary
- **G2 reviewers report** that Vonage Business Communications excels in **ease of setup** , with users highlighting its quick and straightforward onboarding process for calling and messaging integration. This is a significant advantage for businesses looking to implement a communication solution without extensive downtime.
- **Users say** that Cisco Unified Communications Manager (CallManager) is a robust platform for **handling unified endpoints** , particularly in environments that require secure, local data center management. Reviewers appreciate its ability to support a wide range of audio and video devices, making it ideal for closed networks.
- **Reviewers mention** that while Vonage offers a user-friendly interface, it has limitations in its **texting features** , which some users find lacking. This could be a drawback for teams that rely heavily on messaging as part of their communication strategy.
- **According to verified reviews** , Cisco Unified Communications Manager is praised for its **stability** and reliability, with long-time users describing it as a "workhorse" in the PBX space. This reputation for dependability is crucial for businesses that prioritize uninterrupted communication.
- **G2 reviewers highlight** that Vonage Business Communications provides excellent **call quality** and timely updates, which enhances user experience. Users appreciate the integration with other tools, making it a versatile option for small businesses looking to streamline their communication processes.
- **Users report** that Cisco Unified Communications Manager has a steeper learning curve, which may pose challenges during initial implementation. However, once mastered, its comprehensive features for video conferencing and voicemail integration are highly valued by organizations that need advanced capabilities.



| | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Star Rating** | 4.4 out of 5 | 4.3 out of 5 | 
| **Total Reviews** | 111 | 503 | 
| **Largest Market Segment** | Mid-Market (50.0% of reviews) | Small-Business (60.3% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Cisco Unified Communications Manager (CallManager)

Pros:
- Reliability (3 reviews)
- Video Conferencing (3 reviews)

Cons:
- Complex Processes (2 reviews)
- Billing Issues (1 reviews)

### Vonage Business Communications

Pros:
- Ease of Use (20 reviews)
- Calling Features (9 reviews)

Cons:
- Texting Limitations (8 reviews)
- Customer Service (4 reviews)

---
## Ratings Comparison
| Rating | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
  | **Meets Requirements** | 9.1 (91 reviews) | 9.0 (404 reviews) | 
  | **Ease of Use** | 8.1 (92 reviews) | 8.9 (409 reviews) | 
  | **Ease of Setup** | 6.9 (52 reviews) | 8.7 (230 reviews) | 
  | **Ease of Admin** | 8.0 (54 reviews) | 8.8 (188 reviews) | 
  | **Quality of Support** | 8.6 (87 reviews) | 8.7 (392 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.7 (53 reviews) | 8.9 (188 reviews) | 
  | **Product Direction (% positive)** | 8.4 (90 reviews) | 8.4 (399 reviews) | 

---
## Pricing

### Cisco Unified Communications Manager (CallManager)

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

### Vonage Business Communications

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Collaboration & Productivity

| Product | Score | Reviews |
|---|---|---|
| **Cisco Unified Communications Manager (CallManager)** | N/A | N/A |
| **Vonage Business Communications** | N/A | N/A |

#### Additional Functionality

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **To-Do List** | Not enough data | Not enough data | 
| **@mentions** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **File Management** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Prioritization** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Brainstorming** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Status Tracking** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Version Control** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Real Time Editing** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Tagging** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Assignment Management** | Not enough data | Not enough data | 
| **Task Scheduling** | Not enough data | Not enough data | 
| **Project Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Secure Data Storage** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Task Progress Tracking** | Not enough data | Not enough data | 
| **Discussions/Forums** | Not enough data | Not enough data | 
| **Commenting/Notes** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Progress Tracking** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 

### Cloud PBX Platforms

| Product | Score | Reviews |
|---|---|---|
| **Cisco Unified Communications Manager (CallManager)** | N/A | N/A |
| **Vonage Business Communications** | 8.7/10 | 12 |

#### Basic Communication - Cloud PBX

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Call Management** | Not enough data | 9.3 (10 reviews) | 
| **Communication Management** | Not enough data | 8.8 (10 reviews) | 
| **Scalability** | Not enough data | 8.3 (10 reviews) | 
| **Integrations** | Not enough data | 7.8 (9 reviews) | 
| **Mobile Accessibility** | Not enough data | 9.0 (10 reviews) | 
| **Accessibility** | Not enough data | 9.3 (10 reviews) | 
| **Contact Management** | Not enough data | Not enough data | 
| **Queue Management** | Not enough data | Not enough data | 
| **Computer Telephony Integration** | Not enough data | Not enough data | 
| **Call List Management** | Not enough data | Not enough data | 
| **Fax Management** | Not enough data | Not enough data | 

#### Advanced Features - Cloud PBX

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Security and Compliance** | Not enough data | 8.7 (9 reviews) | 
| **Analytics and Reporting** | Not enough data | 8.3 (9 reviews) | 
| **Support and Reliability** | Not enough data | 8.7 (10 reviews) | 
| **Automated attendant** | Not enough data | 8.9 (9 reviews) | 
| **Real-Time Analytics** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Virtual Extensions** | Not enough data | Not enough data | 
| **Call Disposition** | Not enough data | Not enough data | 
| **Customizable Caller ID** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Call Routing** | Not enough data | Not enough data | 
| **Call Recording** | Not enough data | Not enough data | 
| **Conferencing** | Not enough data | Not enough data | 
| **Call Transfer** | Not enough data | Not enough data | 
| **Callback Scheduling** | Not enough data | Not enough data | 
| **Role-Based Permissions** | Not enough data | Not enough data | 
| **Automatic Call Distribution** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Real-Time Updates** | Not enough data | Not enough data | 
| **On-Demand Recording** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **IVR** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Call Monitoring** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **SIP Trunking** | Not enough data | Not enough data | 
| **For Cloud Phone Systems** | Not enough data | Not enough data | 
| **Ring Groups** | Not enough data | Not enough data | 

### VoIP Providers

| Product | Score | Reviews |
|---|---|---|
| **Cisco Unified Communications Manager (CallManager)** | 8.6/10 | 46 |
| **Vonage Business Communications** | 8.6/10 | 337 |

#### Platform Basics - VoIP Providers

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **PBX systems, VoIP Softphone** | Not enough data | 8.8 (13 reviews) | 
| **Call Management** | Not enough data | 8.5 (17 reviews) | 
| **Network monitoring** | Not enough data | 9.0 (13 reviews) | 
| **Integrations** | Not enough data | 8.7 (15 reviews) | 
| **Virtual PBX** | Not enough data | 7.9 (13 reviews) | 
| **SIP trunking services** | Not enough data | 7.8 (13 reviews) | 
| **Contact Management** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Fax Management** | Not enough data | Not enough data | 
| **Call List Management** | Not enough data | Not enough data | 
| **Call Center Management** | Not enough data | Not enough data | 
| **Queue Management** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Computer Telephony Integration** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 
| **Call Monitoring** | Not enough data | Not enough data | 
| **Workflow Management** | Not enough data | Not enough data | 
| **Call Center Integration** | Not enough data | Not enough data | 

#### Basic Communication

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Phone Calls** | 9.8 (41 reviews) ✓ Verified | 9.3 (308 reviews) ✓ Verified | 
| **Video Calls** | 8.7 (29 reviews) ✓ Verified | 8.3 (154 reviews) ✓ Verified | 
| **Instant Messaging** | 8.2 (34 reviews) ✓ Verified | 8.9 (218 reviews) ✓ Verified | 
| **Screen Sharing** | 7.7 (8 reviews) | 8.5 (139 reviews) ✓ Verified | 
| **Conference Calls** | 9.4 (38 reviews) ✓ Verified | 9.1 (222 reviews) ✓ Verified | 
| **Desk-to-Desk Calls** | 9.8 (39 reviews) ✓ Verified | 9.3 (257 reviews) ✓ Verified | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Video Call Recording** | Not enough data | Not enough data | 
| **Two-Way Audio & Video** | Not enough data | Not enough data | 
| **SIP Trunking** | Not enough data | Not enough data | 

#### Agentic AI - VoIP Providers

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | 8.0 (9 reviews) | 
| **Cross-system Integration** | Not enough data | 8.5 (9 reviews) | 
| **Adaptive Learning** | Not enough data | 7.4 (9 reviews) | 
| **Proactive Assistance** | Not enough data | 7.6 (9 reviews) | 

#### Access

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Software Pairing** | 7.9 (29 reviews) | 8.8 (173 reviews) | 
| **Browser Extension** | 7.6 (27 reviews) | 8.8 (183 reviews) ✓ Verified | 
| **Individual Download** | 7.3 (25 reviews) ✓ Verified | 8.9 (205 reviews) ✓ Verified | 

#### Advanced Features

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Hold Music** | 9.1 (33 reviews) ✓ Verified | 8.6 (220 reviews) ✓ Verified | 
| **Automated Attendants** | 8.6 (35 reviews) ✓ Verified | 8.9 (235 reviews) | 
| **VOiP Number** | 9.1 (9 reviews) | 9.3 (263 reviews) ✓ Verified | 

#### Additional Functionality

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Live Chat** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **Automatic Call Distribution** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **Purchasing & Receiving** | Not enough data | Not enough data | 
| **Employee Directory** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Call Scripting** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Call Recording** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Virtual Call Center** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Auto-Dialer** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Contact Database** | Not enough data | Not enough data | 
| **Call Transfer** | Not enough data | Not enough data | 
| **Call Reporting** | Not enough data | Not enough data | 
| **Call Logging** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **Customizable Caller ID** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Callback Scheduling** | Not enough data | Not enough data | 
| **IVR** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Call Routing** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **Call Conferencing** | Not enough data | Not enough data | 
| **Call Disposition** | Not enough data | Not enough data | 
| **Predictive Dialer** | Not enough data | Not enough data | 
| **Spam Blocker** | Not enough data | Not enough data | 
| **On-Demand Recording** | Not enough data | Not enough data | 
| **Caller Profiles** | Not enough data | Not enough data | 
| **Multiple User Accounts** | Not enough data | Not enough data | 
| **VoIP Connection** | Not enough data | Not enough data | 
| **Conferencing** | Not enough data | Not enough data | 
| **Text to Speech** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **VoIP** | Not enough data | Not enough data | 
| **Call Queues** | Not enough data | Not enough data | 
| **Call Screening** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Online Voice Transmission** | Not enough data | Not enough data | 
| **Unified Communications** | Not enough data | Not enough data | 
| **Voicemail Transcription** | Not enough data | Not enough data | 

### Audio Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Cisco Unified Communications Manager (CallManager)** | N/A | N/A |
| **Vonage Business Communications** | N/A | N/A |

#### Agentic AI - Audio Conferencing

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Screen Sharing** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Custom Greetings/Messages** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **International Calling** | Not enough data | Not enough data | 
| **Virtual Voicemail** | Not enough data | Not enough data | 
| **Call Scheduling** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Call Conferencing** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Two Way Audio & Video** | Not enough data | Not enough data | 
| **Audio/Video Recording** | Not enough data | Not enough data | 
| **Real-Time Chat** | Not enough data | Not enough data | 
| **Audio Calls** | Not enough data | Not enough data | 

### UCaaS Platforms

| Product | Score | Reviews |
|---|---|---|
| **Cisco Unified Communications Manager (CallManager)** | N/A | N/A |
| **Vonage Business Communications** | 8.8/10 | 55 |

#### Agentic AI - UCaaS Platforms

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Adaptive Learning** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 

#### Extensions

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Tenancy Flexibility** | Not enough data | 8.6 (30 reviews) | 
| **Native VoIP** | Not enough data | 8.9 (32 reviews) ✓ Verified | 
| **CCaaS Option** | Feature Not Available | 9.0 (23 reviews) ✓ Verified | 

#### Features

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Voicemail to Email** | Not enough data | 9.2 (38 reviews) ✓ Verified | 
| **File Sharing** | Not enough data | 8.0 (29 reviews) ✓ Verified | 
| **Voice Conferencing** | Not enough data | 9.0 (29 reviews) ✓ Verified | 
| **Video Conferencing** | Not enough data | 8.6 (23 reviews) ✓ Verified | 
| **Conference Transcripts** | Not enough data | Feature Not Available | 
| **Electronic Faxes** | Not enough data | Not enough data | 
| **IVR** | Not enough data | Not enough data | 
| **Video Call Recording** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Real-Time Reporting** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 
| **Screen Sharing** | Not enough data | Not enough data | 
| **Two-Way Audio & Video** | Not enough data | Not enough data | 
| **Virtual Voicemail** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Trend Analysis** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Virtual Backgrounds** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Call Center Management** | Not enough data | Not enough data | 
| **Access Controls/Permissions** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **Call Transfer** | Not enough data | Not enough data | 
| **Group Messaging** | Not enough data | Not enough data | 
| **Call Recording** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Call Monitoring** | Not enough data | Not enough data | 
| **Task Management** | Not enough data | Not enough data | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Call Routing** | Not enough data | Not enough data | 
| **Multi-User Collaboration** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 

---
## Categories
**Shared Categories (2):** [UCaaS Platforms](https://www.g2.com/categories/ucaas-platforms), [VoIP Providers](https://www.g2.com/categories/voip-providers)

**Unique to Cisco Unified Communications Manager (CallManager) (1):** [Audio Conferencing Software](https://www.g2.com/categories/audio-conferencing)

**Unique to Vonage Business Communications (1):** [Cloud PBX Platforms Software](https://www.g2.com/categories/cloud-pbx-platforms)


---
## Reviewer Demographics

### By Company Size

| Segment | Cisco Unified Communications Manager (CallManager) | Vonage Business Communications | 
|---|---|---|
| **Small-Business** | 6.7% | 60.3% | 
| **Mid-Market** | 50.0% | 33.0% | 
| **Enterprise** | 43.3% | 6.8% | 

### By Industry

#### Cisco Unified Communications Manager (CallManager)

- **Higher Education:** 15.4%
- **Information Technology and Services:** 13.5%
- **Computer Software:** 7.7%
- **Government Administration:** 4.8%
- **Telecommunications:** 4.8%
- **Insurance:** 4.8%
- **Hospital & Health Care:** 3.8%
- **Oil & Energy:** 3.8%
- **Banking:** 2.9%
- **Machinery:** 2.9%
- **Other:** 35.6%

#### Vonage Business Communications

- **Staffing and Recruiting:** 11.7%
- **Information Technology and Services:** 7.6%
- **Insurance:** 7.0%
- **Financial Services:** 4.4%
- **Real Estate:** 4.2%
- **Computer Software:** 3.8%
- **Facilities Services:** 3.4%
- **Law Practice:** 3.2%
- **Health, Wellness and Fitness:** 3.2%
- **Transportation/Trucking/Railroad:** 2.8%
- **Other:** 48.7%

---
## Alternatives

### Alternatives to Cisco Unified Communications Manager (CallManager)

- [Genesys Cloud CX](https://www.g2.com/products/genesys-cloud-cx/reviews) — 4.4/5 stars (1558 reviews)
- [RingEX](https://www.g2.com/products/ringex/reviews) — 4.2/5 stars (1424 reviews)
- [3CX](https://www.g2.com/products/3cx/reviews) — 4.4/5 stars (547 reviews)
- [Mitel](https://www.g2.com/products/mitel/reviews) — 3.8/5 stars (235 reviews)
- [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1415 reviews)
- [Asterisk](https://www.g2.com/products/asterisk/reviews) — 4.6/5 stars (59 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56553 reviews)
- [Twilio](https://www.g2.com/products/twilio/reviews) — 4.1/5 stars (529 reviews)
- [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4201 reviews)
- [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3615 reviews)

### Alternatives to Vonage Business Communications

- [Nextiva](https://www.g2.com/products/nextiva/reviews) — 4.5/5 stars (3615 reviews)
- [RingEX](https://www.g2.com/products/ringex/reviews) — 4.2/5 stars (1424 reviews)
- [3CX](https://www.g2.com/products/3cx/reviews) — 4.4/5 stars (547 reviews)
- [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) — 4.4/5 stars (4201 reviews)
- [GoTo Connect](https://www.g2.com/products/goto-connect/reviews) — 4.4/5 stars (1415 reviews)
- [Mitel](https://www.g2.com/products/mitel/reviews) — 3.8/5 stars (235 reviews)
- [8x8 Work](https://www.g2.com/products/8x8-work/reviews) — 4.2/5 stars (932 reviews)
- [Intermedia Unite](https://www.g2.com/products/intermedia-unite/reviews) — 4.5/5 stars (522 reviews)
- [Zoom Workplace](https://www.g2.com/products/zoom-workplace/reviews) — 4.5/5 stars (56553 reviews)
- [Quo](https://www.g2.com/products/quo-quo/reviews) — 4.7/5 stars (3398 reviews)

---
## Top Discussions

### Cisco Unified Communications Manager (CallManager)

No discussions available for this product.

### Vonage Business Communications

- Title: [What is Vonage Business Communications used for?](https://www.g2.com/discussions/vonage-business-communications-what-is-vonage-business-communications-used-for) — 2 comments
  > **Top comment:** "Vonage provide VOIP services."
- Title: [When will I be able to attach documents and pictures to SMS?](https://www.g2.com/discussions/34448-when-will-i-be-able-to-attach-documents-and-pictures-to-sms) — 2 comments, 1 upvote
  > **Top comment:** "MMS (pictures) is now available. Unsure on sending docs via SMS."
- Title: [What is Vonage Business Communications used for?](https://www.g2.com/discussions/what-is-vonage-business-communications-used-for) — 1 comment
  > **Top comment:** "VOIP"
- Title: [the](https://www.g2.com/discussions/35935-the) — 1 comment, 1 upvote
  > **Top comment:** "hey"
- Title: [i would like to use as personal at home  contact : ???](https://www.g2.com/discussions/31974-i-would-like-to-use-as-personal-at-home-contact) — 1 comment, 1 upvote
  > **Top comment:** "Thank you for your interest in Vonage Business services. Please visit our website at https://www.vonage.com/business/contact/ for more information.  If you..."

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/cisco-unified-communications-manager-callmanager-vs-vonage-business-communications)