# Avaya Unified Communications vs Yeastar P-Series PBX System Comparison

| | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Star Rating** | 4.2 out of 5 | 4.8 out of 5 | 
| **Total Reviews** | 42 | 81 | 
| **Largest Market Segment** | Enterprise (60.5% of reviews) | Small-Business (75.9% of reviews) | 
| **Entry Level Price** | No pricing available | No pricing available | 

---
## Top Pros & Cons

### Avaya Unified Communications

Pros:
- Ease of Use (3 reviews)
- Communication (1 reviews)

Cons:
- Call Drops (2 reviews)
- Connection Issues (2 reviews)

### Yeastar P-Series PBX System

Pros:
- Ease of Use (26 reviews)
- Features (25 reviews)

Cons:
- Missing Functionality (10 reviews)
- Missing Features (8 reviews)

---
## Ratings Comparison
| Rating | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
  | **Meets Requirements** | 9.1 (30 reviews) | 9.3 (74 reviews) | 
  | **Ease of Use** | 8.7 (30 reviews) | 9.7 (76 reviews) | 
  | **Ease of Setup** | 7.8 (12 reviews) | 9.6 (69 reviews) | 
  | **Ease of Admin** | 9.1 (11 reviews) | 9.5 (69 reviews) | 
  | **Quality of Support** | 8.4 (29 reviews) | 9.3 (74 reviews) | 
  | **Has the product been a good partner in doing business?** | 8.9 (12 reviews) | 9.6 (68 reviews) | 
  | **Product Direction (% positive)** | 6.9 (30 reviews) | 9.8 (75 reviews) | 

---
## Pricing

### Avaya Unified Communications

#### Entry-Level Pricing

No pricing available

#### Free Trial

Yes

### Yeastar P-Series PBX System

#### Entry-Level Pricing

No pricing available

#### Free Trial

No information available

---
## Features Comparison By Category

### Call & Contact Center

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | N/A | N/A |

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Call Reporting** | Not enough data | Not enough data | 
| **Automatic Call Distribution** | Not enough data | Not enough data | 
| **Call Whispering** | Not enough data | Not enough data | 
| **Callback Scheduling** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Call Tagging** | Not enough data | Not enough data | 
| **Dashboard** | Not enough data | Not enough data | 
| **Call Recording** | Not enough data | Not enough data | 
| **Alerts/Escalation** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Call Transcription** | Not enough data | Not enough data | 
| **Queue Management** | Not enough data | Not enough data | 
| **Manual Dialer** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **Auto-Dialer** | Not enough data | Not enough data | 
| **Call Monitoring** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Sentiment Analysis** | Not enough data | Not enough data | 
| **Progressive Dialer** | Not enough data | Not enough data | 
| **Voice Recognition** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **IVR** | Not enough data | Not enough data | 
| **Call Logging** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Outbound Call Center** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **Call Routing** | Not enough data | Not enough data | 
| **Automated Responses** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Call Transfer** | Not enough data | Not enough data | 
| **AI Summarization** | Not enough data | Not enough data | 
| **Call Center Management** | Not enough data | Not enough data | 
| **Inbound Call Center** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Predictive Dialer** | Not enough data | Not enough data | 
| **Blended Call Center** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Performance Management** | Not enough data | Not enough data | 
| **Computer Telephony Integration** | Not enough data | Not enough data | 
| **Call Scripting** | Not enough data | Not enough data | 

### Collaboration & Productivity

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | N/A | N/A |

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 | 

### Contact Center

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | 9.0/10 | 29 |

#### Channels

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Voice** | Not enough data | 9.5 (28 reviews) | 
| **Social** | Not enough data | 8.5 (27 reviews) | 
| **Web Chat** | Not enough data | Feature Not Available | 
| **Mobile SMS** | Not enough data | 7.7 (25 reviews) | 
| **Email** | Not enough data | Feature Not Available | 

#### Generative AI

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **AI Text-to-Speech** | Not enough data | Feature Not Available | 
| **Generative AI** | Not enough data | Not enough data | 

#### Functions

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Session Routing** | Not enough data | 9.0 (28 reviews) | 
| **Session Queuing** | Not enough data | 9.2 (27 reviews) | 
| **Concurrent Calling** | Not enough data | 9.1 (27 reviews) | 
| **Speech Analytics** | Not enough data | Feature Not Available | 
| **Auto Dialer** | Not enough data | Feature Not Available | 
| **IVR** | Not enough data | 9.1 (28 reviews) | 
| **Inbound Screen Pop** | Not enough data | 9.2 (26 reviews) | 
| **Persistent Data** | Not enough data | 9.0 (27 reviews) | 
| **Predictive Dialer** | Not enough data | Not enough data | 
| **Automated Routing** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Reporting/Analytics** | Not enough data | Not enough data | 

#### Agentic AI - Contact Center

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Social Media Integration** | Not enough data | Not enough data | 
| **Computer Telephony Integration** | Not enough data | Not enough data | 

#### Administrative

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Session Summary Notes** | Not enough data | Feature Not Available | 
| **Administrator Access** | Not enough data | 9.3 (28 reviews) | 
| **Reporting & Dashboards** | Not enough data | 9.0 (27 reviews) | 
| **Session Recording** | Not enough data | 9.2 (28 reviews) | 
| **Agent Scheduling and Assignment** | Not enough data | Feature Not Available | 
| **Callback Scheduling** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Call Reporting** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **API** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Call Transfer** | Not enough data | Not enough data | 
| **Data Import/Export** | Not enough data | Not enough data | 
| **Call Scripting** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Call Monitoring** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Automatic Call Distribution** | Not enough data | Not enough data | 
| **Contact Database** | Not enough data | Not enough data | 
| **Chatbot** | Not enough data | Not enough data | 
| **Call Center Management** | Not enough data | Not enough data | 
| **Performance Management** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Quality Management** | Not enough data | Not enough data | 
| **Agent Interface** | Not enough data | Not enough data | 
| **Queue Management** | Not enough data | Not enough data | 
| **Customer History** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **Monitoring** | Not enough data | Not enough data | 
| **Call List Management** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Workforce Management** | Not enough data | Not enough data | 
| **Campaign Management** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 

### Video Conferencing

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | 8.6/10 | 10 |
| **Yeastar P-Series PBX System** | N/A | N/A |

#### Collaboration Tools

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Screen Sharing** | 8.9 (9 reviews) | Not enough data | 
| **Presentations** | Not enough data | Not enough data | 
| **Whiteboarding** | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | 
| **Hand Raising** | Not enough data | Not enough data | 
| **File Sharing** | Not enough data | Not enough data | 
| **Private Chat** | Not enough data | Not enough data | 
| **Real-Time Chat** | Not enough data | Not enough data | 

#### Meeting Coordination

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Scheduling** | 8.0 (10 reviews) | Not enough data | 
| **Recording** | 9.0 (10 reviews) | Not enough data | 
| **Participant Permissions** | 8.8 (10 reviews) | Not enough data | 
| **One-Click Join** | Not enough data | Not enough data | 
| **Video Streaming** | Not enough data | Not enough data | 
| **On-Demand Recording** | Not enough data | Not enough data | 
| **Call Recording** | Not enough data | Not enough data | 

#### Software Type

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Mobile** | 8.5 (9 reviews) | Not enough data | 
| **Browser Application** | Not enough data | Not enough data | 
| **Desktop Application** | Not enough data | Not enough data | 

#### Agentic AI - Video Conferencing

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Decision Making** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Video Support** | Not enough data | Not enough data | 
| **AI/Machine Learning** | Not enough data | Not enough data | 
| **Attendance Management** | Not enough data | Not enough data | 
| **Collaboration Tools** | Not enough data | Not enough data | 
| **Single Sign On** | Not enough data | Not enough data | 
| **Registration Management** | Not enough data | Not enough data | 
| **Email Management** | Not enough data | Not enough data | 
| **Calendar Management** | Not enough data | Not enough data | 
| **Transcripts/Chat History** | Not enough data | Not enough data | 
| **Activity Dashboard** | Not enough data | Not enough data | 
| **Data Security** | Not enough data | Not enough data | 
| **Document Storage** | Not enough data | Not enough data | 
| **Document Management** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Customizable Branding** | Not enough data | Not enough data | 
| **Two-Way Audio & Video** | Not enough data | Not enough data | 
| **Drag & Drop** | Not enough data | Not enough data | 
| **Conferencing** | Not enough data | Not enough data | 
| **Breakout Rooms** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Generative AI** | Not enough data | Not enough data | 
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Whiteboard** | Not enough data | Not enough data | 
| **Reminders** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Meeting Management** | Not enough data | Not enough data | 
| **Brainstorming** | Not enough data | Not enough data | 
| **Presentation Streaming** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Mobile Access** | Not enough data | Not enough data | 
| **Video Conferencing** | Not enough data | Not enough data | 
| **User Management** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **SSL Security** | Not enough data | Not enough data | 
| **File Transfer** | Not enough data | Not enough data | 
| **Email Reminders** | Not enough data | Not enough data | 
| **Remote Access/Control** | Not enough data | Not enough data | 
| **Content Management** | Not enough data | Not enough data | 
| **Microsoft Outlook Integration** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Auto Framing** | Not enough data | Not enough data | 
| **On-Demand Webcasting** | Not enough data | Not enough data | 
| **Automatic Transcription** | Not enough data | Not enough data | 
| **Two Way Audio & Video** | Not enough data | Not enough data | 
| **User Profiles** | Not enough data | Not enough data | 
| **Video Management** | Not enough data | Not enough data | 
| **Polls/Voting** | Not enough data | Not enough data | 
| **Event Management** | Not enough data | Not enough data | 
| **Brand Management** | Not enough data | Not enough data | 
| **HD Audio/Video** | Not enough data | Not enough data | 
| **Presentation Tools** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Host Controls** | Not enough data | Not enough data | 

### Call Center Infrastructure (CCI)

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | 9.1/10 | 36 |

#### Platform

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Omnichannel** | Not enough data | 8.2 (35 reviews) | 
| **Mobile Access** | Not enough data | 9.3 (35 reviews) | 
| **Queue Management** | Not enough data | 9.1 (35 reviews) | 
| **Call Routing** | Not enough data | 9.3 (35 reviews) | 
| **Call Back** | Not enough data | 9.2 (33 reviews) | 
| **IVR** | Not enough data | 9.2 (36 reviews) | 
| **Automatic Call Distribution** | Not enough data | 9.2 (35 reviews) | 
| **Call Transfer** | Not enough data | Not enough data | 
| **Contact Management** | Not enough data | Not enough data | 
| **Call Center Management** | Not enough data | Not enough data | 
| **Multi-Channel Management** | Not enough data | Not enough data | 
| **Survey/Poll Management** | Not enough data | Not enough data | 
| **Campaign Management** | Not enough data | Not enough data | 
| **Call List Management** | Not enough data | Not enough data | 

#### Generative AI

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **AI Text-to-Speech** | Not enough data | Feature Not Available | 
| **Generative AI** | Not enough data | Not enough data | 

#### Workforce Management

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Call Monitoring** | Not enough data | 9.0 (35 reviews) | 
| **Performance Evaluation** | Not enough data | 9.4 (33 reviews) | 
| **Real-Time Monitoring** | Not enough data | Not enough data | 

#### Call Center Infrastructure (CCI)

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Autonomous Task Execution** | Not enough data | Not enough data | 
| **Cross-system Integration** | Not enough data | Not enough data | 
| **Natural Language Interaction** | Not enough data | Not enough data | 
| **Proactive Assistance** | Not enough data | Not enough data | 
| **Third-Party Integrations** | Not enough data | Not enough data | 
| **Computer Telephony Integration** | Not enough data | Not enough data | 
| **Multi-Language** | Not enough data | Not enough data | 

#### Administrative

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Call Recording** | Not enough data | 9.1 (35 reviews) | 
| **Reporting & Dashboards** | Not enough data | 9.4 (34 reviews) | 
| **Call Reporting** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Chat/Messaging** | Not enough data | Not enough data | 
| **Multi-Channel Communication** | Not enough data | Not enough data | 
| **Customer History** | Not enough data | Not enough data | 
| **Alerts/Notifications** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 
| **Phone Key Input** | Not enough data | Not enough data | 
| **Call Logging** | Not enough data | Not enough data | 
| **Customizable Reports** | Not enough data | Not enough data | 
| **Real-Time Data** | Not enough data | Not enough data | 
| **AI Copilot** | Not enough data | Not enough data | 
| **CRM** | Not enough data | Not enough data | 
| **Reporting & Statistics** | Not enough data | Not enough data | 
| **Activity Tracking** | Not enough data | Not enough data | 
| **Live Chat** | Not enough data | Not enough data | 
| **Call Scripting** | Not enough data | Not enough data | 
| **Contact Database** | Not enough data | Not enough data | 
| **Voice Mail** | Not enough data | Not enough data | 
| **Voice Customization** | Not enough data | Not enough data | 
| **API** | Not enough data | Not enough data | 
| **Call Tracking** | Not enough data | Not enough data | 
| **SMS Messaging** | Not enough data | Not enough data | 
| **Callback Scheduling** | Not enough data | Not enough data | 
| **Caller ID** | Not enough data | Not enough data | 
| **Predictive Dialer** | Not enough data | Not enough data | 
| **Surveys & Feedback** | Not enough data | Not enough data | 
| **Auto-Dialer** | Not enough data | Not enough data | 
| **Pre-recorded Messages** | Not enough data | Not enough data | 
| **Real-Time Notifications** | Not enough data | Not enough data | 
| **Multiple Scripts** | Not enough data | Not enough data | 
| **Interaction Tracking** | Not enough data | Not enough data | 
| **Call Disposition** | Not enough data | Not enough data | 

### Cloud PBX Platforms

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | N/A | N/A |

#### Basic Communication - Cloud PBX

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Call Management** | Not enough data | Not enough data | 
| **Communication Management** | Not enough data | Not enough data | 
| **Scalability** | Not enough data | Not enough data | 
| **Integrations** | Not enough data | Not enough data | 
| **Mobile Accessibility** | Not enough data | Not enough data | 
| **Accessibility** | Not enough data | Not enough data | 
| **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 | 

#### Advanced Features - Cloud PBX

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Security and Compliance** | Not enough data | Not enough data | 
| **Analytics and Reporting** | Not enough data | Not enough data | 
| **Support and Reliability** | Not enough data | Not enough data | 
| **Automated attendant** | Not enough data | Not enough data | 
| **Real-Time Analytics** | Not enough data | Not enough data | 

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 |
|---|---|---|
| **Avaya Unified Communications** | N/A | N/A |
| **Yeastar P-Series PBX System** | 9.0/10 | 62 |

#### Platform Basics - VoIP Providers

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **PBX systems, VoIP Softphone** | Not enough data | Not enough data | 
| **Call Management** | Not enough data | Not enough data | 
| **Network monitoring** | Not enough data | Not enough data | 
| **Integrations** | Not enough data | Not enough data | 
| **Virtual PBX** | Not enough data | Not enough data | 
| **SIP trunking services** | Not enough data | Not enough data | 
| **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 | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Phone Calls** | Not enough data | 9.6 (61 reviews) | 
| **Video Calls** | Not enough data | 8.5 (57 reviews) | 
| **Instant Messaging** | Not enough data | 8.8 (57 reviews) | 
| **Screen Sharing** | Not enough data | 8.4 (53 reviews) | 
| **Conference Calls** | Not enough data | 9.2 (59 reviews) | 
| **Desk-to-Desk Calls** | Not enough data | 9.4 (60 reviews) | 
| **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 | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 | 
| **Proactive Assistance** | Not enough data | Not enough data | 

#### Access

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Software Pairing** | Not enough data | 8.8 (58 reviews) | 
| **Browser Extension** | Not enough data | 9.1 (60 reviews) | 
| **Individual Download** | Not enough data | 8.9 (58 reviews) | 

#### Advanced Features

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Hold Music** | Not enough data | 8.8 (60 reviews) | 
| **Automated Attendants** | Not enough data | 9.1 (59 reviews) | 
| **VOiP Number** | Not enough data | 9.1 (60 reviews) | 

#### Additional Functionality

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 | 

### UCaaS Platforms

| Product | Score | Reviews |
|---|---|---|
| **Avaya Unified Communications** | 9.3/10 | 8 |
| **Yeastar P-Series PBX System** | 8.7/10 | 30 |

#### Agentic AI - UCaaS Platforms

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Tenancy Flexibility** | 9.3 (5 reviews) | 8.6 (28 reviews) | 
| **Native VoIP** | 9.0 (7 reviews) ✓ Verified | 9.3 (29 reviews) | 
| **CCaaS Option** | 8.7 (5 reviews) ✓ Verified | 9.0 (28 reviews) | 

#### Features

| Feature | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Voicemail to Email** | Feature Not Available | 9.1 (30 reviews) | 
| **File Sharing** | 9.3 (5 reviews) ✓ Verified | 8.4 (28 reviews) | 
| **Voice Conferencing** | 9.7 (6 reviews) ✓ Verified | 8.8 (30 reviews) | 
| **Video Conferencing** | 9.7 (6 reviews) ✓ Verified | 8.0 (28 reviews) | 
| **Conference Transcripts** | 9.7 (5 reviews) | 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 | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **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 (4):** [VoIP Providers](https://www.g2.com/categories/voip-providers), [Video Conferencing Software](https://www.g2.com/categories/video-conferencing), [UCaaS Platforms](https://www.g2.com/categories/ucaas-platforms), [Cloud PBX Platforms Software](https://www.g2.com/categories/cloud-pbx-platforms)


**Unique to Yeastar P-Series PBX System (2):** [Call Center Infrastructure (CCI) Software](https://www.g2.com/categories/call-center-infrastructure-cci), [Contact Center Software](https://www.g2.com/categories/contact-center)


---
## Reviewer Demographics

### By Company Size

| Segment | Avaya Unified Communications | Yeastar P-Series PBX System | 
|---|---|---|
| **Small-Business** | 18.4% | 75.9% | 
| **Mid-Market** | 21.1% | 20.3% | 
| **Enterprise** | 60.5% | 3.8% | 

### By Industry

#### Avaya Unified Communications

- **Computer Software:** 10.5%
- **Insurance:** 10.5%
- **Information Technology and Services:** 7.9%
- **Utilities:** 5.3%
- **Banking:** 5.3%
- **Marketing and Advertising:** 5.3%
- **Cosmetics:** 5.3%
- **Financial Services:** 5.3%
- **Accounting:** 2.6%
- **Alternative Medicine:** 2.6%
- **Other:** 39.5%

#### Yeastar P-Series PBX System

- **Telecommunications:** 24.1%
- **Information Technology and Services:** 19.0%
- **Computer & Network Security:** 11.4%
- **Computer Networking:** 8.9%
- **Consulting:** 3.8%
- **Business Supplies and Equipment:** 2.5%
- **Civil Engineering:** 2.5%
- **Consumer Services:** 2.5%
- **Food & Beverages:** 2.5%
- **Hospital & Health Care:** 2.5%
- **Other:** 20.3%

---
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### Alternatives to Yeastar P-Series PBX System

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---
## Top Discussions

### Avaya Unified Communications

No discussions available for this product.

### Yeastar P-Series PBX System

No discussions available for this product.

---
**Source:** [G2.com](https://www.g2.com) | [Comparison Page](https://www.g2.com/compare/avaya-unified-communications-vs-yeastar-p-series-pbx-system)