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PBX Plus More

P-Series PBX System

Go boundless. Full unified communications for every
business size and industry.

P-Series PBX System

Unified Communications. Easy, Powerful PBX phone system

Embrace Boundless Communciations

Easy to use, optimal, and scalable, Yeastar P-Series PBX System reinvents how business connects by converging calling, meeting, chat, applications, integrations, and more in one. Just break down the boundaries of distance, platforms, and systems.

More in One. Any Device. Anywhere

With our user-friendly Linkus UC Clients, get a world-class phone system inside a single app, from virtually any device.

Linkus UC Clients

All office extension features

Handle calls, chat with teams, audio/video conference, check colleagues’ presence, listen to call recordings, check voicemails, see call logs, and more, in one simple app.

All contacts in one place

With PBX-native contact management, intuitive phonebooks, and cross-system contacts synchronization, manage all your contacts in one place.

Easily switch devices

Use the app on your web, mobile, or desktop and filp calls seamlessly between devices in one tap. All data are in sync.

Elevated Team and Customer Experience

Empower your teams with innovative features purposely-built for business efficency and productivity.

Call Operator Panel

Call Operator Panel

Visualize your active & waiting inbound and outbound calls in one web-based panel.

Drag and drop to dispatch incoming calls to extensions, ring groups, and queues based on real-time availability.

Video Conferencing

Easy Video Conferencing

Schedule, host, or join a meeting from anywhere instantly and securely, right from your web browser.

Ehanched collaboration with HD audio and video, in-meeting chat, screen sharing, and more.

Call Center Solution

Rich Call Center Features

Speed up support, improve customer experience, and track your agents performance with ease.

Power-packed with advanced Queue Panel, Wallboard, SLA monitoring, Call Center Reports, and more.

Powerful Integrations, Streamlined Workflows

Easily streamline your workflows and empower your teams with read-to-use integrations with Microsoft Teams, popular CRMs, helpdesks, and other business platforms.

You also get the ultimate flexibility to build your own with our open APIs.

Powerful Integrations

Easy, Flexible, and Adaptable to Your Needs

Instant Messaging

Easy to use & Scalability

Set up in minutes with an intuitive web GUI driven by point-and-click configuration. Be future-proof with easy user scalability.

IP Phone Auto Provisioning

Broadest Endpoint Supports

Pre-built IP Phone auto provisioning for 270+ mainstream IP Phone models, including those from Yealink, Fanvil, and more.

SIP Trunk Interoperability

SIP Trunk Interoperability

Use phone service of your choice. Proven interoperability with worldwide SIP/PSTN/ISDN trunks; certified with over 120 ITSPs worldwide.

Remote Access Service

Remote Access Service

Enable a consistent in-office communication experience for everyone via a secure and hassle-free remote access service.

Central Management

Remote Management

Easy for Yeastar partners to manage and provision customer-premises Yeastar PBXs remotely and securely in one platform.

Enterprise-grade Reliability

World-class Reliability

Built on top of usability, scalability, security, and future-proofness with a “100% recommended to a friend” reputation.

Outstanding Features and Flexible Plans

Go at your speed and business needs. Supporting flexible deployments with #1 list of PBX and unified communications features,
Yeastar P-Series PBX System is able to do a lot more than you expect it to.

Standard Plan Enterprise Plan Ultimate Plan

Deployment Mode Appliance Appliance, Software,
Appliance, Software,

Telephony Features

Call Forwarding

Call Monitoring (Listen/Whisper/Barge-in)

Call Parking

Call Pickup

Call Transfer (Attended/Blind)

Call Waiting

Call Flip/Switch



Ring Group

Paging & Intercom

Conference Rooms

CDR & Basic Reports

Dial by Name


Caller ID

CID-based & DID-based Call Routing

DID (Direct Inward Dialing)

DND (Do Not Disturb)

DOD (Direct Outward Dialing)


Business Features

Call Recording

Call Allow/Block List

BLF Support

Busy Camp-on

Business Hours & Holidays


Custom Prompts

Distinctive Ringtone

Music on Hold

MOH Playlist & Streaming

T.38 Fax

Fax to Email


Group Voicemail

Voicemail to Email

LDAP Server

PIN List

Speed Dial

Emergency Number

Emergency Notifications

SIP Forking

IP Phone Concurrent Registrations

CTI for Desk Phone Control

Function Keys


Administration & Security

Web-based Management Portal

Graphical Dashboard

Auto Provisioning

Bulk Import & Export

Extension Group & Organization

User Role & Permission

Operation Logs

Event Logs

Event Notifications

Backup and Restore


Built-in SMTP Server

AMI (Asterisk Manager Interface)

Network DriveOnly supported on the Appliance Edition

SNMP Support


SRTP & TLS Call Encryption

Auto & Static Defense

Global Anti-hacking IP Blocklist


Password Policy Enforcement

Two-factor Authentication (2FA)

Allowed Country IP's & Codes

Outbound Call Frequency Restriction

Unified Communications

Linkus UC Clients

Linkus Web Client

Linkus Mobile Client (iOS & Android)

Linkus Desktop Client (Windows & MacOS)

Linkus Google Chrome Extension

Operator Panel

Unlimited Users

Dispatch Active Calls
(Redirect, Transfer, Hang up, Park, Monitor)

Monitor Call Status
(Inbound, Outbound, Extension, Parked Calls, etc.)

Unified Presence

Control Extension Presence


Custom Presence description

Personal & Company Contacts

Audio Conferencing

Voicemail Transcription

Call Pop-up URL

Door Phone Video Preview

Team Chat

1:1 or Group Chat with Colleagues

File & Image Sharing

Push Notification

Sync Across Linkus UC Clients

Remote Access Service Since the Cloud Edition is inherently accessible from anywhere, Remote Access Service is only for the Appliance & Software Edition

Custom PBX Domain Name (FQDN)

Remote & Secure PBX Web Portal Access

Linkus UC Clients Remote Connection

LDAP Server Remote Access

Remote SIP Service Since the Cloud Edition is inherently accessible from anywhere, Remote SIP Service is only for the Appliance & Software Edition.

Hassle-free Remote SIP Registration Register your remote IP phones, branch office PBXs, VoIP gateways, and alike remote SIP endpoints to the PBX easily as if they were deployed on your PBX's intranet.

WebRTC Trunk

No Port Portwarding & NAT Issues

Call Center

Advanced Call Routing Strategies & Queue Call Back

Queue Panel & Customizable Wallboard

SLA and Instant Notifications

Insightful Call Center Reports

Omnichannel Messaging

Unlimited SMS Trunks & WhatsApp Accounts Integration

Central Message Inbox

Automatic Contacts Matching

Message to Queue

Chat Assignment & Transfer

Elevate Chats to Calls in One Click

Message Detailed Records


PBX-native Contacts Management

Separate Permission Control Per Phonebook

CRM Contacts Synchronization

Call Accounting

Custom Rates Applied to Outbound Calls

Analysis Report on Telecom Expenses

Voicemail Annoucement

Call Notification for Group Voicemails

Listen to Messages & Call Back Directly over the Phone

Never Miss an Urgent Message

Ideal to Support Emergency After-hour Services

CRM Integration

Click to Call CRM Contacts

Incoming Call Popups

Auto Call Journal

Contacts Synchronization

Support for Hubspot, Zoho, Salesforce, Bitrix24, and Odoo

Helpdesk Integration

New Ticket Auto-creation

Click to Call Helpdesk Contacts

Incoming Call Popup

Auto Call Journal

Contacts Synchronization

Support for Zendesk and Zoho Desk

Microsoft 365 Integration

Microsoft Teams Integration

Outlook Integration

Azure Active Directory Integration

User Sync & Single Sign-on (SSO)


PBX Configuration APIs

Call Control APIs

uaCSTA Control APIs

Event Notification APIs

Hotel PMS

Windows Active Directory Integration

User, Organization Unit, Group Synchronization

Auto Extension Assignment for New User

Single Sign-on (SSO)

Faster and Easier Administration

Video Conferencing

Bulk Email & Instant Link Invitation

HD Audio and Video

Screen Sharing

In-meeting Team Chat

Video Calls

Video Calls on Linkus Web Client

Video Calls on Linkus Desktop Client

Video Calls on Linkus Mobile Client

Linkus Client SDK

Integrate voice calling to any application easily

Web/Browser SDK

Mobile SDKs: Android, iOS

Desktop SDKs: Windows, MacOS

Feature-rich voice experience HD Calling, Call Control, Call Recording, Call History, Notifications, and more features

Rich, Programmable Code Samples and UI

Secure Authentication with Tokens

Faster and standarized development

Disaster Recovery The disaster recovery feature is supported on the Software Edtion only and requires an additional PBX redundancy server to function. For more information, please contact us.

Cross-region Active-standby Redundancy

Automatic Failure Detection & Fallback

Real-time Data Replication

Secure SD-WAN or VPN Remote Networking

Disaster Recovery The disaster recovery feature requires an additional PBX redundancy server to function. For more information, please contact us.

Cross-region Active-standby Redundancy

Automatic Failure Detection & Fallback

Real-time Data Replication

Secure SD-WAN or VPN Remote Networking

Hotel PMS IntegrationOptional

Room Status Synchronization

Wake-up Call Scheduling

Call Accounting & Minibar Charging

Guest Information and Room Move

Fexible On-premise and Cloud Deployment Options

Cloud Edition

Cloud Edition

Get started in minutes with your communications in the cloud. Zero upfront with unlimited user scalability.

Software Edition

Software Edition

Available to deploy on your own on-prem, public or private cloud server. Supporting up to 10,000 users.

Appliance Edition

Appliance Edition

Arrive out-of-box ready with field-upgradable modular design. Supporting tens to hundreds of users.

Business big & small
love Yeastar


We chose Yeastar over Avaya and other brands because Yeastar remains ahead with the essentials that we were asking for.

Love Yeastar

It’s everything we need to get work done, with new levels of performance and security. The ideal mix of functionality and services not only make our customer services easier, but cut our communications costs by half!

Love Yeastar

Yeastar help us established remote connections for a 300-staff team. We are very satisfied not only for the product itself but also for the speed and availability of the technical service.

Love Yeastar


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