A Complete IP PBX System
Embrace Boundless Communications

Yeastar P-Series Appliance Edition is an IP PBX system that unifies voice, video, applications, and more. Full-featured, flexible, and secure, it offers three appliance model options with user capacity ranging from 50 to 500. In addition to SIP trunks, P-Series IP PBX also supports PSTN, EI/TI/PRI, ISDN BRI, and GSM/3G/4G, empowering you and your employees to communicate from desktops, IP phones, mobile phones, and on the web effortlessly. As a full-featured IP PBX & UC solution, P-Series Appliance Edition will meet the daily communication needs for every SME organization.

Three IP PBX Models Available. Get the Right Fit



Base Users / Max Users 50

Max Concurrent Calls 25

Max FXS Ports 8

Max FXO/BRI Ports 8

Max GSM/3G/4G Ports 4

Max E1/T1/J1 Ports



Base Users / Max Users 100 / 200

Max Concurrent Calls 30 / 60

Max FXS Ports 8

Max FXO/BRI Ports 8

Max GSM/3G/4G Ports 4

Max E1/T1/J1 Ports 1



Base Users / Max Users 300 / 500

Max Concurrent Calls 60 /120

Max FXS Ports 16

Max FXO/BRI Ports 16

Max GSM/3G/4G Ports 6

Max E1/T1/J1 Ports 2

Voice, Video, and Collaboration in One IP PBX

P-Series PBX Appliance Edition fulfills your everyday communication needs with a complete suite of features, from Linkus UC Clients and a robust call center solution to remote working and a web-based video conferencing solution.

Linkus UC Clients

Linkus UC Clients

Designed for Yeastar PBX System, Linkus UC Clients is a unified communications app that transforms your desktop and mobile phone into a fully-featured office extension. It provides a convenient call experience and offers a variety of powerful collaboration features.

Web Browsers, Android, iOS, Windows, and Mac

One number reaches any device. Work in the office or from home

Presence, Instant Messaging, Meetings, File Sharing, and more

Remote Access Solution

Remote Access Solution

Embrace hassle-free remote working in less than a minute. Yeastar Remote Access Solution enables secure remote connections in only a few clicks. With it, you and your hybrid team can enjoy smooth collaboration and uninterrupted business communications. Most importantly, you will be free from risky port forwarding and complex network setup.

Safely connect your remote SIP endpoints and branch office PBXs

Yeastar-supplied custom domain names offer a private & secure tunnel

Support remote Linkus Access, Web Access, LDAP Access, and more

Call Center Solution

The inbound call center solution is tailored for SMEs to better optimize agent productivity and boost customer satisfaction in a budget-friendly way. Besides standard communications features, Call Distribution, Queue Panel, Wallboard, SLA, and Call Reports are all designed to support more proactive performance monitoring, reporting, and management.

Easy-to-use with user-friendly UI & granular administration

Enriched features to deliver superior customer service

Comprehensive real-time & historical reports

Integrated Video Conferencing

Yeastar P-Series IP PBX introduces a lightweight alternative for SMEs to conduct video conferences. It’s an integrated web-based solution with screen sharing and team chat for employees to interact face-to-face, enhance team collaboration, and build stronger relationships with customers.

Initiate and participate in meetings right from the browser

Hear and see other participants in full HD

No need for additional applications and plugins

Flexible Modular Design.
IP PBX Scalability Made Easy.

The telephony interfaces are completely modular and customizable. Use telephony modules, expansion boards, and DSP modules to easily add more telephony interfaces and expand system capacity.

Telephony Modules

Telephony Modules


S2 Module: 2 FXS ports to connect 2 analog telephones

O2 Module: 2 FXO ports to connect 2 analog PSTN lines

SO Module: 1 FXS port and 1 FXO port for PSTN fallback

B2 Module: 2 NT/TE BRI ports

GSM/3G Module: 1 channel for GSM voice calls

4G LET Module: Enable 4G cellular data on SIM card

Add Telephony Interfaces

Add Telephony Interfaces


To add more telephony interfaces, go for the expansion boards.

EX08 has 4 onboard module slots and 8 interfaces on the panel, while EX30 has 1 onboard E1/T1/PRI port.

P560 supports one expansion board and P570 allows two.


Expand System Capacity


As your business expands, more uses and concurrent calls can also be added easily to meet growing needs.

Each DSP module gives you an extra 100 VoIP users and 30 concurrent calls, and you can add up to 1 DSP module to your P560 and up to 2 DSP modules to your P570.

lexible Modular Design

An IP PBX That's Easy to Deploy, Use, and Manage.


NFC Configuration

IP address configuration can be easily done with NFC write/read and Linkus Mobile Client.


Auto Provisioning

With the IP phone's MAC address, Yeastar P-Series IP PBX will automatically provision the IP phone and give it an extension.


Hot Standby

Ensures the highest level of system resilience, zero or minimal downtime, real-time data replica, and seamless failover.



Interoperable with various IP phones, headsets, gateways & SIP trunks on the market or of your choice.


CRM Integration

Supports 3rd-party CRM integration with Zoho CRM, Salesforce CRM, and Hubspot to unleash the true power of business communications.


Microsoft Teams Integration

Microsoft Teams integration is also supported to deliver a unified experience with unmatched simplicity and new possibilities.

Amazing IP PBX Features and Plan Options At-a-glance

Covering everything SMEs would ask for in daily business communications,
Yeastar P-Series IP PBX offers different subscription plans for your specific needs.
See pricing for different appliance models here.

Standard Plan Enterprise Plan Ultimate Plan

Deployment Mode Appliance Appliance,Software,

Telephony Features


Call Routing

Call Forwarding

Call Monitoring

Call Parking

Call Pickup

Call Recording For Cloud Edition, the Call Recording files are encrypted and can only be accessed from the PBX management portal or via API for data security.

Call Flip

Call Switch

Call Transfer

Call Waiting

Caller ID

Conference Rooms

Speed Dial

Dial by Name


DID (Direct Inward Dialing)

DND (Do Not Disturb)

DOD (Direct Outward Dialing)

CID-based & DID-based Call

Allowed/Blocked Number

Business Features



Ring Group

Paging & Intercom

Operator Panel

Monitor Call Status (Inbound/Outbound)

Monitor Presence Status
(Extension, Ring Group, Queue, Parking Slot)

Drag & drop Dispatch Call

Advanced Call Control

Custom Prompts

Distinctive Ringtone

Music on Hold

MOH Playlist & Streaming

PIN List

BLF Support

LDAP Server

T.38 Fax

Remote Extensions

Business Hours & Holidays


Hot Desking

Emergency Number

Emergency Notifications

CDR & Basic Reports

Administration & Security

Web-based Management Portal

Graphical Dashboard

Auto Provisioning

Bulk Import & Export

Extension Directory

Group & Organization

User Role & Permissions

Operation Logs

Event Logs & Notifications

Backup and Restore


Built-in SMTP Server

Network Drive



Remote Management

Hot StandbySupported on the Appliance & Software Edition.


SRTP & TLS Call Encryption

Password Policy Enforcement

Auto & Static Defense

IP Blocklist

Country Allow/Blocklist

Global IP Blocklist

Outbound call frequency restriction

Two-Factor Authentication (2FA)

Unified Communications

Linkus UC Clients

Web Client

Mobile Client (iOS & Android)

Desktop Client (Windows & MacOS)

Google Chrome Extension


Native Contact Management
(Personal Contacts, Company Contacts)

Audio Conferencing

WebRTC Audio Call

Function Keys on Web Client


Select & Dial with Hotkey on Desktop Client

Door Phone Video Preview


Voicemail Transcription

Group Voicemail

Voicemail to Email

Pop-up URL

Microsoft Teams Integration(via Call2Teams)

Headset Integration

Instant Messaging

Personal and Group Chat

File Sharing

Rich Emojis

Cross-client Synchronization

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)

PBX Web Portal Remote Access

Linkus UC Clients Remote Connection

LDAP Server Remote Access

Function-based Security Control

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

Private & Secure Tunnel

Easy Remote SIP Endpoints RegistrationRegister 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.

Granular Security Control

No Port Portwarding & NAT Issues

WebRTC Trunk

Call Center

Switchboard-type Queue Panel

Queue Callback for Reduced Call Abandonment

Real-time Metrics on Wallboard

SLA for Performance Measurement

Insightful Call Center Reports


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

CRM Integration

Incoming Call Popups

Auto Call Journal

Click to Call CRM Contacts

Hassle-free Integration

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

Helpdesk Integration

New Ticket Auto-creation

Click to Call

Incoming Call Popup

Auto Call Journal

Contacts Synchronization

Support for Zendesk and Zoho Desk

Microsoft 365 Integration

Azure Active Directory Integration

User Sync & Single Sign-on (SSO)

Microsoft Teams Integration

Outlook Integration


PBX Configuration

Call Control

uaCSTA Control

Event Notification

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 (iOS)

Get a Quote Today and Learn More About P-Series IP PBX

Looking for Cloud or Software PBX?

Besides the Appliance Edition, Yeastar P-Series PBX System also comes with a Cloud and a Software Edition.

Software Edition

Software Edition

Cloud Edition

Cloud Edition