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You are currently using Enterprise Plan . Do you want to upgrade to the Ultimate Plan?

Note: to upgrade to Ultimate Plan you will only be charged with the prorated difference over your remaining Ultimate Plan subscription ! The upgrade will immediately take effect upon the payment.

Yes, continue with the order I want to renew my Enterprise Plan

You are currently using Enterprise Plan . Are you sure to purchase Ultimate Plan now?

Note: theEnterprise Plan will automatically take effect on the PBX only when your Enterprise Plan expires. Or you can choose the Enterprise Plan to extend your current subscription.

Yes, continue with the order. I want to renew my Enterprise Plan.

P-Series Appliance Edition Plans and Pricing

Select Your PBX Model:

Monthly Annually Save up to --


Included in P-Series Appliances - superior “PBX plus more” systems designed for SME.

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Compare different P-Series PBX models here.

Most Popular


$ USD$ USD /PBX/month,billed annually SAVE 00%


Add Call Center, Remote Access Service to your P-Series appliance.


$ USD$ USD /PBX/month,billed annually SAVE 00%


Add Video Conferencing, Call Center, Remote Access Service and more to your P-Series appliance.

All prices listed in this page are exclusive of VAT. Need help with the purchase or have any questions? contact us.

Compare Plan

Basic Plan Enterprise Plan Ultimate Plan

Deployment Mode Appliance Appliance,Software,

Business Features

BLF Support

Business Hours & Holidays

Allowed/Blocked Numbers

Call Recording

Concurrent Registrations for IP Phones

Custom Prompts

Distinctive Ringtone


Emergency Number

Emergency Notifications

Fax to Email

Group Voicemail

LDAP Server

Mobility Extension

Music on Hold

MOH Playlist

Microsoft Teams Integration

PIN List

Remote Extensions

Speed Dial

T.38 Fax

Fax to email


Personal Voicemail Greeting

Voicemail to email

WebRTC Audio Call

Telephony Features


Call Forwarding

Call Monitoring (Listen/Whisper/Barge-in)

Call Parking

Call Pickup

Call Routing

Call Transfer (Attended & Blind)

Call Waiting

Caller ID

CID-based & DID-based Call


Conference Rooms

Dial by Name

DID (Direct Inward Dialing)

DOD (Direct Outward Dialing)

DND (Do Not Disturb)


Paging & Intercom


Ring Group

CDR & Basic Reports

Administration & Security

Auto Provisioning

AMI (Asterisk Manager Interface)

Web-based Management & User Portal


Granular User Role

Bulk Import & Export (Extension, Trunk, Route, Contacts)

Extension Group

Built-in SMTP Server

Hot StandbySupported on the Appliance & Software Edition.

Event Logs

Event Notifications

Network Drive

Backup and Restore

Operation Logs

Secure Communications (SRTP & TLS)



Password Policy Enforcement

Auto Defense

Static Defense

IP Blocklist

Security Alerts via Email

outbound call frequency restriction

Unified Communications

Linkus Web Client

Linkus Mobile Client (iOS & Android)

Linkus Desktop Client (Windows & MacOS)

CTI (Computer Telephony Integration)

Yeastar Linkus for Google Chrome Extension

Linkus Select & Dial with Hotkey

Company & Personal Contacts

Linkus Web Client Function Key

Audio Conferencing

Unified Messaging

Pop-up URL

Voicemail Transcription

Operator Panel

Unlimited Users

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

Monitor Call Status (Inbound, Outbound, Extension,
Parked Calls,Ring Group, Queue)

Unified Presence

Control Extension Presence Status

Switch Business Hours

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

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

Yeastar Supplied Domain Name

Remote and Secure PBX Web Portal Access

Linkus UC Clients Remote Connection

Consistent In-office UC Experience

Advanced Access Control for Further Security

CRM Integration

Incoming Call Popups

Auto Call Journal

Click to Call CRM Contacts

Hassle-free Integration

Support for Zoho and Salesforce


PBX-native Contacts Management

Separate Permission Control Per Phonebook

CRM Contacts Synchronization

Sync Across Linkus UC Clients

Instant Messaging

On-one-one or group chat

Cross-client synchronization

File sharing & image sharing

Call Accounting

Custom Rates Applied to Outbound Calls

Analysis Report on Telecom Expenses

Video Conferencing

Bulk Email & Instant Link Invitation

HD Audio and Video

Screen Sharing

In-meeting Team Chat

Web Video Call

Integrated 1:1 Video on Web Client

Seamless Video/Audio Call Switch

HD Audio and Video

Shrinkable Call Window

1Plan Info
2Billing Info

Need help with the purchase or have any questions? contact us.

Plan Info


Select PBX Model:

Subscription Term:

Monthly Annually Save --

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PBX Serial Number*:

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Pricing Plan

P550 Enterprise Plan

$ USD / month

Billed MonthlyAnnually

Subscription Term: 1-year

Plan (before): Enterprise Plan

Plan (after): Ultimate Plan

Upgrade Fees: $XXX USD

Total: $ USD


Fill in your billing information to show on the invoice

First Name*

Last Name*

Email Address*

Phone Number*

Company name*

Zip/Postal Code*





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    Order Summary

    Order Number:

    Plan:P550 Enterprise Plan

    Monthly Subscription Fee: $ USD

    Subscription Term:1-year

    Expiration Date (before): xxx

    Expiration Date (after): xxx

    Plan (before): Enterprise Plan

    Plan (after): Ultimate Plan

    Upgrade Fees: $XXX USD

    PBX SN:

    PBX Model:P550

    Expiration Date: xxx

    PayPal Automatic AnnualMonthly Renewal:

    Auto-renewal Discount:

    Next Billing Date:

    (3 days prior to the service expiration date)

    Next Billing Amount:

    Order Total: $ USD

    Payment Methods:

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    Device Information
    Serial Number:--
    Product Model:P550
    Before purchase: ----
    After purchase:    Expiration Date:--