Yeastar P-Series Appliance Edition 37.23.0.23 V24.1-Beta

This topic outlines the release history of firmware version 37.23.0.23, from the beta stages to the final release.

  • To try out the new updates, check for firmware updates from PBX admin portal or download the firmware from Yeastar Official Website , and upgrade your phone system.
  • For details on the new features and improvements in Linkus UC Clients and 'Yeastar Linkus for Google' Chrome extension, see Linkus Release Notes.
  • If you found something that doesn't work as expected, you can submit feedback directly from here.

Firmware 37.23.0.23-beta1

Release date:April 23, 2026

Release version:V24.1-Beta

Base version:37.22.0.139

Improvements and bug fixes

Extension
  • Increased the maximum length of extension number from 8 to 11.
  • Added support for copying the IP address of an extension's online device with one click.

  • Added support for uploading avatars when creating or editing extensions individually or in bulk (Path: Extension and Trunk > Extension > User > User Information).
    Note: The image format must be .jpg or .png, and the file size can not exceed 1 MB.

  • Optimized the extension call forwarding settings (Path: Extension and Trunk > Extension > Presence > Call Forwarding):
    • Added a destination option Busy. If this option is selected and an incoming call to the extension meets the forwarding condition, the system will reject the call and return a SIP response code 486 Busy Here.

    • Optimized the call forwarding behavior for the When Busy condition: When the destination is set to Hang Up and an incoming call to the extension meets the forwarding condition, the system will reject the call and return a SIP response code 480 Temporarily Unavailable (previously 486 Busy Here).
  • Added support for configuring ringback tone for an extension (Path: Extension and Trunk > Extension > Features > Prompt). When the extension receives an incoming call, the system will play this ringtone to the caller before the extension user answers.

    For more information, see Configure Ringback Tone for an Extension.

  • Fixed the following extension issues:
    • When the Accept calls from Ring Group setting is disabled for an extension, the extension could not receive a ring group call that was forwarded to a queue it belongs to.
    • After an extension's mobile number was set to null when being edited via API, features that require member selection (queue, ring group, extension group, and outbound route, etc.) failed to display any extensions in the member selection list.
Client Permissions
Added a permission control setting Upload Avatar (Path: Extension and Trunk > Client Permission > Preference Settings > Configuration Item), which controls whether specified extension users can upload their extension avatars on Linkus UC clients.

Note: For Linkus Mobile Client, users must upgrade their Linkus to the following versions:
  • Linkus iOS Client: Version 5.25.15 or later
  • Linkus Android Client: Version 5.25.13 or later
Trunk
  • Added a configuration item Support SIP REFER (Path: Extension and Trunk > Trunk > Advanced > VoIP Settings) for SIP trunk. When enabled, you can specify the allowed transfer destination types Internal Number and/or External Number. The PBX will process REFER requests received via this trunk and transfer the call to either internal or external destination as instructed.
    Note:
    • For external number, the PBX will prepend the configured prefix to the target number in the REFER request when transferring the call.
    • Only supports blind transfer.

  • Fixed the call issue: When placing an outbound call via a SIP trunk with SRTP enabled, one-way audio occurred 15 minutes later and the caller could not hear the callee.
Auto Provisioning
  • Added an auto provisioning configuration option Enable Yealink Phone Configuration File Encryption (Path: Auto Provisioning > Phones > Options), which determines whether the PBX will encrypt the configuration files for Yealink phones during the auto-provisioning process.

  • Added support for copying the IP address of an IP phone in the list with one click.

  • Added a Distinctive Ringtone setting for auto-provisioned Mitel phones (Path: Auto Provisioning > Phones > ), which allows you to configure alert info and corresponding ringtones.

  • Added compatibility with the 48kHz Opus sampling rate of IP phones. The PBX can properly process RTP audio streams using this sampling rate from IP phones, providing clearer call audio quality.
    Note: This compatibility applies to both auto-provisioned IP phones and those with manually registered extensions.
  • Fixed the Auto Provisioning issue: When auto provisioning an Avaya IP phone and setting the phone language to J169/J179 French, saving the configuration failed.
Inbound Route
Fixed the inbound route issue: When an inbound route name was too long, calls routed through the inbound route would fail.
Call Queue
  • Optimized queue manager permission settings: Added the following configuration items for queue call logs (Path: Call Features > Queue > Queue Panel Permissions > Manager).

    Configuration Item Description
    Queue Incoming Call Logs When enabled, queue managers can view call logs of all answered calls in the queue.
    Note: Only queue call logs generated in version 37.21.0.117 or later are accessible. Historical queue call logs prior to this version are not supported.
    Delete Queue Incoming Call Logs When enabled, queue manager can delete call logs of answered calls in the queue.
    Note: After deletion, all agents and managers in the queue cannot view the deleted records, but the records are still retained in the CDR.

  • Optimized queue agent permission settings: Added granular control over the view range for answered call logs, which is divided into the following two options (Path: Call Features > Queue > Queue Panel Permissions > Agent).

    Option Description
    Personal Only If selected, authorized queue agents can only view the queue call logs they answered on their Linkus clients.
    All Agents If selected, authorized queue agents can view the queue call logs answered by all agents in the queue on their Linkus clients.
    Note: Only queue call logs generated in version 37.21.0.117 or later are accessible. Historical queue call logs prior to this version are not supported.
  • Fixed the Call Center issue: The time displayed on Wallboard was one hour ahead of the PBX system time.
Voicemail
Call Recording
  • Increased the download size limit for recording files from 600 MB to 2 GB.
  • Fixed a multi-party conference call recording issue: Due to an incompatible filename format with a third-party platform, the recording was not parsed correctly, resulting in incomplete recording synchronization to the third-party platform.
Call Disposition
Increased the maximum capacity limit from 20 to 200.
Hot Desking
Fixed the Hot Desking issue: When using Yealink IP phones for hot desking, users occasionally failed to log in or log out.
Messaging
  • Added a configuration item Allow the Creation of Duplicate Active Sessions for SMS channel and WhatsApp channel (Path: Messaging > Message Channel > SMS Channel/WhatsApp Channel > Messaging Settings).

    When enabled, if an extension user creates a session on Linkus clients, and the session already exists (same sender and receiver) on the channel, a prompt will appear. If the user continues, the original session will be taken over by that user, along with the complete chat history.

    Note: For Linkus Mobile Client, users must upgrade their Linkus to the following versions:
    • Linkus iOS Client: Version 5.25.15 or later
    • Linkus Android Client: Version 5.25.13 or later

  • Optimized external chat log management (Path: Reports and Recordings > External Chat Logs).
    • Added support for filtering chat sessions by Current Session Handler.

    • Added a quick operation button , which can quickly filter chat sessions of deleted extensions and queues.

    • Added support for transferring one or multiple chat sessions to a specified destination.

    For more information, see Check and Manage External Chat Logs.
PBX Settings
  • Added an option Display the Diversion SIP Header for Extension Forwarding for Distinctive Caller ID Name (Path: PBX Settings > Preferences > Caller ID Name).

    If enabled, when an incoming call to an extension is directly forwarded to a designated destination type specified in Extension Forwarding with Diversion SIP Header setting (Path: PBX Settings > SIP Settings > Advanced > Other Options), the Caller ID will display the name and number of the extension from which the call was forwarded.
    Note: This information can be displayed on both IP phones and Linkus clients. For proper display on Linkus clients, extension users must upgrade their Linkus clients to the following versions:
    • Linkus Desktop Client: Version 1.22.4 or later
    • Linkus Mobile Client: Version 5.25.15 (iOS) / 5.25.13 (Android) or later
  • Added a destination type Queue for the Extension Forwarding with Diversion SIP Header setting (Path: PBX Settings > SIP Settings > Advanced > Other Options). If selected, when an incoming call to an extension is forwarded to a queue, the INVITE request will carry the Diversion header to inform the destination which extension the call was forwarded from.

  • Fixed the Masked Number issue: When Calls initiated via "Open API" was enabled, the phone number in the caller name field was not hidden in Linkus Web Client for calls initiated via API.
Web Server
Fixed the Web Server HTTPS certificate issue: When the Public IP (NAT) mode was set to Yeastar Domain and the Web Server HTTPS Certificate was configured for the corresponding domain, saving the configuration would fail.
Email Template
  • Added support for email template language of Spanish (Path: System > Email > Email Templates > Notification Email Language).
  • Removed the email signature from the bottom of all email templates.
Archive
Fixed the archiving issue: Failed to archive recording files to Amazon S3.
Active Directory Integration
Optimized the user synchronization settings:
  • Added a mapping field Avatar in Map section. If selected, user avatars will be synced from Active Directory to the PBX extensions.

  • Added support for modifying the extension information of synced users.

    If you disable the mapping of specific fields, the corresponding information will not be synchronized, and you can edit the information directly on the PBX.

For more information, see Synchronize Active Directory Users to Yeastar P-Series PBX System.
Collaboration Integration
Optimized the user matching mechanism when the Auto associate Extensions with the Users that share the same email address option is enabled.
Integration Description
Microsoft Entra ID (Azure Active Directory) Integration PBX uses the User principal name of Microsoft Entra ID user (instead of the Email Address mapping field configured in the Map section) to match the PBX extension's email address.
Google Workspace Integration PBX uses the Primary email in Google Workspace (instead of the Email Address mapping field configured in the Map section) to match the PBX extension's email address.
Note: For Active Directory Integration and Red Hat SSO Integration, PBX continues to use the Email Address mapping field configured in the Map section for matching. To ensure consistent and secure matching, it is strongly recommended to restrict users from modifying their email addresses in the identity provider platforms.
Custom CRM/Helpdesk Integration Template
Added support for setting Authorization Code Flow with Proof Key for Code Exchange (PKCE) as the OAuth 2.0 authorization mode.
When configuring OAuth 2.0 authentication in an integration template, you can enable this mode using the configuration items Authorization Mode and PKCE Verification Method (Path: Request Configuration > Authentication Method). This allows the integration to perform OAuth 2.0 authorization using the PKCE challenge-verifier pair instead of a client secret, effectively preventing authorization code interception and thus improving security.

For more information, see Add a CRM Integration Template and Add a Helpdesk Integration Template.

API
Optimized the API interfaces for the following features:
Feature Description
Extension
  • Added support for querying or configuring avatar for extensions via the following API interfaces:
    • Added an interface extension/uploadtempavatarfile, which can be used to upload extension avatar images to the PBX, with a file ID returned.
    • Added a parameter avatar for interfaces extension/get, extension/query, extension/create, and extension/update, which can be used to query the file ID of extension's avatar image, or set extension's avatar by specifying the corresponding file ID.
  • Added a value send_busy to the destination parameters in extension presence settings for interfaces extension/get, extension/query, extension/create, and extension/update. If the destination is send_busy, the PBX will reject incoming calls and return a SIP response code 486 Busy Here.
For more information, see Developer Guide - Extension.
Trunk Added the following parameters for interfaces trunk/get, trunk/query, trunk/create, and trunk/update to query or configure SIP REFER related settings:
  • refer_to_support: Whether the PBX can process SIP REFER request received via the trunk.
  • refer_to_mode_list: The allowed transfer destination type(s) (internal number and/or external number).
  • refer_to_prefix: The prefix to be prepended to the target number when transferring to an external number.
For more information, see Developer Guide - Trunk.
Voicemail
  • Added an interface vm/forward, which can be used to forward a specific voicemail message to one or multiple extensions.
  • Added a parameter vm_detailInfo for interfaces vm/get and vm/query, which returns the forwarding source (extension name and number) if the voicemail was forwarded.
For more information, see Developer Guide - Voicemail.
Message Channel Added a parameter enb_duplicate_active_session for interfaces message_channel/get, message_channel/query, message_channel/create, and message_channel/update, which can be used to query or configure whether the creation of duplicate sessions is allowed in the message channel.

For more information, see Developer Guide - Message Channel.
CDR
Fixed the scheduled CDR issue: Call records for a contact could be searched in CDR, but downloading the scheduled report for the same contact returned empty content.
Call Report
Fixed the call report issue: Querying the Queue Performance report failed, and the system returned a "request timeout" error, even though the actual request limit had not been reached.