Release date: May 14, 2026
Release version: V24.1-GA
New Features
Answered Queue Call Logs
Starting with this version, queue managers and agents can view the answered call logs of their assigned queues. This provides a comprehensive overview of all queue calls—including incoming, answered, and missed calls—showing exactly who handled each call.
Queue call log permissions can be configured granularly (Path: Call Features > Queue > Queue Panel Permissions):
- Manager permissions: New configuration items for queue call logs, including Queue Incoming Call Logs and Delete Queue Incoming Call Logs.
- Agent permissions: Granular control over the view range for answered call logs with the options Personal Only and All Agents.
Only queue call logs generated from firmware version 84.21.0.117 or later are displayed.
Forward on Busy
The call forwarding settings now include a new destination option, Busy (Path: Extension and Trunk > Extension > Presence > Call Forwarding). When 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. This immediately signals a busy status to the caller and prevents unnecessary hold times.
Additionally, the forwarding behavior for the When Busy condition has been optimized: when the destination is set to Hang Up and an incoming call meets the forwarding condition, the system will now reject the call with SIP response code 480 Temporarily Unavailable (previously 486 Busy Here).
Onsite Proxy
Starting with this version, the Onsite Proxy feature is supported. The Onsite Proxy allows you to set up a local proxy server within your corporate network that acts as a relay between local IP phones and the cloud PBX. This improves voice quality and reduces bandwidth usage by processing media streams within the local network. For more information, see the Onsite Proxy article.
Improvements
Extension
- The maximum length of extension numbers has been increased from 8 to 11 characters.
- The IP address of an online registered device can now be copied with one click from the extension list.
-
Avatars can now be uploaded when creating or editing extensions—individually or in bulk (Path: Extension and Trunk > Extension > User > User Information). The image format must be
.jpgor.png, and the file size must not exceed 1 MB.
- New configuration item Ringback Tone for extensions (Path: Extension and Trunk > Extension > Features > Prompt). When an incoming call is received, this custom ringtone is played to the caller before the user answers the call.
- The transport protocol setting for extensions now supports multi-selection (Path: Extension and Trunk > Extension > Advanced > VoIP Settings > Transport). Multiple protocols (UDP, TCP, TLS) can be selected simultaneously.
Note:
When multiple protocols are selected, the following priority rules apply:
- UC Clients / Auto-provisioned IP phones: TLS > TCP > UDP
- Manually registered IP phones: Uses the phone's specified protocol if available; if not specified, follows the default priority TLS > TCP > UDP.
UC Client Server—Login with Extension Number
Users can now log into the Virtual-Call UC Client using their extension number. This login method can be enabled via the UC Client Login Mode setting (Path: Extension and Trunk > Extension > UC Client Server > Basic).
Client Permissions—Upload Avatar
New permission item Upload Avatar in client permissions (Path: Extension and Trunk > Client Permission > Preference Settings > Configuration Item). This controls whether users can change their avatar via the UC Client.
Note:
For the UC Mobile Client, users must use at least the following versions:
- iOS Client: Version 5.25.15 or later
- Android Client: Version 5.25.14 or later
Voicemail—Forward to Multiple Extensions
Users can now forward their voicemails to one or more extensions – directly from the Virtual-Call UC Client.
Note:
For voicemail forwarding, the UC Clients must have the following minimum versions:
- Desktop Client: Version 1.22.4 or later
- Mobile Client: Version 5.25.15 (iOS) / 5.25.14 (Android) or later
Additionally, voicemail playback has been improved: when listening to a forwarded voicemail via a feature code, the system now announces the forwarding source at the beginning.
Call Recording—Increased Download Limit
The maximum download limit for recording files has been increased from 600 MB to 2 GB.
Call Disposition—Higher Capacity Limit
The maximum capacity limit for call dispositions has been increased from 20 to 200.
Messaging—Duplicate Active Sessions
New configuration item: Allow the creation of duplicate active sessions for SMS and WhatsApp channels (Path: Messaging > Message Channel > SMS Channel/WhatsApp Channel > Messaging Settings).
When enabled and a user creates a session on the UC Client where an active session with the same sender and receiver already exists, a confirmation dialog appears. Upon confirmation, the original session is taken over, including the complete chat history.
External Chat Logs
External chat log management has been improved (Path: Reports and Recordings > External Chat Logs):
- New filter Current Session Handler for filtering by the current session handler.
- New quick filter button for quickly displaying chat sessions of deleted extensions and queues.
- One or multiple chat sessions can now be transferred to a specified destination.
PBX Settings—Distinctive Caller ID Name
New option: Display the Diversion SIP Header for Extension Forwarding for Caller ID Name display (Path: PBX Settings > Preferences > Caller ID Name). When enabled and an incoming call is directly forwarded to an extension, the Caller ID will display the name and number of the extension from which the call was forwarded.
Note:
This information is displayed on both IP phones and UC clients. For proper display on UC Clients, users must upgrade to the following minimum versions:
- Desktop Client: Version 1.22.4 or later
- Mobile Client: Version 5.25.15 (iOS) / 5.25.14 (Android) or later
Email Template
- New email template language: Spanish (Path: System > Email > Email Templates > Notification Email Language).
- The email signature has been removed from all email templates.
Microsoft Entra ID (Active Directory) Integration
- New mapping field Avatar in the synchronization configuration. When enabled, user avatars are automatically synced from Microsoft Active Directory to the PBX extensions.
- Extension information of synced users can now be edited directly on the PBX. If you disable the mapping for specific fields, the corresponding information will no longer be synchronized and can be adjusted manually.
CRM/Helpdesk Integration—OAuth2 PKCE
Custom CRM/Helpdesk integration templates now support the authentication method Authorization Code Flow with Proof Key for Code Exchange (PKCE). This method uses a challenge-verifier pair instead of a client secret, thereby improving the security of OAuth 2.0 authentication.
Bug Fixes
- AI Transcription: Fixed an issue where the transcription button did not appear on the call interface when a call was placed using the UC Mobile Client with a version earlier than 5.24.13 (iOS) / 5.24.7 (Android).
- AI Transcription: Fixed an issue where the transcription button was not displayed when a call was answered or placed via the UC Client in CTI mode.
- Call Note: Fixed an issue where the call note button did not appear on the call interface when a call was answered on a phone via CTI mode with the UC Desktop Client.
- CDR: Fixed an issue where downloading CDR in PDF or HTML format failed with the system repeatedly reporting that a large task was running.
- CDR: Fixed an issue where scheduled CDR downloads for a contact returned empty content even though call records existed.
- Inbound Route: Fixed an issue where calls through an inbound route failed when the inbound route name was too long.
- Extension: Fixed an issue where an extension could not receive ring group calls forwarded to a queue when the Accept calls from Ring Group setting was disabled.
-
Extension: Fixed an issue where, after setting an extension's mobile number to
nullvia API, features such as queue, ring group, and outbound route failed to display extensions in the member selection list. - Call Center: Fixed an issue where the time displayed on the wallboard was one hour ahead of the PBX system time.
- Hot Desking: Fixed an issue where users occasionally failed to log in or log out when using Yealink IP phones for hot desking.
- Masked Number: Fixed an issue where the phone number in the caller name field was not hidden in the UC Web Client when calls initiated via "Open API" was enabled.
- SRTP Audio: Fixed an issue where one-way audio occurred 15 minutes into an outbound call via a SIP trunk with SRTP enabled, and the caller could no longer hear the callee.
- Dynamics 365 CRM: Fixed an issue where the recording field in Dynamics 365 phone call activities was always empty, even though Play Call Recording was enabled for the integration.
- Archive: Fixed an issue where archiving recording files to Amazon S3 failed.
- Call Recording: Fixed a multi-party conference recording issue where the recording was not properly synced to a third-party platform due to an incompatible filename format.
- Call Report: Fixed an issue where querying the Queue Performance report failed and returned a timeout error.
Newly Supported Phone Models
The following IP phones are now additionally supported for auto provisioning:
| Vendor | Model |
|---|---|
| Atcom | A10W |
| Alcatel | ALE-2, ALE-3 |
| Yealink | SIP-W90DM |
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