October 15, 2025 — PortSIP Announces PortSIP PBX v22.2.22
PortSIP is pleased to announce the release of PortSIP PBX v22.2.22, delivering key stability improvements and bug fixes across our robust and flexible Unified Communications platform. These updates are part of our continued commitment to performance, reliability, and service excellence for our customers and partners.
What’s New in PortSIP PBX v22.2.22
Enhancements
- Calls that fail with 486or 603 are now automatically forwarded to voicemail. All other 4xx/5xx failures terminate the call immediately.
- Reduced the size of NOTIFY messages for the dialog-info (BLF) event to help prevent MTU issues when using UDP transport.
- Enabled the allow_rtp_on_mute option by default in the Snom phone template.
- Set the extension name for the DECT phone handset.
Bug Fixes
- Fixed an issue where the Diversion header was incorrectly set up when sending calls to a SIP trunk.
- Fixed the /call_queues/{id}/waiting REST API endpoint, which was previously non-functional.
- Fixed an issue where the voicemail playback date was played incorrectly in English.
- Fixed an issue where the transfer key was configured incorrectly on SNOM and Yealink phones during auto-provisioning.
Upgrade Instructions:
To upgrade to v22.2.22 from a previous v22.x version, please follow the official guide:
Upgrade to the latest v22.x on Linux
For more information or to download the latest release, please visit www.portsip.com or contact our support team.
