Release Date: January 22, 2026
PortSIP today announced the release of PortSIP PBX v22.3.23, a maintenance update focused on bug fixes, stability improvements, and enhanced interoperability.
This release addresses several issues reported in real-world deployments and further improves platform reliability, helping service providers deliver UCaaS, CCaaS, and Cloud PBX services at scale.
Improvements
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Removed parameters from the P-Asserted-Identity header during re-INVITE processing after an attended transfer.
This improves interoperability with certain IP phones where these parameters could previously cause call failures.
Bug Fixes
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Fixed an issue where removing an associated tenant from a trunk could prevent all remaining tenants on that trunk from making or receiving calls.
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Corrected incorrect device information displayed for Gigaset IP phones.
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Fixed an issue in specific SBC deployment scenarios where the PBX sent an incorrect IP address in the SDP.
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Resolved an issue where call recording links and call summaries were not stored correctly in CRM integrations.
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Fixed multiple issues related to Microsoft 365 user synchronization.
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Fixed an issue where subscribing to global_ WSI events* as a system administrator could prevent successful subscription to tenant-level events.
Upgrade Instructions
To upgrade to v22.3.23 from a previous v22.x version, please follow the official upgrade guide:
Upgrade to the Latest Version Within v22.x
For more information or to download the latest release, please visit www.portsip.com or contact the PortSIP support team.
