Disclaimer

Known affected versions were inferred from fixed-version data and were not explicitly confirmed by the vendor: 8.1.7

The earliest recollection of this bug is traced back to PAN-OS 8.1 - July 22, 2025. This bug is fixed in PAN-OS versions 8.1.8. Fixed an issue where H.323-based calls lost audio because the predicted H.245 session was not converted to Active status, which caused the firewall to drop the H.245 traffic. ( PAN-OS 8.1.6 and later releases only ) H.323-based calls lose audio when the predicted H.245 session cannot convert to Active status, which causes the firewall to incorrectly drop H.245 traffic. For more information: https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-addressed-issues/pan-os-8-1-8-addressed-issues https://docs.paloaltonetworks.com/pan-os/8-1/pan-os-release-notes/pan-os-8-1-release-information/known-issues/known-issues-related-to-pan-os-8-1-releases