Audiocodes Truncated Call-ID Defect
- Merry Arpaia
Audiocodes Mediant 1000 SBC is truncating Call-ID longer than 128 characters making responses get the “SIP/2.0 481 Call/Transaction Does Not Exist” when call is sent from Digium SIP trunk
This is a documented Audiocodes defect. The defect ID is 150893 and is fixed in Mediant version v.7.20A.202.xxx.
The customer to examine the release notes for this version and if there are no changes that will affect them negatively, apply the latest update to their SBC to resolve this issue.
From the table beginning on page 160 [1] of the Mediant version 7.2 release notes (relevant entry is on page 162, you can just search for 150893 to find it):
2.25.3 Resolved Constraints
This section lists constraints from previous releases that have now been resolved.
Table 2-34: Resolved Constraints in Version 7.20A.202xxx
Incident ID 150893
Description: When the device receives a SIP INVITE with a Call-ID greater than 129 characters,
the device truncates the Call-ID to 129 characters. As a result, the SBC call fails.