The "Callback-Id" AVP
The "Callback-Id" Diameter AVP, which is of type UTF8String, uses the AVP code "20".
It has the MANDATORY flag, the MAY-ENCRYPT flag.
It is part of the Accounting-Request, Diameter-EAP-Answer, AA-Answer commands.
| Update source | Insertion date |
|---|---|
| Wireshark | 2026-04-26 07:12 |