VoLTE message flow

[abodin]

Dear all,

Does Qualcomm provide any DIAG frames for monitoring the VoLTE message flow or status?
Additionally, is there a recommended method to capture and analyze VoLTE signaling, including SIP and IMS-related messages, using Qualcomm diagnostic tools?

Thanks in advance for your help.

Best regards,

[peremen]

Currently DIAG item 0x156E containing the SIP message is parsed (see src/scat/parsers/qualcomm/diag1xlogparser.py). Qualcomm provides some more extra DIAG items related to VoLTE, but they are mostly overlapping with the 0x156E: SIP packets delivered in different situations.

Note that if the device does not use Qualcomm's IMS stack (e.g. some Samsung devices using Snapdragon) then this DIAG item will deliver nothing. This is something I can't tell unless examining the device directly.