What are the reason Blocked Call Caused" SIP invite failure" in VoLTE?

Parwaan · January 31, 2022, 3:00am

Hi Experts.

I’m new in VoLTE.
During Drive test we faced blocked Call during inital → one blocked cayse is “Dial serving stop” and other Blocked cause is “SRVCC handover fail”. What are the reason of these caused?

RFSpecialist · March 16, 2022, 12:43pm

Did you get this message in DL from P-CSCF after sending SIP INVITE in UL?
After how much time from SIP INVITE you get " SIP invite failure"?

Parwaan · March 16, 2022, 12:43pm

We received “Log Configuration Modified” msg just before call blocked.