Hello everyone,
I wish to test a call flow using the SIPP as an UAS which receives calls
from our product(llet us call it VSR). VSR has both PSTN and SIP
interfaces. VSR and SIPP establish calls without any media(primarily
signaling) and all controls for the call on the PSTN interface are
passed on this leg.
I am trying to do the following call flow in a scenario. Can you please
let me know what am I doing wrong? Or is this even legit? Trace_err and
trace_msg gave me the error and SIP signaling.
1. VSR answers PSTN call and places SIP call to SIPP indicating new
call detected.
2. VSR collects conference code and sends a REINVITE to SIPP
3. NOW, SIPP sends a REINVITE to the VSR with info collected in 2
4. I want to place a new call to VSR - SIPP sends an INVITE
5. VSR sends a 100 followed by 200 OK
6. SIPP ignores the 100 and 200 with the following errors,
a. sipp: The following events occured:
b. 2007-02-14 13:10:07: Continuing call on unexpected
message for Call-ID '[EMAIL PROTECTED]': while expecting 'INVITE', received
'SIP/2.0 100 Trying ...
c. 2007-02-14 13:10:07: Continuing call on unexpected
message for Call-ID '[EMAIL PROTECTED]': while expecting 'INVITE', received
'SIP/2.0 200 OK ...
What I don't understand is if SIPP sent an INVITE, how can it expect
INVITE?
Thanks,
Kiran
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