28 Mar
2019
28 Mar
'19
2:19 a.m.
Hello,
did you had a chance to have a quick look? Any sugestions are welcome.
Best regards,
Henning
Am 26. März 2019 08:13:20 MEZ schrieb Henning Westerholt <hw(a)kamailio.org>rg>:
Am Dienstag, 26. März 2019, 02:27:17 CET schrieb
Daniel-Constantin
Mierla:
with
--
Henning Westerholt
https://skalatan.de/blog/
> I am currently debugging a strange issue
related to the usage of
> uac_replace_from/to() after msg_apply_changes(). It works all fine,
but in
> a Re-INVITE case it inserts the wrong
headers for the 100 - Trying
case.
The calle
did you mean caller or callee? What side is sending the re-INVITE the troubles?
Is uac using the record-route param to store the info about From/To?
Or
is via dialog variables?
Hi Daniel,
storage is with dialog variables, but in the 100 - Trying case this is
internally done with the uac TM callbacks (If I understood the code
correctly). If I remove the msg_apply_changes() in the Re-INVITE case,
all
works fine.
Call flow (A is a SIP client, B a PSTN destination):
A -> B INVITE, 100, 18x, 200, ACK: all fine
A -> B first Re-INVITE, 100: the 100 - Trying is broken
A -> B second Re-INVINTE, 100: the 100 - Trying is broken
... more Re-INVINTEs
A -> B BYE: all fine
I have attached a trace, see below the 100 - Trying examples:
This is ok:
Kamailio-IP.sip > A-SIDE-IP.na-localise: SIP, length: 405
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP A-SIDE-IP:
5062;rport=5062;branch=z9hG4bKPjh2a4HyDf1ApI7kWK5ShgL7I7w9.LvoeI;received=A-
SIDE-IP
From: sip:A-Number@Kamailio-IP;tag=Ho4cXwV4Q-LBW0n4guPOQwvi6GbiylqO
To: sip:B-Number@Kamailio-IP
Call-ID: po-DL6LvwksnKK56D3lF8HB4wwo6F.GS
CSeq: 6764 INVITE
Server: Carrier-Name SIP Voice Gateway
Content-Length: 0
This is not OK:
12:42:59.336930 IP (tos 0x10, ttl 64, id 61398, offset 0, flags [none],
proto
UDP (17), length 461)
Kamailio-IP.sip > A-SIDE-IP.na-localise: SIP, length: 433
SIP/2.0 100 trying -- your call is important to us
Via: SIP/2.0/UDP A-SIDE-IP:5062;rport=5062;branch=z9hG4bKPj3jfO6Fuk5-
SJQ2EXOIEeYJk1amH.xKvp;received=A-SIDE-IP
From: sip:+Rewritten-Number@sip.voice.Carrier-Name.net;tag=Ho4cXwV4Q-
LBW0n4guPOQwvi6GbiylqO
To: sip:+B-Number@Carrier-IP:5060;tag=7N2BS4K70tZ9Q
Call-ID: po-DL6LvwksnKK56D3lF8HB4wwo6F.GS
CSeq: 6765 INVITE
Server: Carrier-Name SIP Voice Gateway
Content-Length: 0
Cheers,
Henning