[SR-Users] TOPOS issue

[David Villasmil]

Hello guys,

I have this scenario where I have an ongoing transaction.
I receive a 180 (non 100rel) with some to_tag, which i forward back to the
caller.
Then I receive an 183 (100rel) which is forwarded back to the caller, who
in turn PRACKs it.
It is then that Kamailio (apparently) can't match that transaction
internally and replies to the caller (the one PRACKing the 183 (100rel)),
with 493 FORBIDDEN.

I'm attaching a trace flow. (Kamailio is 10.255.0.1) you need to open the
email really wide to see it properly.

Anyone ever encountered this?
Is this valid and should work?

|Time     | 10.15.169.4 (FS)     10.255.0.1 (KAM) | (KAM) 1.1.1.10
 1.2.3.13      |
|         |                   |                   |                   |
              |
|         |                   |                   |                   |
              |
|0.000000 |         INVITE SDP (g722 g71          |                   |
              |
|         |(6000)   ------------------>  (5060)   |                   |
              |
|0.000941 |         100 Telnyx trying             |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|0.046558 |                   |                   |         INVITE SDP
(g722 g71          |
|         |                   |                   |(33033)
 ------------------>  (5060)   |
|0.102078 |                   |                   |         100 Trying,
boss              |
|         |                   |                   |(33033)
 <------------------  (5060)   |
|0.386867 |                   |                   |         180 Ring a ling
a li          |
|         |                   |                   |(33033)
 <------------------  (5060)   |
|0.387578 |         180 Ring a ling a li          |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|3.413368 |                   |                   |         181 Prending to
forw          |
|         |                   |                   |(33033)
 <------------------  (5060)   |
|3.414373 |         181 Prending to forw          |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|6.441704 |                   |                   |         183 Seeing what
I ca          |
|         |                   |                   |(33033)
 <------------------  (5060)   |
|6.442896 |         183 Seeing what I ca          |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|6.890173 |         PRACK     |                   |                   |
              |
|         |(6000)   ------------------>  (5060)   |                   |
              |
|6.895497 |         403 Forbidden R1              |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|9.473035 |                   |                   |         486 Actually,
I'm qu          |
|         |                   |                   |(33033)
 <------------------  (5060)   |
|9.473561 |                   |                   |         ACK       |
              |
|         |                   |                   |(33033)
 ------------------>  (5060)   |
|9.473902 |         486 Actually, I'm qu          |                   |
              |
|         |(6000)   <------------------  (5060)   |                   |
              |
|9.921200 |         ACK       |                   |                   |
              |
|         |(6000)   ------------------>  (5060)   |                   |
              |





Regards,

David Villasmil
email: david.villasmil.work at gmail.com
phone: +34669448337
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