[OpenSIPS-Users] Strange ACK between OpenSIPS and Kamailio

Bogdan-Andrei Iancu bogdan at opensips.org
Mon Nov 13 07:59:02 UTC 2023


Hi,

if you have a pcap showing the inbound and outbound traffic on OpenSIPS, 
I can do a quick doublecheck - of course, please send it off list.

Regards,

Bogdan-Andrei Iancu

OpenSIPS Founder and Developer
   https://www.opensips-solutions.com
   https://www.siphub.com

On 11/9/23 4:32 PM, Social Boh wrote:
> Thank you Alex
>
> I'll search to see where the problem may be
>
> ---
> I'm SoCIaL, MayBe
>
> El 9/11/2023 a las 9:17 a. m., Alex Balashov escribió:
>> Hi,
>>
>> 1) Neither Kamailio nor OpenSIPS send 200 OKs;
>>
>> 2) Neither Kamailio nor OPenSIPS send ACKs.
>>
>> They merely relay these.
>>
>> 3) Contact URI alterations may be occurring along the chain, and are 
>> likely causing your issue.
>>
>> -- Alex
>>
>>> On 9 Nov 2023, at 09:12, Social Boh <social at bohboh.info> wrote:
>>>
>>> Hello list,
>>> I have a problem in communication between an OpenSIPs and a 
>>> Kamailio. The call comes from OpenSIPs to Kamailio, it is answered 
>>> but the ACK that OpenSIPs sends to Kamailio I think is not correct:
>>> 200OK from Kamailio to OpenSIPs: Contact: <sip:194.195.XXX.XXX:49999>
>>> ACK from OpenSIPs to Kamailio: Contact: 
>>> <sip:user at 177.242.XXX.XXX;did=86a.799c1654>
>>> I think the ACK Contact Header from OpenSIPs to Kamailio should have 
>>> the same 200 OK content
>>> 194.195.XXX.XXX is a Asterisk PBX
>>> 177.242.XXX.XXX is OpenSIPs
>>> Result Kamailio don't send ACK to Asterisk PBX and the call ends 
>>> about 30 seconds.
>>> Any hint, please?
>>> -- 
>>> ---
>>> I'm SoCIaL, MayBe
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opensips.org
>>> http://lists.opensips.org/cgi-bin/mailman/listinfo/users
>
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