Mode 2 works fine if there is no user part in the Contact URI.
Thanks again for your help!

modparam("topos", "contact_mode", 2)
modparam("topos", "xavu_cfg", "tps")
modparam("topos", "xavu_field_a_contact", "a_contact")
modparam("topos", "xavu_field_b_contact", "b_contact")
modparam("topos", "xavu_field_contact_host", "contact_host")

request_route {
....
  $xavu(tps=>a_contact) = "a_contact";
  $xavu(tps=>b_contact) = "b_contact";
....
}

вт, 28 нояб. 2023 г. в 15:42, Denys Pozniak <denys.pozn...@gmail.com>:

> Thanks!
>
> Yes exactly, I set the parameter contact_mode to 1 not to mask Contact.
> Сan I somehow bypass the restrictions of mode 1 through mode 2?
>
>
> вт, 28 нояб. 2023 г. в 13:25, Daniel-Constantin Mierla via sr-users <
> sr-users@lists.kamailio.org>:
>
>> I guess you face such case because of the contact mode parameter:
>>
>>   -
>> https://www.kamailio.org/docs/modules/stable/modules/topos.html#topos.p.contact_mode
>>
>> Likely you set that modparam to 1, which needs to take user part from
>> r-uri and contact. I haven't implemented that functionality, but apparently
>> is for cases when UAs require user part to match corresponding user ids.
>>
>> The default mode is 0, which should not care about lack of user parts in
>> contact header.
>>
>> Cheers,
>> Daniel
>> On 28.11.23 12:22, Denys Pozniak via sr-users wrote:
>>
>> Thanks!
>> Yes, I experimented a little with the sipp and determined that the topos
>> "requires" a user part of Contact URI.
>> If this is so, then it would probably be necessary to indicate this
>> somewhere in the module description.
>>
>> вт, 28 нояб. 2023 г. в 11:42, Yuriy G <ovoshl...@gmail.com>:
>>
>>> Hi Denis. I think this is topos specific.
>>> When topos does topology striping it also affects contact field, so it
>>> adds some data/id username. So if you wish topos to be involved - the same
>>> form of the URI should be used. There is also API from topos module to
>>> handle contact on your own if needed.
>>>
>>> On Tue, Nov 28, 2023, 11:25 Denys Pozniak via sr-users <
>>> sr-users@lists.kamailio.org> wrote:
>>>
>>>> Hello!
>>>>
>>>> My topology is like this:
>>>> PBX -> Kamailio Topos -> User
>>>>
>>>> When calling the user, PBX does not add the user part in the Contact
>>>> URI, something like:
>>>> Contact: <sip:10.10.10.10:5080;transport=udp>
>>>>
>>>> When the customer sends a reinvite, the topos turns off for this
>>>> transaction and the sip partially breaks down with error:
>>>>
>>>> topos [tps_storage.c:319]: tps_storage_fill_contact(): no r-uri user
>>>> topos [tps_storage.c:615]: tps_storage_record(): failed to store
>>>>
>>>> As far as I understand, the RFC allows the absence of the user part in
>>>> the URI and this occurs quite often.
>>>> I can provide the pcap file and debug log in a private message if this
>>>> helps identify the essence of the problem.
>>>>
>>>> # kamailio -v
>>>> version: kamailio 5.7.1 (x86_64/linux) 1cf389-dirty
>>>>
>>>> --
>>>>
>>>> BR,
>>>> Denys Pozniak
>>>>
>>>>
>>>> __________________________________________________________
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>>>> Important: keep the mailing list in the recipients, do not reply only
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>>>
>>
>> --
>>
>> BR,
>> Denys Pozniak
>>
>>
>>
>> __________________________________________________________
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>> --
>> Daniel-Constantin Mierla (@ asipto.com)twitter.com/miconda -- 
>> linkedin.com/in/miconda
>> Kamailio Consultancy and Development Services
>> Kamailio Advanced Training -- asipto.com
>>
>> __________________________________________________________
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>
>
> --
>
> BR,
> Denys Pozniak
>
>
>

-- 

BR,
Denys Pozniak
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