[SR-Users] kamailio SBC - session timers - SOLVED

[marek]

it was missing

rtpengine_manage();

in

route[WITHINDIALOG]

Dne 01/10/2020 v 10:21 Jan Rozhon napsal(a):
>
> Hi,
>
> this might be a long shot but perhaps sdpops module could help you out 
> with the problem. Have you tried it?
>
> Regards, Jan
>
> On 29. 09. 20 13:05, marek wrote:
>>
>> hi,
>>
>> i have kamailio+rtpengine acting as a SBC (private/public net 
>> interfaces)
>>
>> kamailio 5.4.x/rtpengine 9.x/centos 7
>>
>> using TOPOH module
>>
>> modparam("topoh", "mask_ip", "public_IP")
>>
>> i'm rewriting IPs in INVITE like this
>>
>>  $var(ruri) = "sip:" + $(ru{re.subst,/private_IP/public_IP/g});
>>                 $ru = $(ru{re.subst,/private_IP/public_IP/g});
>>                 $tu = $(tu{re.subst,/private_IP/public_IP/g});
>>                 $fu = $(fu{re.subst,/remote_private_IP/public_IP/g});
>> the same for route[WITHINDIALOG] and INVITE
>>
>>
>> i have problem with session timers using re-INVITE method
>>
>> in the first INVITE SDP is correct
>>
>> c=IN IP4 public_IP
>>
>> but
>>
>> in the reinvite is
>>
>> c=IN IP4 private_IP
>>
>> and remote SBC drop with 422 because SDP is changed and SDP version 
>> is not.
>>
>> any tips / best practice?
>>
>> thanks
>>
>> Marek
>>
>>
>>
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>
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