[Serusers] Strange problem - SIP-->PSTN - 40 sec calls duration

Andrei Pelinescu-Onciul andrei at iptel.org
Wed Nov 2 19:58:06 CET 2005


On Nov 02, 2005 at 18:48, deviator <deviator at inbox.ru> wrote:
> Hello!
> 
> When i'm trying to call from UA to PSTN i have a call failure after 40 sec. All my UA's (private and public ip) works fine when calling each other. Calls from PSTN ---> UA's also works fine. But when i'm calling to PSTN i may talk only 40 sec. I'm tried from NAT UA's and UA's with public ip, softphones and ipphones - same result. I don't know what to do, someone please help me.


The ACK doesn't reach the gateway. Do you drop it in your ser.cfg?
Anyway the UA seems broken, it uses strict routing, but it does not copy
 the entire uri from Record-Route:

 ACK sip:989099037259 at 212.212.212.212:5060;nat=yes

for Record-Route:
<sip:989099037259 at 212.212.212.212:5060;nat=yes;ftag=2245526517777;lr=on>.


(notice the missing lr=on in the ACK uri).


Andrei

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