[Spce-user] Sipwise Call Drop 32 sec

stefanormc stefanormc at gmail.com
Thu Aug 2 12:59:07 EDT 2018

I had similar problem and it turned out the problem was loose routing

the provider I had did not support it. I changed provider…

Il giorno 2 agosto 2018 @ 11:22:20, Daniel Grotti (dgrotti at sipwise.com) ha

start to have a look at the kamailio-lb.log and the kamailio-proxy.log in
order to understand why the call is drop.
As Jon suggested already, it could related to the missing ACK received from
the callee party.
The log (and a SIP trace with sngrep on SPCE) will help you to understand
where could be the problem.
Most likely SPCE does not receive the ACK at all from caller side.


Daniel Grotti
Head of Customer Support
Sipwise GmbH, Campus 21/Europaring F15
AT-2345 Brunn am Gebirge

Office: +43(0)130120332
Email: dgrotti at sipwise.com
Website: https://www.sipwise.com

On 08/02/2018 06:22 AM, Alfirus Ahmad wrote:


I installed Sipwise CE at home for testing purpose. I'm using dynamic IP
and my router model is D-link model name: DIR-850L.

I already disable SIP Application Level Gateway (ALG) Configuration and set
DMZ to the Sipwise server.

User A inside LAN -- call -- User B inside LAN = Fine
User A outside LAN -- call -- User B inside LAN = 32 sec drop & can't do
video call
User A outside LAN -- call -- User B outside LAN = 32 sec drop & can't do
video call

Is there a solution? If need to change router, what model i should use? I
read setting STUN server can overcome the problem and how to do that in

Alfirus Ahmad


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