[Spce-user] Sipwise Call Drop 32 sec

Daniel Grotti dgrotti at sipwise.com
Thu Aug 2 05:22:13 EDT 2018

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:
> Hi,
> 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 sipwise?
> Thanks,
> Alfirus Ahmad
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