[SR-Users] Incoming call problem

Daniel-Constantin Mierla miconda at gmail.com
Fri Nov 1 20:25:20 CET 2013


Hello,

On 10/30/13 3:22 PM, Jason Sia wrote:
> Hi,
>
> I have  kamailio server and a freeswitch server during a call the 
> kamailio passes the call to freeswitch to play a media and back to 
> kamailio for routing to the destination, this works fine however for 
> samsung devices (any ROM using linphone).  On other device brands, it 
> does not work it always returns USER_BUSY or NUMBER_NOT_FOUND.  After 
> investigation, I found out that if the transport is UDP then it works 
> on all phones, the problem happens if I use TCP as the transport. 
>  Anyone had experienced on this?
for transport tcp and when connection cannot be established, check if 
t_relay() returns error.

With upcoming 4.1, the behavior should be unified as for udp, and get in 
a failure_route.

Cheers,
Daniel

-- 
Daniel-Constantin Mierla - http://www.asipto.com
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