[Spce-user] Call stops after 32 seconds

Joern Stenkamp joern at tel2ip.net
Tue Aug 30 11:11:08 EDT 2011

On 08/30/2011 04:47 PM, Andrew Pogrebennyk wrote:
> Joern,
> On Tue, Aug 30, 2011 at 4:10 PM, Joern Stenkamp<joern at tel2ip.net>  wrote:
>> hopefully a tcpdump on port 50060 is also okay for you. If not just drop me
>> a note and I will generate these traces using ngrep.
> Is there some kind of SIP ALG in front of the Spce box? As I see it
> inserts and extra RR header in the failed call:
> Record-Route:<sip:4961712915012 at sip-spslab.qwertzu.net;pgw-call=call-736>
> it doesn't look like it was inserted by the Spce. What's wrong with
> this RR is that it doesn't contain the ;lr tag so the client starts
> doing strict routing instead of loose routing the ACK can not be
> routed.

I use the SPCE as a Class 5 switch connected to a Class 4 switch (Cisco 
PGW). Only calls to external destinations should pass  the class 4. The 
RR is from my class 4 !?
But the dialed number is on the SPCE.
Need to have a detailed look into the trace. The R-URI looks different.

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