[Spce-user] NEC SL 1100 pbx

[Andrew Pogrebennyk]

Hi John,

I can also only imagine that perhaps it is having a problem with
127.0.0.1 address in Record-Route headers, like Audiocodes devices do.

The possible workaround for v2.7 is described here:
http://www.sipwise.com/doc/2.7/spce/ar01s05.html#_audiocodes_devices_workaround

Not sure if that is the case with NEC but trying it doesn't harm either.

Andrew

On 10/02/2013 10:50, John Murray wrote:
> Hello,
> 
>  
> 
> I have a NEC SL 1100 pbx that I am trying to connect to my SPCE for
> making calls.
> 
> The pbx is set-up as a standard subscriber.
> 
> Calls from PSTN via SPCE work fine but calls from the pbx via SPCE to
> PSTN tear down after 30 secs.
> 
>  
> 
> The calls setup correctly but after sending a 200 OK to the pbx it
> doesn’t respond with an ACK.
> 
> Media is started after a 183 session progress and continues after the
> 200 OK is received so audio for the call is 2 way.
> 
> A number of additional 200 OKs are sent but as no ACK is received the
> PSTN gateway sends a BYE.
> 
>  
> 
> If I connect the NEC direct to the PSTN gateway ACKs are sent correctly.
> 
> There are almost no diagnostics on the NEC and their support say SPCE is
> ‘not approved device’
> 
>  
> 
> I can only imagine perhaps the ‘Record-Route:’ headers are confusing it.
> But have no way of knowing this.
> 
>  
> 
> I know this is a long shot but does anyone have any thoughts on this?
> 
>  
> 
> Regards
> 
>  
> 
> John
> 
>