[Spce-user] NEC SL 1100 pbx

John Murray john.murray at skyracktelecom.com
Mon Feb 11 16:34:09 EST 2013


Andrew,

Thanks for the advice.

I tried that but still the same result.

Any other thoughts anyone?

BTW. When changing the internal address as described please be aware any
statically configured (permanent) contacts for users will NOT get updated
and will still send to -> 127.0.0.1:5060 until you delete and re-add them.

Regards

John

-----Original Message-----
From: Andrew Pogrebennyk [mailto:apogrebennyk at sipwise.com] 
Sent: 10 February 2013 11:08
To: John Murray
Cc: spce-user at lists.sipwise.com
Subject: Re: [Spce-user] NEC SL 1100 pbx

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_workaro
und

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
> 
> 





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