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Single Number Reach Caller ID

Hello all,

I have a situation that is confusing me slightly. I have single number reach configured correctly going out on a SIP trunk.


I can see the SIP messages on the gateway but I believe that SNR is doing what it is designed to do and sending the caller ID of the external caller back to the SIP trunk. This is then being denied by the service provider as this number is not on the SIP channel.

Is there anyway to stop SNR from sending the external caller ID and use a main number or the users own DID that is assigned to their phone.

What might confuse matters even more is this is a global dialling plan with sites in the US as well as here in the UK. With all sorts of calling transforms in place.


Any help would be great and happy to clarify anything.



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