In message of Wed, 14 Sep 2005, Julius writes
>
>> On PSTN lines, yes. VoIP isn't the PSTN. No two SIP ID's on the same
>> network can be the same
>
>Oh I know and understand that, but if they are using the4 last seven
>digits without pre-cautions to ensure uniqueness, this could be a
>problem.
>

They are not. This discussion has been on here before.

I have two Bristol numbers where the last seven digits are the and I
also have a Devizes number ( on a new account) and the 7 digit SIP
number is COMPLETELY different.

David