On 2006-11-24, Phil Thompson <phil.thompson@spamcop.net> wrote:
[color=blue]
> On Fri, 24 Nov 2006 21:52:24 +0000 (UTC), Brian <bandj@o2.co.uk>
> wrote:
>[color=green]
>>Whoever he wants to contact doesn't have an
>>incoming telephone number for the Betamax service they subscribe to.[/color]
>
> they don't need one surely, put a valid phone number in that they have
> control over and connect it with the Betamax SIP ID and an enum user
> will route to the SIP ID...
>
> "ENUM with automatic PSTN fallback. People who have a PSTN phone (or a
> DID) can map that phone number to a SIP URI (for free at e164.org) --
> that mapping is called ENUM. Whenever someone calls that PSTN phone
> number from a SIP client or proxy that checks ENUM, the call goes to
> the mapped SIP URI (rather than via PSTN) and is free."[/color]

You're correct, any phone number would do. Pointing it to the SIP URI
won't get a connection though, as I believe Betamax don't at present
accept such requests from outside their network. The SIP URI could be
<username@IP_number>, which takes us back to posts earlier in this
thread.

The OP's best solution is to use a speed dial from a line which uses
his VoipCheap username and password.

Brian.