[Asterisk-Users] Restricting outbound dialing on a specific phone

[Matt]

Hi all,

I've been through the wiki and the archives and I've been unable to find what I'm looking for.  Basically I have a phone that I don't want to be able to dial out.  I've only got one context at the moment; but from my investigations I think I might need to create another for this specific phone.

Can anyone point me in the right direction?

Thanks
Matt