Matt wrote:[color=blue]
> My phone is registering ok - it shows on the telephony screen. Since my
> original post, I've upgraded the firmware. Having done that, the message I
> get when making a call is "VOIP Status code: 400". Before the upgrade is
> was "Not available".[/color]


400 means bad request.

What kind of router do you have?

Maybe there is a SIP ALG in your router that is mangling the SIP on the
way through.

Tim