[asterisk-users] Generating a different countries ringtone on a per call basis

[Gareth Blades]

We can use the Dial() command with the 'r' option in order to generate 
the UK ringtone (as we are UK based the default is UK).
How do we generate a USA ringtone for example?

I have tried setting the CHANNEL(language) and CHANNEL(tonezone) to 'us' 
(and calling Progress() beforehand) and although this works for 
Playtones() the Dial command still continues to play the UK ringtone.

Any ideas?

Thanks
Gareth