[Asterisk-Users] Inoming caller id withheld, move to new context, possible?

[Mike Dent]

Hi,
now I've got caller id working on my BT line in the UK, I'd like to
play a different
message to those pesky sort who with hold their outgoing number.
How can I do this in my extensions.conf for my
[incoming-analog]

context?

I realise some people may call who are unable to change the way that
their system
withholds the outbound number, so I'll give them chance to leave a voice mail.

Thanks

Mike