[asterisk-biz] Can I get "forwarded from" number?

[Alistair Cunningham]

Nicky Smith wrote:
> I have an application that requires call forwarding from a public telephone
> network to a number on my Asterisk switch. I would like to capture the
> "forwarded from" number.
> 
> Has anyone see how I can get this number?
> 
> Nicky Smith

Nicky,

What protocol are you using to send the number to your Asterisk switch? 
For most protocols and switches, the original callerid should be 
preserved, and the redirecting number may be in the RDNIS (accessible as 
${CALLERID(rdnis)} in Asterisk) depending on whether the provider sets 
it or not.

Alistair Cunningham
+1 888 468 3111
+44 20 799 39 799
sip:acunningham at integrics.com
http://integrics.com/