[asterisk-users] SIP To: header

[sip]

Is there a way to access the actual SIP To: header?  I know the URI is easily
accessible, and is handy for a multitude of things, but in a scenario in which
a call has been forwarded from one URI to another, it's handy to know whence
the forward was initiated (which would only be in the To: header presumably).
Ideally, I need this via AGI, but if it can be accessed anywhere at all, I can
code something up.

N.