[Asterisk-Users] persistant call variables

[Mike Sturdee]

Are there any variables or structure elements unique to a call that stay
till the end of a call -- including when caller enters a queue and then
bridged with agent. I am trying to get some variables about the caller in
an AGI script when the agent's phone is ringing, and I'm finding not even
the queue name the caller just came from can be found. Using the callers
wait time in queue would also be useful in the AGI.

-Mike