Here's my situation: We have a Cisco VoIP system that we're very happy with, but I need to implement an IVR application on top of it. My thought is that a virtual machine running Asterisk and an AGI script would do what I need. The catch is hooking it up to the existing Cisco VoIP system so it can accept outside calls. AFAICT, some possible strategies:
- Set up the Asterisk box as a SIP Trunk that only gets used for a single extension.
- Make it a physical machine with a FXO card and use a Cisco ATA like an analog phone.
(1) is what I'd like to do, (2) is my B-plan. Am I on the right track here? What are some decent introductory resources (particularly on the Cisco-SIP side, I've got the Asterisk book, and a bunch of example config files came with the asterisk Ubuntu package)?