Question on Asterisk's IVR development capabilities

Asterisk Asterisk General
1

I am new to Asterisk and am wondering how capable it is out of the box for random IVR capabilities. For example, some uses I may need to support:

  • capturing DTMF tones and responding accordingly
  • sending DTMF tones so as to interface with other IVR systems
  • recording a user’s voice, both short and longer recordings (for a custom messaging system)
  • full-duplex recording, allowing a user to record their voice while music plays
  • recognizing vocal input on-the-fly for menu navigation (or to start/stop recording)

Would I be writing a module of some sort to plug in to Asterisk to host, I assume? Which API and what documentation should I be looking at to be prepared to handle this? Finally, I assume Asterisk at least handles handing off the raw input (and streaming in audio to be output), so I wouldn’t need to edit Asterisk’s code itself to achieve the things mentioned above.

THanks!

2

Some answers are inline. You’d run these commands from the Asterisk CLI to see their usage.

core show application Read

core show application SendDTMF

One of:
core show applicaiton MixMonitor
core show application Monitor
core show application Record

This is a little trickier, you’re going to need to hook into a Speech Recognition engine such as Lumenvox.

3

Thanks davevg! Much appreciated.

If anyone else has any further ideas or references to work perhaps already done on such features, I’d be very interested.