YAYPM:Simple IVR

Revision as of 12:29, 1 November 2012

Here is a toy ivr. It routes calls to number 'ivr' to DumbChannel, answers them, then listens for dtms and plays back digit announcement for every dtmf. You need to provide your own digit recordings.

#!/usr/bin/python

import logging, yaypm.utils

logger = logging.getLogger('yaypm.examples')

def route(yate):
   def on_route(route):
       callid = route["id"]
       route.ret(True, "dumb/")

       def on_execute(execute):
           yate.msg("call.answered",
                    {"id": execute["targetid"],
                     "targetid": execute["id"]}).enqueue()
           logger.debug("Call %s answered." % callid)
           def on_dtmf(dtmf):
               logger.debug("Dtmf %s received." % dtmf["text"])
               yate.msg("chan.masquerade",
                   {"message" : "chan.attach",                    
                    "id": dtmf["targetid"],
                    "source": "wave/play/./sounds/digits/pl/%s.gsm" % \
                    dtmf["text"]}).enqueue()
               dtmfid = dtmf["id"]
               yate.onwatch("chan.dtmf",
                   lambda m : m["id"] == dtmfid).addCallback(on_dtmf)
               dtmf.ret(True)
           dtmf = yate.onmsg("chan.dtmf",
               lambda m : m["id"] == execute["id"])
           dtmf.addCallback(on_dtmf)            

       execute = yate.onwatch("call.execute",
           lambda m : m["id"] == callid)
       execute.addCallback(on_execute)
       yate.onmsg("call.route").addCallback(on_route)

   yate.onmsg("call.route", 
       lambda m : m["called"] == "ivr").addCallback(on_route)

if __name__ in ["__main__"]:
   logger.setLevel(logging.DEBUG)    
   yaypm.utils.setup(route)