IVR testing

With the ability to send digits the program is an easy way to test Interactive Voice Response systems and PBXs. The first scenario makes an outgoing call, establishes a two-way speech path, waits 9 seconds, dials a random 7-digit number and waits 11 seconds so all digits are sent before it hangs up. The second one dials fixed digits:

---> INVITE
<--- 100*
<--- 180
<--- 200
---> ACK
---- RTP Speech
---- Pause[ms]=9000
---- rndVal=rand[1000000-9999999]
---- Dial=[$rndVal]
---- Pause[ms]=11000
---> BYE
<--- 200

---> INVITE
<--- 100*
<--- 180
<--- 200
---> ACK
---- RTP Speech
---- Pause[ms]=9000
---- Dial=123456;PT=101
---- Pause[ms]=11000
---> BYE
<--- 200

Besides random values the digits can come from the values file ([field0]) or be auto-incremented. The sample is Call_speech_dials_client.txt (it needs a sound device because it uses live speech).