[Freeswitch-users] CISCO 2811 Freeswitch IVR

[Oliver Schenk]

I've been battling while creating an IVR using FreeSWITCH mod_managed
and connecting through a CISCO 2811. Most things now work quite well,
but I am having a few issues with the way the system answers calls (or
doesn't answer calls...).

I have FreeSWITCH running as a windows service on Windows Server 2008,
which is connected via LAN to a CISCO 2811 with a 4 port FXO card,
which is then connected to a POTS phone line.


Take the following scenario:

1. Managed .NET application creates a call string and uses ESL to talk
to freeswitch and originate a call:

string callstring =
"{bridge_answer_timeout=20,ignore_early_media=true,call_timeout=20}sofia/internal/1091234567 at 192.168.x.x
'&managed(ivrAppName)'";
eslConnection.API("originate", callstring);

where 192.168.x.x is the CISCO IP.

2. The CISCO sees that the phone number (1091234567) starts with a 1
so it uses FXO port 1 and strips the 1 and uses the remaining phone
number (091234567) to make the call.

3. My phone rings, I pick up and I can hear my IVR playing.



These are my current problems:

- IVR starts playing before I even pick up the phone. This means that
if the system calls a mobile phone and the person doesn't pick up, the
IVR will start playing and eventually the mobile phone will divert to
voice mail. Obviously I then get a missed call and an sms saying I
have a new voice mail, which is annoying. Instead I would like it to
KNOW that no one has picked up, but I don't know how to do this.
Somehow the CISCO needs to be able to tell FreeSWITCH that the call
has not yet been answered. For some reason however as soon as the
CISCO starts calling FreeSWITCH thinks the call is already connected.
It doesn't know that the CISCO is actually still ringing. Maybe I'm
doing originate the wrong way or something ...

- The phone only rings for about 10 seconds before hanging up. I've
tried "call_timeout", "bridge_answer_timeout". I've also tried setting
CISCO "ring number". Nothing works, my phone still only rings for
about 10 seconds. I don't know if this is a FreeSWITCH issue or a
CISCO issue. I'm leaning towards CISCO, because FreeSWITCH IVR just
starts playing even if no one answers the phone.





CISCO Config for relevant FXO port:

voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 no supplementary-service h450.2
 no supplementary-service h450.3
 supplementary-service h450.12
 no supplementary-service sip moved-temporarily
 no supplementary-service sip refer
 fax protocol cisco
 sip
  registrar server expires max 3600 min 3600
  no update-callerid
  no call service stop

voice-port 0/3/2
 output attenuation -3
 no comfort-noise
 cptone AU
 impedance complex1
 caller-id enable
!
dial-peer voice 100 pots
 preference 1
 destination-pattern 1T
 port 0/3/2
!



Many Thanks,

Oliver