asterisk users - Feb 2004 - IAX2 Call menu handling problem with Norstar

A quick rundown of my setup...

Norstar FXS <-> X100P- Asterisk (Starlight) <-> IAX2 <->
Asterisk (Voipsrv)
<-> Cisco 7940 SIP

Now what I've done is to setup a simple menu system on my Asterisk (Voipsrv)
to allow the caller to select which extension to ring off Voipsrv. The main
benefit being that I can make the menu system pretty tight with timeouts so
that the Zaptel interface (X100P) on Starlight is hungup properly, since
there's no supervision on the Norstar.

What's _really_ got me stumped now is this. When I make a call from my
mobile phone, direct indial to the * Starlight box, the call is passed
neatly through to Voipsrv and I get the menus, can dial my extension, and
the call functions just great.

However, when someone on a internal Norstar extension dials Starlight, the
call is passed to Voipsrv, and then they get the menu, dial 1 for my
extension (Cisco 7940) and it rings. However when I answer, I cannot hear a
thing, and they cannot hear a thing!

I don't understand how a call from the internal Norstar extension can be
different from a direct indial call from the ISDN, as they both go through
the same analog port on the Norstar and the same X100P interface.

At first I figured the problem was not having an Answer line at the start of
my menu, which I've now added but still hasn't solved the problem.

I've noticed when a call comes in that was dialled from a Norstar extension,
the messages on the Voipsrv console are:

   -- Accepting AUTHENTICATED call from 192.168.0.252, requested format = 4,
actual format = 4
   -- Executing Goto("IAX2[aushot@aushot]/1",
"from-aushot|s|1") in new
stack
   -- Goto (from-aushot,s,1)
   -- Executing Answer("IAX2[aushot@aushot]/1", "") in new
stack

And when I place a call from my mobile through the Norstar's ISDN DID trunk,
and onto starlight I see the following on Voipsrv:

   -- Accepting AUTHENTICATED call from 192.168.0.252, requested format = 4,
actual format = 4
   -- Executing Goto("IAX2[aushot@aushot]/2",
"from-aushot|s|1") in new
stack
   -- Goto (from-aushot,s,1)
   -- Executing Answer("IAX2[aushot@aushot]/2", "") in new
stack

I'm wondering why the internal call seems to end with /1 and the outside
call /2?

Starlight handles the call from the X100P in the following context:

[inbound-analog]

exten => s,1,SetCallerID(917)
exten => s,2,SetCIDName(Aushot PBX)
exten => s,3,Dial(IAX2/user:pass@192.168.1.1/591)
exten => s,4,Hangup

And Voipsrv then has a direct goto on extension 591 to the following
context:

[from-aushot]

exten => s,1,Answer
exten => s,2,Background(welcome-dchaos)
exten => t,1,Playback(vm-goodbye)
exten => t,2,Hangup
exten => i,1,Playback(vm-goodbye)
exten => i,2,Hangup
exten => 1,1,Background(one-moment-please)
exten => 1,2,Dial(${PHONE1},20)
exten => 1,3,Playtones(busy)
exten => 1,4,Wait(5)
exten => 1,5,Hangup
exten => 2,1,Background(one-moment-please)
exten => 2,2,Dial(${PHONE2},20)
exten => 2,3,Playtones(busy)
exten => 2,4,Wait(5)
exten => 2,5,Hangup
exten => 3,1,Background(one-moment-please)
exten => 3,2,Dial(Zap/2,20)
exten => 3,3,Playtones(busy)
exten => 3,4,Wait(5)
exten => 3,5,Hangup

Any suggestions greatly appreciated. Before I implemented this menu system,
I had a simple direct dial to extension 501 from the starlight machine with
a timeout to stop the call going to voicemail, and this worked fine for both
internal and external calls.  

Thanks,
Chris Lee

Ok, after much stuffing around with the configs to sort it, I've narrowed
the problem down to DTMF passing from the Norstar extension as being what
breaks my setup.

If I'm on a call with someone on a Norstar extension from my system, and
they press a key, I hear a split second of the DTMF signal and the line goes
silent.

Now I've just got to figure a way to get the Norstar & Asterisk to work
together in DTMF harmony :-)
> -----Original Message-----
> From: asterisk-users-admin@lists.digium.com [mailto:asterisk-users-
> admin@lists.digium.com] On Behalf Of Christopher Lee
> Sent: Monday, 23 February 2004 1:23 PM
> To: asterisk-users@lists.digium.com
> Subject: [Asterisk-Users] IAX2 Call menu handling problem with Norstar
> 
> A quick rundown of my setup...
> 
> Norstar FXS <-> X100P- Asterisk (Starlight) <-> IAX2 <->
Asterisk
> (Voipsrv)
> <-> Cisco 7940 SIP