asterisk users - Jun 2008 - Telco MWI with Asterisk 1.6-beta9

I've been trying to get Telco MWI to work with asterisk 1.6.  I'm 
currently using the beta9 version.  I haven't been able to get this new 
feature working on any 1.6 beta release version.

I've turned on the full asterisk debug:

logger.conf:
full => notice,warning,error,debug,verbose

The only MWI related debug information I get is:
Jun 20 16:56:22] DEBUG[1917] chan_zap.c: Maybe some MWI on port 4!

I get these message sporadically, whether or not there is an actually 
MWI voice mail message waiting.

My Telco service is Verizon FIOS.  I know that MWI is working, because 
if I pick up an analog phone set attached to the line, I can hear the 
stutter tone.

Can anyone explain what might be going wrong?

My zapata.conf has these relevant entries:

; PSTN connected here
;immediate=no
;busydetect=yes
;busycount=8
;musiconhold=default
mailbox=100
mwimonitor=fsk
mwilevel=512
mwimonitornotify=/usr/local/sbin/zapnotify.sh
faxdetect=incoming
signalling=fxs_ks
context=incoming
channel => 4

For mwimonitor, I've tried different values of "y",
"yes", "fsk",
"neon".  None of them have any different results.

I've tried lower values for mwilevel too, nothing seems to work.

Is there additional debugging I can turn on in the chan_zap.c source code?

Thanks,

Jim

Jim Duda wrote:
> My Telco service is Verizon FIOS.  I know that MWI is working, because 
> if I pick up an analog phone set attached to the line, I can hear the 
> stutter tone.
The MWI detection in chan_zap/chan_dahdi is not for stutter tone; it
supports either FSK MWI pulses (slimier to Caller ID, but transmitted
during idle times on the line), or neon-style pulses of AC.

Unless your telco service specifically supports phones that can display
whether you have new messages (and how many), you don't have the right
kind of MWI signaling from the telco. It is doubtful that *any*
residential phone service will work in the way that chan_zap is
expecting; FSK and neon MWI signaling are generated by legacy PBX
systems with analog ports, not telco (CO) switches.

-- 
Kevin P. Fleming
Director of Software Technologies
Digium, Inc. - "The Genuine Asterisk Experience" (TM)