[Asterisk-Users] problems with TDM400P

[Wim Kerkhoff]

Hi,

We have two of these 4 port FXO cards.

However, we are having some problems with incoming/outgoing calls.

The latest version of Asterisk/zaptel from CVS is being used. Voicemail,
internal SIP <-> SIP calls between Pingtel xpressa hard phones work
terrific, echotest is fine, and so on.

The zaptel and wcfxs modules load fine, and show all 8 FXO interfaces in
dmesg:

---------------------------------------------------------
Zapata Telephony Interface Registered on major 196
Freshmaker version: 63
Freshmaker passed register test
Module 0: Installed -- AUTO FXO
Module 1: Installed -- AUTO FXO
Module 2: Installed -- AUTO FXO
Module 3: Installed -- AUTO FXO
Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules)
Freshmaker version: 63
Freshmaker passed register test
Module 0: Installed -- AUTO FXO
Module 1: Installed -- AUTO FXO
Module 2: Installed -- AUTO FXO
Module 3: Installed -- AUTO FXO
Found a Wildcard TDM: Wildcard TDM400P REV E/F (4 modules)
Registered tone zone 0 (United States / North America)
Registered tone zone 0 (United States / North America)
---------------------------------------------------------

Following problems have been observed, and are preventing us from
dumping our existing Nortel Merdian PBX:

1. echo at beginning of call for several seconds, even with various
combinations of echocancel and echotraining in zapata.conf

2. even though multiple incoming lines are connected, only the first ZAP 
channel is picking up. So if
one line is in use, nobody else can call in even though there are other
lines free. When in debug mode (-gcvvv) nothing is showing up that 
there's another call coming in.

3. channels don't always hang up properly - HookState shows as offhook
for quite some time.

4. Asterisk Zap channels don't see an incoming call until 2 rings after
the existing Nortel PBX sees it. Both people calling in and people 
answering don't like that.

I've gone through whatever documentation and mailing list archives, but
haven't been able to find working solutions. Have tried various
combinations in zaptel.conf and zapta.conf but no luck yet :-(

Ideas anyone?

Thanks,

Wim