TDM2400P Problem

Asterisk Asterisk Support
1

I have the problem with TDM2414E card (16FXO & 4 FXS with echo cancellation). I have already connected to the asterisk server and loaded wctdm24xxp module. When I connect the phone to FXS port, It gets the dial tone but I cannot dial to any number (I can press the phone button but nothing happens even the busy tone). There is no activity in the asterisk CLI. It just prints

asterisk*CLI> set verbose 10
Verbosity was 5 and is now 10
– Starting simple switch on ‘Zap/52-1’
– Hungup ‘Zap/52-1’

And also the FXO port, It is connected with NEC line. I(Asterisk) can dial to the party(NEC), they can hear all my voice but I cannot hear anythings from them.

How can I fix these problem? Are there any specific configuration for TDM2400P card?

Thanks for your help.

Thawat

This is my configuration:
Zaptel.conf
loadzone = us
defaultzone = us
#Digium Wildcard TE110P T1/E1 Card
span=1,1,0,ccs,hdb3,crc4,yellow
bchan=1-15,17-31
dchan=16
#Wildcard TDM2400P Prototype Board
fxsks=32-47
fxoks=52-55

Zapata.conf
[channels]
language=en
context=from-pstn
switchtype=euroisdn
pridialplan=unknown
signalling=pri_cpe
usecallerid=yes
hidecallerid=no
callwaiting=no
callwaitingcallerid=no
threewaycalling=yes
transfer=yes
echocancel=yes
rxgain=0.0
txgain=0.0
group=1
callgroup=1
pickupgroup=1
immediate=no
callprogress=no
callerid=asreceived

; TE110P T1/E1 Card
group=1
signalling=pri_cpe
context=from-pstn
channel => 1-15,17-31; TDM2400 Card
group=2
signalling=fxs_ks
context=from-nec
callerid=asreceived
channel => 32-47

; TDM2400 Card
group=3
relaxdtmf=yes
signalling=fxo_ks
context=from-fxs
callerid=asreceived
channel => 52-55

Extension.conf
.
.
.
[from-fxs]
exten => _[12]X.,1,Dial(${TRUNK_NEC}/${EXTEN},30,r)
exten => _[12]X.,2,Hangup
.
.
.

2

Your setup looks good. You might try calling digium tech support with help on this install configuration issue.

3

I found the strange thing. The LED on the echo cancellation module was blink. After I removed the echo cancellation module, everythings worked fine. I think I might have some incorrects configuration for this card. Or it needs the specific configuration for the echo cancellation module.

The card can work properly without the echo cancellation module but if I plug this module in, it cannot work.

Please advice?

4

thawat: I’ve had issues with the echo cancellation card also. The first 2400e I installed had HORRIBLE audio problems that we fought with for about 2 days before I ended up yanking the module. After that things worked just fine. Sounds like they’ve got some bad hardware in the channel.

5

Now I put the echo cancellation card back to the TDM card and have disabled the hardware echo cancellation by adding “vpmsupport=0” parameter when loading wctdm24xxp kernel module.

It’s still working.

That’s terrible, I buy the card with echo cancellation module but cannot use it.

6

Digium has changed the new VPM module for me. Now it’s no problem.

Thawat

7

I had audio issue with the digium echo can. After removed it everything was fine.