Asterisk and Fixed Wireless Temrinal

Hi!

We have a Nokia TFE-2 fixed wireless terminal, and I would like to use it with Asterisk.

I got Asterisk up and running, can make/receive a call using an analog land line.

But if i replace the land line with the line coming from the Nokia terminal i can’t dial. Or to be more precise, after i enter the phone number on the analog phone, asterisk waits for a while then gives busy signal.

Strange thing is, if i try a sip soft-phone, i can use the gsm line fine!!

Any ideas?

Here are my configs:

extensions.conf:
[general]
static=yes

[Incoming]
exten => s,1,Dial(Zap/1,10)

[Internal]
exten => 100,1,Dial(Zap/1,10)
exten => 200,1,Dial(SIP/gtamas,10)
exten => _XXXXXXXXXXX,1,Dial(Zap/3/${EXTEN})

zapata.conf:
[trunkgroups]
; define any trunk groups
[channels]
; hardware channels
; default
usecallerid=yes
hidecallerid=no
callwaiting=no
threewaycalling=yes
transfer=yes
echocancel=yes
echotraining=yes
; define channels
context=Internal ; Uses the [internal] context in extensions.conf
signalling=fxo_ks ; Use FXO signalling for an FXS channel
channel => 1 ; Telephone attached to port 1
channel => 2 ; Telephone attached to port 1
; define channels
context=Incoming ; Incoming calls go to [incoming] in extensions.conf
signalling=fxs_ls ; Use FXS signalling for an FXO channel
channel => 3 ; PSTN attached to port 2
channel => 4 ; PSTN attached to port 2