[Asterisk-Users] x100p and groundstart signaling - help

[gabriel]

hello,
I just installed 2 brand new x100p cards into my linux system. Everything
compliled and worked fine from the first try. Hoewver the phone lines I
will use with this system have groundstart signaling. I have tried to
change the zaptel.conf and zapata.conf to use this type of signaling but
ztcfg gives me an error every time with the new configuration.
Bellow are the config files and the actual error. Again, everything works
fine with the default signaling (fxsks)

zaptel.conf
---
loadzone = us
defaultzone = us

fxsgs=1-2



zapata.conf
---
[channels]
callwaiting=yes
callwaitingcallerid=yes
threewaycalling=yes
transfer=yes
cancallforward=yes

echocancel=yes
echocancelwhenbridged=no

rxgain=0.0
txgain=0.0

immediate=no

context=default
signalling=fxs_gs
channel=1-2


and the error I am getting is:
--
[root at voip root]# ztcfg -vvv

Zaptel Configuration
======================


Channel map:

Channel 01: FXS Groundstart (Default) (Slaves: 01)
Channel 02: FXS Groundstart (Default) (Slaves: 02)

2 channels configured.

ZT_CHANCONFIG failed on channel 1: Invalid argument (22)
Did you forget that FXS interfaces are configured with FXO signalling
and that FXO interfaces use FXS signalling?
[root at voip root]#
---

I don't know why I am getting this the only choice I have is to have the
phone company change the signaling but before doing that I was thinking
that maybe somebody used this signaling before and can help.

thank you,
gabriel