[root@nexus root]# lsmod 
Module                  Size  Used by
zaptel                241412  0 
crc_ccitt               1985  1 zaptel
vfat                   12481  0 
fat                    39393  1 vfat
snd_pcm_oss            43129  0 
snd_mixer_oss          14017  1 snd_pcm_oss
snd_intel8x0           30829  0 
snd_ac97_codec         58821  1 snd_intel8x0
snd_pcm                83529  2 snd_pcm_oss,snd_intel8x0
snd_timer              25413  1 snd_pcm
snd_page_alloc          8393  2 snd_intel8x0,snd_pcm
gameport                4033  1 snd_intel8x0
snd_mpu401_uart         7361  1 snd_intel8x0
snd_rawmidi            21733  1 snd_mpu401_uart
snd_seq_device          6473  1 snd_rawmidi
snd                    45477  9 snd_pcm_oss,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore               7713  1 snd
md5                     3905  1 
ipv6                  217349  12 
parport_pc             21249  1 
lp                      9133  0 
parport                35977  2 parport_pc,lp
autofs4                20677  0 
sunrpc                141861  1 
e100                   34373  0 
mii                     3777  1 e100
floppy                 54001  0 
sg                     28513  0 
scsi_mod              105360  1 sg
microcode               5601  0 
dm_mod                 47317  0 
uhci_hcd               28505  0 
ext3                   96937  2 
jbd                    66521  1 ext3


[root@nexus root]# modprobe wcfxo
ZT_CHANCONFIG failed on channel 1: No such device or address (6)
FATAL: Error running install command for wcfxo

[root@nexus root]# ztcfg -vvv

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


Channel map:

Channel 01: FXO Kewlstart (Default) (Slaves: 01)
Channel 02: FXS Kewlstart (Default) (Slaves: 02)
Channel 03: FXS Kewlstart (Default) (Slaves: 03)
Channel 04: FXS Kewlstart (Default) (Slaves: 04)

4 channels configured.

ZT_CHANCONFIG failed on channel 1: No such device or address (6)