>> /etc/zaptel.conf #TDM22B - 2 FXO , 2 FXS fxoks=1-2 fxsks=3-4 #TDM31B (Asterisk Dev Kit) - 1 FXO , 1 FXS fxoks=5 fxoks=6 fxoks=7 fxsks=8 # T110P PRI configuration - 30 channels span=1,1,0,esf,b8zs bchan=9-38 dchan=39 >> /etc/asterisk/zapata.conf [channels] ; connect analog phones/trunk lines to FXS ; Remember the below channels are FXS's and thats why we use FXO ; signalling signalling=fxo_ks ;group=1 context=default channel=> 1 signalling=fxo_ks group=1 context=default channel=> 2 signalling=fxo_ks group=1 context=default channel=> 5 signalling=fxo_ks group=1 context=default channel=> 6 signalling=fxo_ks group=1 context=default channel=> 7 ; connect extensions/telephones to FXO ; Remember the below channels are FXO's and thats why we use FXS ; signalling below signalling=fxs_ks callerid=asreceived context=pdr_mainmenu channel=> 3 signalling=fxs_ks group=2 callerid=8937 context=default channel=> 4 signalling=fxs_ks group=2 callerid=8938 context=default channel=> 8 ; T110P - PRI Configuration switchtype=national context=di_mainmenu signalling=pri_cpe group=3 channel => 9-38 >> Below is my module load order and the error i get when i ran the command. modprobe zaptel; modprobe wcfxo; modprobe wcfxs; modprobe wct1xxp [root@ip-pbx network-scripts]# modprobe zaptel; modprobe wcfxo; modprobe wcfxs; modprobe wct1xxp Notice: Configuration file is /etc/zaptel.conf line 168: Unable to open master device '/dev/zap/ctl' ZT_SPANCONFIG failed on span 1: Invalid argument (22) FATAL: Error running install command for wcfxs ZT_SPANCONFIG failed on span 1: Invalid argument (22) FATAL: Error running install command for wct1xxp If i run the same command again the error vanishes. [root@ip-pbx network-scripts]# modprobe zaptel; modprobe wcfxo; modprobe wcfxs; modprobe wct1xxp >> I get no information related to the T110P in /var/log/messages Dec 10 16:22:42 ip-pbx kernel: Zapata Telephony Interface Registered on major 196 Dec 10 16:22:42 ip-pbx kernel: ACPI: PCI interrupt 0000:03:01.0[A] -> GSI 48 (level, low) -> IRQ 193 Dec 10 16:22:42 ip-pbx kernel: Freshmaker version: 73 Dec 10 16:22:42 ip-pbx kernel: Freshmaker passed register test Dec 10 16:22:43 ip-pbx kernel: Module 0: Installed -- AUTO FXS/DPO Dec 10 16:22:44 ip-pbx kernel: Module 1: Installed -- AUTO FXS/DPO Dec 10 16:22:44 ip-pbx kernel: Module 2: Installed -- AUTO FXO (FCC mode) Dec 10 16:22:45 ip-pbx kernel: Module 3: Installed -- AUTO FXO (FCC mode) Dec 10 16:22:45 ip-pbx kernel: Found a Wildcard TDM: Wildcard TDM400P REV I (4 modules) Dec 10 16:22:45 ip-pbx kernel: ACPI: PCI interrupt 0000:04:02.0[A] -> GSI 19 (level, low) -> IRQ 201 Dec 10 16:22:45 ip-pbx kernel: Freshmaker version: 73 Dec 10 16:22:45 ip-pbx kernel: Freshmaker passed register test Dec 10 16:22:46 ip-pbx kernel: Module 0: Installed -- AUTO FXS/DPO Dec 10 16:22:47 ip-pbx kernel: Module 1: Installed -- AUTO FXS/DPO Dec 10 16:22:48 ip-pbx kernel: Module 2: Installed -- AUTO FXS/DPO Dec 10 16:22:48 ip-pbx kernel: Module 3: Installed -- AUTO FXO (FCC mode) Dec 10 16:22:48 ip-pbx kernel: Found a Wildcard TDM: Wildcard TDM400P REV I (4 modules) >> Output of ztcfg -vvv [root@ip-pbx network-scripts]# ztcfg -vvv Zaptel Configuration ====================== SPAN 1: ESF/B8ZS Build-out: 0 db (CSU)/0-133 feet (DSX-1) Channel map: Channel 01: FXO Kewlstart (Default) (Slaves: 01) Channel 02: FXO Kewlstart (Default) (Slaves: 02) Channel 03: FXS Kewlstart (Default) (Slaves: 03) Channel 04: FXS Kewlstart (Default) (Slaves: 04) Channel 05: FXO Kewlstart (Default) (Slaves: 05) Channel 06: FXO Kewlstart (Default) (Slaves: 06) Channel 07: FXO Kewlstart (Default) (Slaves: 07) Channel 08: FXS Kewlstart (Default) (Slaves: 08) Channel 09: Individual Clear channel (Default) (Slaves: 09) Channel 10: Individual Clear channel (Default) (Slaves: 10) Channel 11: Individual Clear channel (Default) (Slaves: 11) Channel 12: Individual Clear channel (Default) (Slaves: 12) Channel 13: Individual Clear channel (Default) (Slaves: 13) Channel 14: Individual Clear channel (Default) (Slaves: 14) Channel 15: Individual Clear channel (Default) (Slaves: 15) Channel 16: Individual Clear channel (Default) (Slaves: 16) Channel 17: Individual Clear channel (Default) (Slaves: 17) Channel 18: Individual Clear channel (Default) (Slaves: 18) Channel 19: Individual Clear channel (Default) (Slaves: 19) Channel 20: Individual Clear channel (Default) (Slaves: 20) Channel 21: Individual Clear channel (Default) (Slaves: 21) Channel 22: Individual Clear channel (Default) (Slaves: 22) Channel 23: Individual Clear channel (Default) (Slaves: 23) Channel 24: Individual Clear channel (Default) (Slaves: 24) Channel 25: Individual Clear channel (Default) (Slaves: 25) Channel 26: Individual Clear channel (Default) (Slaves: 26) Channel 27: Individual Clear channel (Default) (Slaves: 27) Channel 28: Individual Clear channel (Default) (Slaves: 28) Channel 29: Individual Clear channel (Default) (Slaves: 29) Channel 30: Individual Clear channel (Default) (Slaves: 30) Channel 31: Individual Clear channel (Default) (Slaves: 31) Channel 32: Individual Clear channel (Default) (Slaves: 32) Channel 33: Individual Clear channel (Default) (Slaves: 33) Channel 34: Individual Clear channel (Default) (Slaves: 34) Channel 35: Individual Clear channel (Default) (Slaves: 35) Channel 36: Individual Clear channel (Default) (Slaves: 36) Channel 37: Individual Clear channel (Default) (Slaves: 37) Channel 38: Individual Clear channel (Default) (Slaves: 38) Channel 39: D-channel (Default) (Slaves: 39) 39 channels configured. ZT_SPANCONFIG failed on span 1: Invalid argument (22) >> Error when starting asterisk.. == Parsing '/etc/asterisk/zapata.conf': Found Dec 10 16:26:50 WARNING[11133]: chan_zap.c:778 zt_open: Unable to specify channel 1: No such device or address Dec 10 16:26:50 ERROR[11133]: chan_zap.c:6248 mkintf: Unable to open channel 1: No such device or address here = 0, tmp->channel = 1, channel = 1 Dec 10 16:26:50 ERROR[11133]: chan_zap.c:9200 setup_zap: Unable to register channel '1' Dec 10 16:26:50 WARNING[11133]: loader.c:345 ast_load_resource: chan_zap.so: load_module failed, returning -1 == Unregistered channel type 'Tor' == Unregistered channel type 'Zap' Dec 10 16:26:50 WARNING[11133]: loader.c:440 load_modules: Loading module chan_zap.so failed!