Hello I have installed my new E100P card in the same machin with two TDM04B cards. I have followthe instructions on http://www.digium.com/index.php?menu=configuration#T_E100P_PRI This is my zapata.conf span=1,0,0,cas,ami fxsls=1-15,17-31 dchan=16 fxsks=32-39 loadzone = us defaultzone=us I do *modprobe zaptel wct1xxp wcfxs ans seems to work ok. * But when i do ztcfg -vvv i got Zaptel Configuration ===================== SPAN 1: CAS/ AMI Build-out: 0 db (CSU)/0-133 feet (DSX-1) Channel map: Channel 01: FXS Loopstart (Default) (Slaves: 01) Channel 02: FXS Loopstart (Default) (Slaves: 02) Channel 03: FXS Loopstart (Default) (Slaves: 03) Channel 04: FXS Loopstart (Default) (Slaves: 04) Channel 05: FXS Loopstart (Default) (Slaves: 05) Channel 06: FXS Loopstart (Default) (Slaves: 06) Channel 07: FXS Loopstart (Default) (Slaves: 07) Channel 08: FXS Loopstart (Default) (Slaves: 08) Channel 09: FXS Loopstart (Default) (Slaves: 09) Channel 10: FXS Loopstart (Default) (Slaves: 10) Channel 11: FXS Loopstart (Default) (Slaves: 11) Channel 12: FXS Loopstart (Default) (Slaves: 12) Channel 13: FXS Loopstart (Default) (Slaves: 13) Channel 14: FXS Loopstart (Default) (Slaves: 14) Channel 15: FXS Loopstart (Default) (Slaves: 15) Channel 16: D-channel (Default) (Slaves: 16) Channel 17: FXS Loopstart (Default) (Slaves: 17) Channel 18: FXS Loopstart (Default) (Slaves: 18) Channel 19: FXS Loopstart (Default) (Slaves: 19) Channel 20: FXS Loopstart (Default) (Slaves: 20) Channel 21: FXS Loopstart (Default) (Slaves: 21) Channel 22: FXS Loopstart (Default) (Slaves: 22) Channel 23: FXS Loopstart (Default) (Slaves: 23) Channel 24: FXS Loopstart (Default) (Slaves: 24) Channel 25: FXS Loopstart (Default) (Slaves: 25) Channel 26: FXS Loopstart (Default) (Slaves: 26) Channel 27: FXS Loopstart (Default) (Slaves: 27) Channel 28: FXS Loopstart (Default) (Slaves: 28) Channel 29: FXS Loopstart (Default) (Slaves: 29) Channel 30: FXS Loopstart (Default) (Slaves: 30) Channel 31: FXS Loopstart (Default) (Slaves: 31) Channel 32: FXS Kewlstart (Default) (Slaves: 32) Channel 33: FXS Kewlstart (Default) (Slaves: 33) Channel 34: FXS Kewlstart (Default) (Slaves: 34) Channel 35: FXS Kewlstart (Default) (Slaves: 35) Channel 36: FXS Kewlstart (Default) (Slaves: 36) Channel 37: FXS Kewlstart (Default) (Slaves: 37) Channel 38: FXS Kewlstart (Default) (Slaves: 38) Channel 39: FXS Kewlstart (Default) (Slaves: 39) 39 channels configured. ZT_SPANCONFIG failed on span 1: Invalid argument (22) what i'm doing wrong? thanxs in advance andres.