Hey Everyone, So this is a problem I've been having for sometime now. I sent a few messages to the list with no luck. The problem is that when people dial into the Asterisk system using DID numbers, it works the first time or 2, then I get busy signals. A friend recommended I clear out the zapata and zaptel, start over, and recreate my wanpipe stuff. He thought the problem was with the spans themselves. However, when I use the following information, and restart wanrouter, I get an error. Zapata.conf [channels] language=en context=from-pstn switchtype=national pridialplan=unknown signalling=pri_cpe faxdetect=incoming usecallerid=yes echocancel=yes echocancelwhenbridged=no echotraining=400 txgain=-6.8 rxgain=1.0 group=0 channel => 1-23 channel => 25-47 Zaptel.conf span=1,1,0,esf,b8zs span=2,1,0,esf,b8zs bchan=1-23 dchan=24 e&m=25-44 -------------ERROR---------------- Channel map: Channel 01: Clear channel (Default) (Slaves: 01) Channel 02: Clear channel (Default) (Slaves: 02) Channel 03: Clear channel (Default) (Slaves: 03) Channel 04: Clear channel (Default) (Slaves: 04) Channel 05: Clear channel (Default) (Slaves: 05) Channel 06: Clear channel (Default) (Slaves: 06) Channel 07: Clear channel (Default) (Slaves: 07) Channel 08: Clear channel (Default) (Slaves: 08) Channel 09: Clear channel (Default) (Slaves: 09) Channel 10: Clear channel (Default) (Slaves: 10) Channel 11: Clear channel (Default) (Slaves: 11) Channel 12: Clear channel (Default) (Slaves: 12) Channel 13: Clear channel (Default) (Slaves: 13) Channel 14: Clear channel (Default) (Slaves: 14) Channel 15: Clear channel (Default) (Slaves: 15) Channel 16: Clear channel (Default) (Slaves: 16) Channel 17: Clear channel (Default) (Slaves: 17) Channel 18: Clear channel (Default) (Slaves: 18) Channel 19: Clear channel (Default) (Slaves: 19) Channel 20: Clear channel (Default) (Slaves: 20) Channel 21: Clear channel (Default) (Slaves: 21) Channel 22: Clear channel (Default) (Slaves: 22) Channel 23: Clear channel (Default) (Slaves: 23) Channel 24: D-channel (Default) (Slaves: 24) Channel 25: E & M (Default) (Slaves: 25) Channel 26: E & M (Default) (Slaves: 26) Channel 27: E & M (Default) (Slaves: 27) Channel 28: E & M (Default) (Slaves: 28) Channel 29: E & M (Default) (Slaves: 29) Channel 30: E & M (Default) (Slaves: 30) Channel 31: E & M (Default) (Slaves: 31) Channel 32: E & M (Default) (Slaves: 32) Channel 33: E & M (Default) (Slaves: 33) Channel 34: E & M (Default) (Slaves: 34) Channel 35: E & M (Default) (Slaves: 35) Channel 36: E & M (Default) (Slaves: 36) Channel 37: E & M (Default) (Slaves: 37) Channel 38: E & M (Default) (Slaves: 38) Channel 39: E & M (Default) (Slaves: 39) Channel 40: E & M (Default) (Slaves: 40) Channel 41: E & M (Default) (Slaves: 41) Channel 42: E & M (Default) (Slaves: 42) Channel 43: E & M (Default) (Slaves: 43) Channel 44: E & M (Default) (Slaves: 44) 44 channels configured. ZT_SPANCONFIG failed on span 1: Invalid argument (22)