Steve, I checked the cables by the pin outs of the writeup on the arib interface board and setup pdf and they check out ok. I have the TX led off now, In zaptel.conf I seen where fxo=2 # RX pair fxo=1 # TX pair When I changed them around and the TX led went off. I can now give the commands on the CLI> such as rpt fun 2059 *7 or rpt fun 2059 *81 and get the time in your voice and the lady's generated voice, I can also get the version play back and some of the local playbacks. But no connection to other nodes, Yes , I do have UDP 4596 port forwarded 99=cop,4 the reference tone has no play back audio nor does it keys the radio. Also recieving warning that file.c:1089 waitstream_core: Unexpected control subclass '13' Anyway, I think i'm getting close please advise. Thanks Will / W4WWM