I have a TDM800P with 5 POTS lines hooked into my university's PBX. CID information is being picked up properly from phones inside the PBX, but not from phones outside. I've tried mucking with rxgain with no result, likewise cidstart and cidsignalling. The CID number shows up properly if a telephone with a CID display is plugged into one of the POTS line, whether the call is from inside the university's PBX or outside. I'm suspecting some sort of timing difference between CID information sent for calls inside the PBX, versus calls originating outside. Could anyone shoot me some links with detailed pointers on debugging such a situation? I've explored the wiki, but did not find the incarnation needed to see exactly what chan_zap is doing. Thanks, Jeff -- Jeff Bachtel (root at VPR,TAMU) http://www.cepheid.org/~jeff "The sciences, each straining in [finger jeff at cepheid.org for PGP key] its own direction, have hitherto harmed us little;" - HPL, TCoC