[Dec 23 17:58:49] ERROR[3091]: chan_dahdi.c:8413 dahdi_pri_error: XXX Missing handling for mandatory IE 12 (cs0, Connected Number) XXX I am seeing the above error on DAHDI 2.1.0, asterisk 1.4.22 and libpri 1.4.7 I am using a TE120P card. I am also getting this VERY frequently: -- Channel 0/1, span 1 got hangup request, cause 16 -- Hungup 'DAHDI/0-1' Versus a normal hangup: == Spawn extension (smvoice-dialout, smvoice_callprogress, 4) exited non-zero on 'DAHDI/1-1' -- Hungup 'DAHDI/1-1' system.conf: loadzone=us defaultzone=us span=1,1,0,esf,b8zs bchan=1-3 dchan=24 chan_dahdi.conf: [channels] switchtype=national signalling=pri_cpe echocancel=yes echocancelwhenbridged=yes echotraining=400 callerid=asreceived context=smvoice-incoming group=1 channel => 1-3 I was using zaptel 1.4.12.1 before using DAHDI and was getting the same thing. Sometimes is appears to work fine - other times I get these SPURIUOS hangups. Jerry