Hello, I've search on the lists and google in general regarding setting up hardhdlc in /etc/zaptel.conf. Nobody sais anything about a specific configuration, except replacing "dchan" with "hardhdlc" in /etc/zaptel.conf Though, the link does not come up and I get tons of errors saying: [Feb 24 02:38:12] ERROR[14209]: chan_zap.c:8805 zt_ss7_error: [1] Received MSU in invalid state 0 [Feb 24 02:38:12] ERROR[14209]: chan_zap.c:8805 zt_ss7_error: [1] Received LSSU with length 12 longer than expected [Feb 24 02:38:12] ERROR[14209]: chan_zap.c:8805 zt_ss7_error: [1] Received LSSU with length 12 longer than expected [Feb 24 02:38:12] ERROR[14209]: chan_zap.c:8805 zt_ss7_error: [1] Received LSSU with length 12 longer than expected Is there something else that should be done on the code/patch side or on the configuration? The code is up to date with svn. The card is TE205. /etc/zaptel.conf looks like this: span = 1,1,0,ccs,hdb3 bchan=1-15 #bchan=1-31 dchan=16 #hardhdlc=16 bchan=17-31 /etc/asterisk/zapata.conf looks like this: [channels] signalling = ss7 ss7type = itu linkset = 1 context = from-dcs language = en rxgain=0.0 txgain=0.0 pointcode = 14381 adjpointcode = 14369 defaultdpc = 14369 switchtype = national networkindicator = national group = 1 sigchan = 16 cicbeginswith=1 channel=>1-15 cicbeginswith=17 channel=>17-31 Regards, Alex