Hi, I am configuring the ss7 with dahdi 2.6.0 and asterisk 1.8.11 (libss7-1.0.2) I am using a Digium TE220 for this. But i am getting error like: [Apr 26 14:34:19] ERROR[23230]: chan_dahdi.c:12341 mkintf: Unable to find linkset -1 [Apr 26 14:34:19] ERROR[23230]: chan_dahdi.c:16779 build_channels: Unable to register channel '280-294' Heres my config. /etc/dahdi/system.conf # Span 10: TE2/1/2 "T2XXP (PCI) Card 1 Span 2" (MASTER) HDB3/CCS/CRC4 BLUE RED span=10,10,0,ccs,hdb3,crc4 # termtype: te bchan=280-294,296-310 dchan=295 echocanceller=mg2,280-294,296-310 # Global data loadzone = us defaultzone = us /etc/asterisk/chan_dahdi.conf ss7type = itu ss7_called_nai=national ss7_calling_nai=national ;ss7_internationalprefix = 00 ;ss7_nationalprefix = 0 ;ss7_subscriberprefix = ;ss7_unknownprefix = ss7_explictacm=yes linkset = 1 pointcode = 2222 adjpointcode = 4440 defaultdpc = 4440 cicbeginswith = 1 channel = 280-294 channel = 296-310 networkindicator=national sigchan = 295 /etc/asterisk/dahdi-channels.conf ; Span 10: TE2/1/2 "T2XXP (PCI) Card 1 Span 2" (MASTER) HDB3/CCS/CRC4 BLUE RED group=0,20 context=default signalling = ss7 channel = 280-294 channel = 296-310 context = default group = 63 What could be my issue? Note: I have another 8-port Digium TE820 card which is used as PRI in the same machine. Vishnu -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-ss7/attachments/20120426/e884f17f/attachment.htm>