Guess I got your problem try to play with d channel at /etc/dahdi/system.conf as well as corresponding settings at wanpipe.
hardhdlc never worked for me, even if sangoma recommends it. libss7 use mtp2=16 !!! chan_ss7 not like at all any settings and all channels marked as bchan=1-31 !!! (yes chan_ss7 handle all signalling by himself with own stack) and you MUST turn off at wanpipe sinnalling channel like TDMV_DCHAN=0 Wish You luck! P.S: don't forget play with CRC4 along! >> span=1,1,0,ccs,hdb3,crc4 >> bchan=1-15,17-31 >> echocanceller=mg2,1-15,17-31 >> hardhdlc=16 --- Это сообщение проверено на вирусы антивирусом Avast. https://www.avast.com/antivirus -- _____________________________________________________________________ -- Bandwidth and Colocation Provided by http://www.api-digital.com -- asterisk-ss7 mailing list To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-ss7