Hell All, I am using: Asterisk 1.6.2.10 Libss7 1.0.2 Latest DAHDI and Wanpipe from Sangoma I two T1's from the Siemens each with an F link connected to two different T1. Our Siemens guy is telling us that we need to set the Link Code on the second box to 1. I set slc=1 in chan_dahdi.conf on the second box, but it doesn't seem to make a difference, the link just keeps flapping: [Sep 1 15:49:16] WARNING[18441]: chan_dahdi.c:11640 ss7_linkset: MTP2 link down (SLC 0) MTP2 link up (SLC 0) Looks to me like slc setting in chan_dahdi.conf is ignored. Any Ideas? -stephan Here is my dahdi system.conf: loadzone=us defaultzone=us #Sangoma A104 port 1 [slot:4 bus:3 span:1] <wanpipe1> span=1,1,0,esf,b8zs bchan=2-24 mtp2=1 echocanceller=mg2,2-24 And here is chan_dahdi.conf: [trunkgroups] [channels] context=default usecallerid=yes hidecallerid=no callwaiting=yes usecallingpres=yes callwaitingcallerid=yes threewaycalling=yes transfer=yes canpark=yes cancallforward=yes callreturn=yes relaxdtmf=yes rxgain=0.0 txgain=0.0 group=1 callgroup=1 pickupgroup=1 immediate=no ;Sangoma A104 port 2 [slot:4 bus:3 span:1] <wanpipe1> switchtype=national context=from-pstn group=0 echocancel=yes signaling=ss7 ss7type=ansi ss7_called_nai=dynamic ss7_calling_nai=dynamic ss7_internationalprefix=00 ss7_nationalprefix=0 ss7_subscriberprefix= ss7_unknownprefix= ss7_explictacm=yes pointcode=1-1-1 adjpointcode=5-9-192 defaultdpc=5-9-192 networkindicator=national ;NI value for MTP3 linkset=1 slc=1 sigchan=1 cicbeginswith=1 channel=2-24 -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-ss7/attachments/20100901/2351940b/attachment.htm