Hi.<br><br>I built a small lab to test asterisk-ss7.<br><br>Two boxes with quad-t1 cards, .. with two T1s on each box connected using a crossover T1 cable.<br><br>BChan 1-23, SS7 Signaling=24<br>BChan 25-47, SS7 Signaling=48<br>
<br>If I specify sigchan=24, then sigchan=48 I'm not able to make calls if I unplug the T1 carrying sigchan=24<br><br>If I specify sigchan=48, then sigchan=24, I'm not able to make calls if I unplug the T1 carrying sigchan=48.<br>
<br>When I unplug the first T1, I get..<br>[May 27 16:04:25] ERROR[23430]: chan_dahdi.c:11545 ss7_linkset: Alarm on link!<br>[May 27 16:04:25] WARNING[23430]: chan_dahdi.c:11596 ss7_linkset: MTP2 link down (SLC 0)<br><br>
or, if I unplug the second T1, it says (SLC 1)<br><br>What I would like to do, Is have two or more signaling channels over two or more T1s.<br><br>I *should* be able to unplug one of the two signaling channels, and still have calls flow between boxes, but that doesn't seem to be happening.<br>
<br><br>Any suggetions would be appreciated.<br><br>FYI; I've tried.<br>sigchan = 24<br>sigchan = 48<br><br>cicbeginswith = 1<br>channel = 1-23<br>cicbeginswith = 25<br>channel = 25-47<br><br>AND<br>sigchan = 24<br>cicbeginswith = 1<br>
channel = 1-23<br><br>sigchan = 48<br>cicbeginswith = 25<br>channel = 25-47<br><br>AND<br>cicbeginswith = 1<br>channel = 1-23<br>sigchan = 24<br><br>cicbeginswith = 25<br>channel = 25-47<br>sigchan = 48<br><br><br>Lab is as follows.<br>
<br>BOX(A)<br>Asterisk SVN-trunk-r194138<br>libss7 version: 1.0.2<br>Quad T1 Card<br><br>BOX(B)<br>Asterisk SVN-trunk-r194138<br>libss7 version: 1.0.2<br>Quad T1 Card<br><br><br>Cross Over T1 cable between BOX(A)-T1(1) ---- BOX(B)-T1(1)<br>
Cross Over T1 cable between BOX(A)-T1(2) ---- BOX(B)-T1(2)<br><br>======================<br>Both Boxes with:<br>span=1,1,0,esf,b8zs<br>bchan=1-23<br>dchan=24<br>span=2,0,0,esf,b8zs<br>bchan=25-47<br>dchan=48<br><br>======================<br>
BOX(A) chan_dahdi.conf<br>[trunkgroups]<br><br>[channels]<br>language=en<br>context=ss7<br><br>group=1<br>callgroup=1<br>signalling=ss7<br>ss7type = ansi<br>ss7_called_nai=dynamic<br>ss7_calling_nai=dynamic<br>networkindicator=national<br>
<br>;ss7_internationalprefix = 00<br>;ss7_nationalprefix = 0<br>;ss7_subscriberprefix =<br>;ss7_unknownprefix =<br>;ss7_explictacm=yes<br><br>linkset = 1<br>pointcode = 3<br>adjpointcode = 2<br>defaultdpc = 2<br><br>sigchan = 24<br>
sigchan = 48<br><br>cicbeginswith = 1<br>channel = 1-23<br>cicbeginswith = 25<br>channel = 25-47<br><br>======================<br>BOX(B) chan_dahdi.conf<br>[trunkgroups]<br><br>[channels]<br>language=en<br>context=ss7<br>
<br>group=1<br>callgroup=1<br>signalling=ss7<br>ss7type = ansi<br>ss7_called_nai=dynamic<br>ss7_calling_nai=dynamic<br>networkindicator=national<br><br>;ss7_internationalprefix = 00<br>;ss7_nationalprefix = 0<br>;ss7_subscriberprefix =<br>
;ss7_unknownprefix =<br>;ss7_explictacm=yes<br><br>linkset = 1<br>pointcode = 2 <br>adjpointcode = 3<br>defaultdpc = 3<br><br>sigchan = 24<br>sigchan = 48<br><br>cicbeginswith = 1<br>channel = 1-23<br>cicbeginswith = 25<br>
channel = 25-47<br><br>