Olivier
2011-Jun-23 09:01 UTC
[asterisk-users] How to set BRI-to-BRI trunk using 2 HA8+B400M cards [SOLVED]
2011/6/22 Richard Mudgett <rmudgett at digium.com>> > The link between the Asterisk boxes must not be terminated on both > > ends. Termination resistors on both ends is practically guaranteed > > to cause link issues. > > > > > > Very interesting but I'm afraid I still don't get it. > > > > For various reasons, my goal is build an asterisk + patton solution > > that will be later plugged into 8 BRIs like this (hoping my ASCII art > > will work) : > > > > Patton ------------ x4 BRI ----------------PSTN > > | | > > | | > > Asterisk1 -------- x4 BRI-------------------- > > Connections like this? > Patton ------ x4 BRI --- PSTN > Asterisk1 --- x4 BRI --- PSTN > Asterisk1 --- BRI?? ---- Patton >Asterisk1----- <SIP>----- Patton> (Cross link between Asterisk1 and Patton (Beware of potential clock loop)) > > > > > The box Asterisk2 ast I referred to it previously, is here to behave > > as the PSTN. > > As a consequence, I tought that : > > 1. I should set each Asterisk2 port as NT/PTP. > > The NT/PTP port should not have termination resistors enabled. > > Richard > > -- > _____________________________________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > New to Asterisk? Join us for a live introductory webinar every Thurs: > http://www.asterisk.org/hello > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >Theorically, does the order with which cables are plugged into a box matters (as fas as Termination setting is concerned) ? I'm asking because, thanks to your advice, it is working today tough the same settings (it seems) failed yesterday. For reference, here are my settings: AST1 ----<BRI>---- AST2 ----<BRI>---- Patton AST1: span=1,1,0,ccs,ami,term,te signalling = bri_cpe AST2 (port1 to AST1): span=1,0,0,ccs,ami,term,nt signalling = bri_net AST2 (port2 to Patton): span=2,0,0,ccs,ami,nt signalling = bri_net Other experimental findings: When connecting one Asterisk box in NT mode to a single box (either an Asterisk box or a Patton), is does work no matter how termination is se (for this NT box). When connecting one Asterisk box in NT mode to 2 boxes (an Asterisk box and a Patton), then termination settings matter. Anyway, thank you very much for your help. -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.digium.com/pipermail/asterisk-users/attachments/20110623/f07831cb/attachment.htm>