Il 10/12/2011 8.03, Olivier ha scritto:
Yes, assuming no hardware/configuration problems this shouldn't happen > on PTP.
Can you explain why taking down layer 1 on idling spans happens on PtmP and can't happen on PTP ?
Where possible worse than my English: "ne devrait pas arriver", "généralement pas utilisés". Ok, i'd like to be sure my statement above will never misunderstood. I wanted to say that L1 deactivation in PTP provisioning is not commonly used. However, nothing prevents the telco to do so because (ETSI*) specifications allow it. The ETSI L1 specification says that "The choice to eventually deactivate is up to higher layers at the network side." without any distinction between PTP or PTMP.
I believe that the L1 deactivation in PTP is not commonly used for the sake of convenience: - PTP lines are usually provisioned for a pbx using a basic NT (no a/b ports, less power). A pbx doesn't drain power from the network so there is little to save. - PTP lines are also provisioned to share a single number or DDI spans to multiple BRI. The result of permanent L1 and a fixed TEI is a faster response from the user side, that is convenient on the network side to find and allocate a resource on incoming calls.
* ETS 300 012-1: http://tinyurl.com/bwycqcz -- _____________________________________________________________________ -- 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
