I had a weird (unforeseen) situation today. We have a remote office with an * server and ISDN 10 service. We connect to each other over an IAX trunk with G729. Today, some of Sydney experienced a power surge which knocked out their ISDN services. Without a clock source on their PRI card, my IAX calls to them resulted in one-way audio (they could hear me, but I not them). Is it possible to load *both* the relevant card driver *and* ztdummy to guard against this occurrance?
What kind of card are they using? Is there only 1 telco circuit? If so, then I'm thinking their card should have detected the loss of service and switched to it's internal clock. Do they have a secondary clock source available across another circuit? Perhaps a tie line to a pbx that can be configured as a secondary? -----Original Message----- From: Rod Bacon Sent: Thu, June 23, 2005 12:03 am I had a weird (unforeseen) situation today. We have a remote office with> an * server and ISDN 10 service. We connect to each other over an IAX > trunkwith G729. Today, some of Sydney experienced a power surge which knocked out their> ISDN services. Without a clock source on their PRI card, my IAX calls to > themresulted in one-way audio (they could hear me, but I not them). Is it possible to load *both* the relevant card driver *and* ztdummy to> guard against this occurrance?_______________________________________________ Asterisk-Users mailing list Asterisk-Users@lists.digium.com http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
In case anyone is interested, loading Ztdummy AND a card driver at the same time will result in unpredictable timing issues. We heard intermittent echo/feedback on PRI channels. Rod Bacon wrote:> I had a weird (unforeseen) situation today. We have a remote office with > an * server and ISDN 10 service. We connect to each other over an IAX > trunk with G729. > > Today, some of Sydney experienced a power surge which knocked out their > ISDN services. Without a clock source on their PRI card, my IAX calls to > them resulted in one-way audio (they could hear me, but I not them). > > Is it possible to load *both* the relevant card driver *and* ztdummy to > guard against this occurrance? > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > >