I double-checked with other locations (also using Patton devices and I didn't get any complain). I can find the same pattern everywhere:
2013-12-11T20:17:39 : LOGINFO : Link down on interface bri 0 0 0 2013-12-11T20:17:39 : LOGINFO : Link down on interface ISDN 0 0 2013-12-11T20:18:11 : LOGINFO : Link up on interface bri 0 0 0 2013-12-11T20:18:11 : LOGINFO : Link up on interface ISDN 0 0 2013-12-11T20:18:14 : LOGINFO : Link down on interface bri 0 0 0 2013-12-11T20:18:15 : LOGINFO : Link down on interface ISDN 0 0 2013-12-11T20:18:18 : LOGINFO : Link up on interface bri 0 0 0 2013-12-11T20:18:18 : LOGINFO : Link up on interface ISDN 0 0 2013-12-11T20:21:14 : LOGINFO : Link down on interface bri 0 0 1 2013-12-11T20:21:15 : LOGINFO : Link down on interface ISDN 0 1 2013-12-11T20:21:46 : LOGINFO : Link up on interface bri 0 0 1 2013-12-11T20:21:46 : LOGINFO : Link up on interface ISDN 0 1 2013-12-11T20:21:49 : LOGINFO : Link down on interface bri 0 0 1 2013-12-11T20:21:49 : LOGINFO : Link down on interface ISDN 0 1 2013-12-11T20:21:53 : LOGINFO : Link up on interface bri 0 0 1 2013-12-11T20:21:53 : LOGINFO : Link up on interface ISDN 0 1 2013-12-11T20:37:39 : LOGINFO : Link down on interface bri 0 0 0 2013-12-11T20:37:39 : LOGINFO : Link down on interface ISDN 0 0 2013-12-11T20:38:11 : LOGINFO : Link up on interface bri 0 0 0 2013-12-11T20:38:11 : LOGINFO : Link up on interface ISDN 0 0 2013-12-11T20:38:13 : LOGINFO : Link down on interface bri 0 0 0 2013-12-11T20:38:13 : LOGINFO : Link down on interface ISDN 0 0 2013-12-11T20:38:13 : LOGINFO : Link up on interface bri 0 0 0 2013-12-11T20:38:14 : LOGINFO : Link up on interface ISDN 0 0 2013-12-11T20:41:14 : LOGINFO : Link down on interface bri 0 0 1 2013-12-11T20:41:14 : LOGINFO : Link down on interface ISDN 0 1 2013-12-11T20:41:46 : LOGINFO : Link up on interface bri 0 0 1 2013-12-11T20:41:46 : LOGINFO : Link up on interface ISDN 0 1 2013-12-11T20:41:49 : LOGINFO : Link down on interface bri 0 0 1 2013-12-11T20:41:49 : LOGINFO : Link down on interface ISDN 0 1 2013-12-11T20:41:53 : LOGINFO : Link up on interface bri 0 0 1 2013-12-11T20:41:53 : LOGINFO : Link up on interface ISDN 0 1 So it seems common from Telco to turn ISDN lines going down and up, once in while and this is not for energy savings. 2013/12/11 jg <webaccou...@jgoettgens.de> > >> At the moment, I'm having trouble with lines going up and down all day >> long. >> I asked them to be created as P2P. >> Mostly but not always calls are passing in and out correctly. >> > I doubt that the energy-saving is causing the trouble. How do you get the > ISDN-signal? Is it an S0-bus? If yes, I may be able to be of further help. > Even if the connection goes down, it should not matter for P2MP > connections. But S0-bus problems can be nasty (though seen rarely these > days). > > >> So, if I'm not mistaken, either : >> - these lines are configured as P2MP (and not as P2P as required), >> - I'm facing something else I've never met before. >> > I would bet on the 2nd choice. > > >> As these lines are up most of the time, I'm having a hard time to get any >> useful help by Telco beside "level 1" basic checks. >> >> For the record, these lines are terminated on my side with a Patton >> smartnode (most of the time, I use Digium BRI boards). >> During off hours, I'll try to check what happens when toggling to P2MP >> mode. >> > I doubt that you do get anything useful if you pick the wrong mode. > > Are you sure that your are not dealing with termination issues? Try > sending a T.30 fax with fine resolution and ecm enabled when your > connection is up. If it takes too long or fails, this is something to look > at. > > > jg > > > -- > _____________________________________________________________________ > -- 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 >
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