In laymans terms. To use your telco's T-1 as the timing source ....
span=1,1,0,esf,b8zs,yelllow To use the internal clock of the card you would use (I'm pretty sure that this would only be used for channel banks, or connections to other PBX hardware. I don't think a telco is going to use your PBX as a timing source) span=1,0.0,esf,b8zs,yellow If you have multiple telco connections on multiple spans you would have something like this span=1,2,0,esf,b8zs,yellow (secondary time source) span=2,1,0,esf,b8zs,yellow (primary time source) span=3,0,0,esf,b8zs,yellow (provide the time source, i.e. channel bank) -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Behalf Of [EMAIL PROTECTED] Sent: Monday, April 12, 2004 9:39 PM To: [EMAIL PROTECTED] Subject: Re: [Asterisk-Users] T100P / ZAP / PRI errors Now you've got me utterly confused ... So, in layman's terms, if I connect a T100P to a circuit provided by the Telco, and the Telco says that they will provide timing, I have to put WHAT? span=1,0,0,esf,b8zs,yellow this means '0' this span is not a sync source, i.e. the Telco will provide my 8kHz. Could one use '2' with impunity (span=1,2,0,...)? I am still not clear under which circumstances one should use '0' versus '2'. WW ----- Original Message Follows ----- > Holy crap people, trim your replies! > > > You didn't say what's at the other end of your PRI line, > > but you might try having the other end be the timing > > sync source. Try: span=1,0,0,esf,b8zs instead. Maybe > that will help. > > We need to get this documented *clearly* once and for all. > > Zaptel T1/E1 hardware either free-runs to its own internal > 8kHz time source, or it tries to lock to the recovered > clock from the line. > > Zapata.conf says that timing of 0 means "do not use this > span for timing." Zero does not mean "slave timing", it > means not to use this span as a recovered clock source > for timing at all. Timing values of 1 or 2 mean try to > lock the internal clock to the recovered clock from the > span. > > A value of 0 means that this span's recovered clock never > gets used as a timing source. A value of 1 means that > this span is the primary clock source -- If the span is > up, try to lock the internal clock to the clock recovered > from this span. A value of 2 means to use this span for > timing only if the primary span is down. > > To reiterate: a value of 0 means that the other end must > be locking to the zaptel's clock or else clock slips will > occur. > > Feel free to correct me if I'm wrong, but I am pretty sure > I have this right. :-) > > Regards, > Andrew > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users Willy Wouters ypOne Publishing _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users To UNSUBSCRIBE or update options visit: http://lists.digium.com/mailman/listinfo/asterisk-users
