> I apologise in advance if this is a silly question, as "legacy" > telephone technologies are really not my forte. > > Is there an E1 card that can provide clock source? (E.g. Make my > asterisk server look like a telco to my legacy PBX system?). > > What I am trying to achieve is the following: > > > --ISDN-------| Asterisk |-------ISDN--------| Legacy PBX |--
All E1's and T1's have an embedded clock in the transmit side of the circuit. There is no way to turn it off or on; its part of the spec. You choose whether you want to "use" the provided clocking when you configure the hardware on the end of the E1/T1. For zaptel cards, see the examples in /etc/zaptel.conf. _______________________________________________ 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