Thanks for the feedback. On Tue, Mar 4, 2008 at 9:17 AM, Iax <[EMAIL PROTECTED]> wrote: > Ex Vito ha scritto: > > > - Ports come down very frequenly: first L2 then L1 (see log below) > > This is a "normal" behaviour in PMP... normal mean also it's > country/telco specific. Which country? >
Portugal. The other installations I've done are PTP, same telco, Portugal Telecom. > > You *must* know this! Ask your telco for pstn lines and the alcatel guys > about the pbx config. > However generally speaking a PTP configuration on ports betwen the * box > and pbx is better. > I know that, but I'm still trying to get that info from both parties... However things seem to work configured either way. Does it make any sense ? Well, the logs show some differences which I don't really understand... > > ISDN termination is another understimated, sometimes neglected thing, > each S0 bus, i.e. a connection betwen telco NT and user TE/PBX, must be > terminated on both sides. Usually telco NT provide an internal termination. > On a single bri using short cables bus impedance mismatches are > tolerable but using more than one BRI unterminated cabling can rise to > big instability. > Sure, adequate termination is critical. But a bad enough termination would bring L1 down first, wouldn't it ? So why is L2 going down ? The logs with debug=5 seem to show nothing ! -- exvito _______________________________________________ Misdn-asterisk mailing list [email protected] http://lists.beronet.com/cgi-bin/mailman/listinfo/misdn-asterisk
