2008/12/17 Andrew Thomas <[email protected]> > I have piggy backed a few PBX's off the back of a B410P (4 x BRI) card with > no problems. The ones I used for testing were the Avaya IP Office, Siemens > Hi-Path/Hi-Com and various old Panasonics. > > All I had to do was to turn on the 100ohm termination on my S0 ports (set > as NT on the B410P of course). > > I actually have a similar set-up at the moment on our main asterisk system. > 2 x BRI trunks (ports 1 & 2 set as TE ptp - for the DDI's etc) and 2 x BRI > S0 bus (ports 3 & 4 set as NT ptmp) running and ISDN modem on each (good old > Fritz! ones).
Fine, so, using this setup as an example, would say the norm in the UK, is to connect to ISDN-BRI in ptp (reading from ports 1 and 2 configuration), or to connect using ptmp (reading from ports 3 and 4 configuration, dedicated to isdn modems) ? > > So it is possible to run ptmp on NT ports using mISDN - just remember to > turn on 100ohm termination on the ISDN card if you only have one device per > port. > > HTH > Andy > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of Olivier > Sent: 17 December 2008 09:08 > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: Re: [asterisk-users] libpri and NT-Point to multi-point > > Hello Andrew, > 2008/12/17 Andrew Thomas <[email protected]> > If you are connecting to BRI lines then you should be TE - not NT. > > Yes of course, you're right. > > I was mostly referring to this : > ISDN ------<BRI> ---- asterisk -----<BRI>----- legacy PBX > > Then, in this case, as legacy PBX has a set of TE-PtmP or TE-PtP > interfaces, asterisk box should also include such NT-PtP or NT-PtmP > interfaces. > > For instance, would you say that in the UK, most PBXes are using TE-PtP ? > > > You can run as TE ptp or ptmp with mISDN (not sure about DAHDI yet - not > tried the new release). > > HTH > > > > -----Original Message----- > From: [email protected] [mailto: > [email protected]] On Behalf Of Olivier > Sent: 17 December 2008 08:14 > To: Asterisk Users Mailing List - Non-Commercial Discussion > Subject: [asterisk-users] libpri and NT-Point to multi-point > > Hi, > > At the moment, libpri /w Asterisk 1.6, Dahdi 2.1, is not supporting > NT-Point to multi-point mode. > Here (France), most small PBXes are connected to ISDN through BRI trunks in > PtmP (don't know why but it seems the general case). > So this NT-PtmP function would be very helpful to easily slide an Asterisk > box between an existing PBX and the network. > > Does the same case apply elsewhere (UK, Germany, Italy, ...) ? > Do you think this is needed ? > > Regards > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users > > > _______________________________________________ > -- Bandwidth and Colocation Provided by http://www.api-digital.com -- > > asterisk-users mailing list > To UNSUBSCRIBE or update options visit: > http://lists.digium.com/mailman/listinfo/asterisk-users >
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