On Sat, 20 Aug 2005, Nico Giefing wrote: > how many connection do you have from your asterisk to the old pbx? > > i think on 1 ISDN connection its only possible to let 2 phones ring, because > 1 ISDN 2 channels...
This is a limitation in Asterisk, not ISDN. Asterisk reserves a B-channel for each destination at the time of the CONNECT message. In the isdn world it is common to not actually allocate a B-channel until it is needed to carry audio. This also prevents Asterisk from letting the upstream switch select the B-channel on outgoing calls to the pstn. Asterisk is written this way since it uses the audio channel as the fundamental unit, with the D-channel as carrier of signalling for the individual B-channels. Another way to view ISDN is to consider the D-channel the fundamental unit, which can carry several audio streams as a side effect of the signalling. The first viewpoint resembles the traditional view of telephony as individual circuits, the second resembles the ISDN/SS7 view of the world. Changing Asterisk to be more ISDN-like is quite a lot of work. Peter > > ----- Original Message ----- > From: "Arik Funke" <[EMAIL PROTECTED]> > To: <[email protected]> > Sent: Saturday, August 20, 2005 7:44 PM > Subject: [Asterisk-Users] Ring more than two isdn phones simultaneously > > > > I am using a HFC-S card in nt mode with zaphfc driver to connect an > > internal isdn bus. I would like to signal an incoming call on, let's > > say, 4 phones. Right now I use: > > > > Dial(Zap/g1/21&Zap/g1/22&Zap/g1/24&Zap/g1/23&Zap/g1/29,,t) > > > > where g1 are my two isdn channels provided by HFC-S card an the > > 21,22,etc my internal numbers. > > > > When the command is executed however, only the first two specified > > phones ring. Etc. with the first channel 21 ist called, with the second > > 22. How can I get asterisk to signal to all phones with just one isdn > > channel? I am trying to duplicate the setup I had with my old isdn pbx > > with did above trick just fine... Maybe somebody can help me configure > > asterisk appropriately? > > > > Cheers, > > Arik > > > > > > PS: I gave following a try but without success: > > Dial(Zap/g1/21-29,,t) > > Dial(Zap/g1/21+29,,t) > > _______________________________________________ > > 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 > Peter -- Peter Svensson ! Pgp key available by finger, fingerprint: <[EMAIL PROTECTED]> ! 8A E9 20 98 C1 FF 43 E3 07 FD B9 0A 80 72 70 AF ------------------------------------------------------------------------ Remember, Luke, your source will be with you... always... _______________________________________________ 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
