I am going to try and use a passive AVM fritz BRI card for my * setup.. Here is the thing.. I need to order my BRI from BT.. The service that looks to be the one to use is what they call ISDN 2e becasue this has the option to setup hunt groups across multiple ISDN2e lines so I could add another line later to get 4 channels.. According to the BT website in order to use the hunt grouping across multiple lines the line has to be installed in what they call "system access" using a "T" interface which can be seen here.. http://www.bt.com/isdn/isdn2e/getting_started/line_setup.htm I have no idea what this is becasue I am not an ISDN guru.. so I am asking the question.. Can an AVM card (or 2) be setup to work in this "T" interface configuration or will I be forever limited to 1 BRI setup with an "S" interface?? Thanks.. -- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze
Well... I'm not an ISDN guru but a mere user. Though I'm sure the man in the street would consider me a guru... Be careful over ISDN2e from BT and how you order it. The following options ARE available: i) one number hunted over multiple ISDN2e lines ii) A DDI range (planning fee ?200) hunted over multiple ISDN2e lines iii) one number delivered over a single ISDN2e line iv) An MSN range (up to 10 numbers) delivered over a single ISDN2e line what is NOT available is: i) an MSN range delivered over multiple ISDN2e lines. What this means in english (!!!) is that if you want more than a single number delivered over more than one line you're into the ?200 planning fee - per number range. And if you started with a range of MSN numbers delivered on a single line, and you want those same numbers delivered over a further line or lines, in general you can forget it, since BT allocate DDI ranges from a different pool than MSN ranges (for administrative, rather than technical reasons I believe). They'll probably not be contiguous anyway, so you'd be into ?200 per number (each being a range of one !!) even if you could do it. Now.............. ISDN2e can be delivered in 2 ways - "system" AKA "point to point" or "point to multipoint". Point to multipoint allows multiple devices to be connected to the bus, and just one of them to respond to a particular number. For me, I have an Network Alchemy Cybergear Gold and an Asustek P-IN100-ST-D in one of the computers both connected to the ISDN2e line. I (currently) use isdn4linux to deflect certain calls without the 2 D channels being occupied. The Gold responds to all the MSNs bar 1, on which I am playing with * (having only discovered it a week or so ago and being MOST impressed). Point to multipoint is ONLY available on single-line ISDN2e. Once you start hunting over multiple lines, PtP is the only delivery on offer - and in this case only one item of CPE can be connected to the line. These 2 presentations are the same physical interface - it's just the signalling that differs. The Gold, for instance, has a configuration option to choose PtP or PtM. Can't remember how isdn4linux handles it though. Or even if it needs to !! See, said I wasn't a guru. Hope all this waffle helps. Oh yes, for single line you can specify PtP (System) or PtM at order time. Mike Pellatt> -----Original Message----- > From: wipeout [mailto:wipeout@linuxmail.org] > Sent: 22 May 2003 15:44 > To: asterisk-users > Subject: [Asterisk-Users] OT: BRI ISDN question > > > I am going to try and use a passive AVM fritz BRI card for my > * setup.. > > Here is the thing.. I need to order my BRI from BT.. The > service that looks to be the one to use is what they call > ISDN 2e becasue this has the option to setup hunt groups > across multiple ISDN2e lines so I could add another line > later to get 4 channels.. > > According to the BT website in order to use the hunt grouping > across multiple lines the line has to be installed in what > they call "system access" using a "T" interface which can be > seen here.. > http://www.bt.com/isdn/isdn2e/getting_started/line_setup.htm > > I have no idea what this is becasue I am not an ISDN guru.. > so I am asking the question.. Can an AVM card (or 2) be setup > to work in this "T" interface configuration or will I be > forever limited to 1 BRI setup with an "S" interface?? > > Thanks.. > -- > ______________________________________________ > http://www.linuxmail.org/ > Now with e-mail forwarding for only US$5.95/yr > > Powered by Outblaze > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
I said: [ snip ]> I (currently) use isdn4linux to > deflect certain calls without the 2 D channels being > occupied.That should, of course, have said the 2 B channels.... Mike Pellatt
Can the BT Speedway (Re-badged passive AVM) do both point to point and point to multipoint?> Hi, > > From what I have seen, BT configures point-to-point for you, and it > dependent on whether you ordered DDIs with your ISDN package or not, and > what you told them you intend to use the ISDN line for. > > We are currently testing the AVM B1 PCI V4.0 card. You can configure it for > either point to point or point to multi-point. We are currently trying to > get it to work with the latter. > > Thanks > Tan > > > ----- Original Message ----- > From: "WipeOut ." <wipeout@linuxmail.org> > To: <asterisk-users@lists.digium.com> > Sent: Thursday, May 22, 2003 3:43 PM > Subject: [Asterisk-Users] OT: BRI ISDN question > > > I am going to try and use a passive AVM fritz BRI card for my * setup.. > > Here is the thing.. I need to order my BRI from BT.. The service that looks > to be the one to use is what they call ISDN 2e becasue this has the option > to setup hunt groups across multiple ISDN2e lines so I could add another > line later to get 4 channels.. > > According to the BT website in order to use the hunt grouping across > multiple lines the line has to be installed in what they call "system > access" using a "T" interface which can be seen here.. > http://www.bt.com/isdn/isdn2e/getting_started/line_setup.htm > > I have no idea what this is becasue I am not an ISDN guru.. so I am asking > the question.. Can an AVM card (or 2) be setup to work in this "T" interface > configuration or will I be forever limited to 1 BRI setup with an "S" > interface?? > > Thanks.. > -- > ______________________________________________ > http://www.linuxmail.org/ > Now with e-mail forwarding for only US$5.95/yr > > Powered by Outblaze > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users-- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze
I would seriously consider whether to use a passive ISDN card or not. In general reports of ISDN cards indicate significant issues with delay and echo. My experience with a (very) cheap ISDN card and BT ISDN2e conforms to that. ISDN is OK if you want to use asterisk as an answering system but not so hot for live calls. Iain --On Thursday, May 22, 2003 3:31 pm +0000 "WipeOut ." <wipeout@linuxmail.org> wrote:> Can the BT Speedway (Re-badged passive AVM) do both point to point and > point to multipoint? > >> Hi, >> >> From what I have seen, BT configures point-to-point for you, and it >> dependent on whether you ordered DDIs with your ISDN package or not, and >> what you told them you intend to use the ISDN line for. >> >> We are currently testing the AVM B1 PCI V4.0 card. You can configure it >> for either point to point or point to multi-point. We are currently >> trying to get it to work with the latter. >> >> Thanks >> Tan >> >> >> ----- Original Message ----- >> From: "WipeOut ." <wipeout@linuxmail.org> >> To: <asterisk-users@lists.digium.com> >> Sent: Thursday, May 22, 2003 3:43 PM >> Subject: [Asterisk-Users] OT: BRI ISDN question >> >> >> I am going to try and use a passive AVM fritz BRI card for my * setup.. >> >> Here is the thing.. I need to order my BRI from BT.. The service that >> looks to be the one to use is what they call ISDN 2e becasue this has >> the option to setup hunt groups across multiple ISDN2e lines so I could >> add another line later to get 4 channels.. >> >> According to the BT website in order to use the hunt grouping across >> multiple lines the line has to be installed in what they call "system >> access" using a "T" interface which can be seen here.. >> http://www.bt.com/isdn/isdn2e/getting_started/line_setup.htm >> >> I have no idea what this is becasue I am not an ISDN guru.. so I am >> asking the question.. Can an AVM card (or 2) be setup to work in this >> "T" interface configuration or will I be forever limited to 1 BRI setup >> with an "S" interface?? >> >> Thanks.. >> -- >> ______________________________________________ >> http://www.linuxmail.org/ >> Now with e-mail forwarding for only US$5.95/yr >> >> Powered by Outblaze >> _______________________________________________ >> Asterisk-Users mailing list >> Asterisk-Users@lists.digium.com >> http://lists.digium.com/mailman/listinfo/asterisk-users >> >> >> _______________________________________________ >> Asterisk-Users mailing list >> Asterisk-Users@lists.digium.com >> http://lists.digium.com/mailman/listinfo/asterisk-users > > -- > ______________________________________________ > http://www.linuxmail.org/ > Now with e-mail forwarding for only US$5.95/yr > > Powered by Outblaze > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users >
The feedback I got from Kapejod is that the new version os cah_capi is significantly better with regard to both latency and echo with passive cards.. Has anyone got any comments on this using the new version of chan_capi??> > I would seriously consider whether to use a passive ISDN card or not. In > general reports of ISDN cards indicate significant issues with delay and > echo. My experience with a (very) cheap ISDN card and BT ISDN2e conforms > to that. ISDN is OK if you want to use asterisk as an answering system but > not so hot for live calls. > > Iain > > > > > --On Thursday, May 22, 2003 3:31 pm +0000 "WipeOut ." > <wipeout@linuxmail.org> wrote: > > > Can the BT Speedway (Re-badged passive AVM) do both point to point and > > point to multipoint? > > > >> Hi, > >> > >> From what I have seen, BT configures point-to-point for you, and it > >> dependent on whether you ordered DDIs with your ISDN package or not, and > >> what you told them you intend to use the ISDN line for. > >> > >> We are currently testing the AVM B1 PCI V4.0 card. You can configure it > >> for either point to point or point to multi-point. We are currently > >> trying to get it to work with the latter. > >> > >> Thanks > >> Tan > >> > >> > >> ----- Original Message ----- > >> From: "WipeOut ." <wipeout@linuxmail.org> > >> To: <asterisk-users@lists.digium.com> > >> Sent: Thursday, May 22, 2003 3:43 PM > >> Subject: [Asterisk-Users] OT: BRI ISDN question > >> > >> > >> I am going to try and use a passive AVM fritz BRI card for my * setup.. > >> > >> Here is the thing.. I need to order my BRI from BT.. The service that > >> looks to be the one to use is what they call ISDN 2e becasue this has > >> the option to setup hunt groups across multiple ISDN2e lines so I could > >> add another line later to get 4 channels.. > >> > >> According to the BT website in order to use the hunt grouping across > >> multiple lines the line has to be installed in what they call "system > >> access" using a "T" interface which can be seen here.. > >> http://www.bt.com/isdn/isdn2e/getting_started/line_setup.htm > >> > >> I have no idea what this is becasue I am not an ISDN guru.. so I am > >> asking the question.. Can an AVM card (or 2) be setup to work in this > >> "T" interface configuration or will I be forever limited to 1 BRI setup > >> with an "S" interface?? > >> > >> Thanks.. > >> -- > >> ______________________________________________ > >> http://www.linuxmail.org/ > >> Now with e-mail forwarding for only US$5.95/yr > >> > >> Powered by Outblaze > >> _______________________________________________ > >> Asterisk-Users mailing list > >> Asterisk-Users@lists.digium.com > >> http://lists.digium.com/mailman/listinfo/asterisk-users > >> > >> > >> _______________________________________________ > >> Asterisk-Users mailing list > >> Asterisk-Users@lists.digium.com > >> http://lists.digium.com/mailman/listinfo/asterisk-users > > > > -- > > ______________________________________________ > > http://www.linuxmail.org/ > > Now with e-mail forwarding for only US$5.95/yr > > > > Powered by Outblaze > > _______________________________________________ > > Asterisk-Users mailing list > > Asterisk-Users@lists.digium.com > > http://lists.digium.com/mailman/listinfo/asterisk-users > > > > > > > _______________________________________________ > Asterisk-Users mailing list > Asterisk-Users@lists.digium.com > http://lists.digium.com/mailman/listinfo/asterisk-users-- ______________________________________________ http://www.linuxmail.org/ Now with e-mail forwarding for only US$5.95/yr Powered by Outblaze