Facility IE seems to be the "ioctl" of the ISDN world. Even if you look at the intel app note, it leaves out a lot of details about what's going on. I'd love to get TBCT if anyone can find me a good, complete spec for implementing it.
Mark On Mon, 10 Nov 2003, Gene Kochanowsky wrote: > Hi Gavin, > > According to Sprint here in Tallahassee it is supported on the DMS100 for an NI2 > ISDN PRI. I am aware of the Intel tech note you refer to. You can find the code > snippit it contains spread all over the place. According to the docs it was tested > on a DMS100 using an NI2 ISDN PRI. However I have not been able to get it to work. I > need call transfer in my app and I do not want to trombone. My problem is that I can > find published specs on ISDN PRI NI2 all the way down to the facility message. After > that nothing. So I do not know if the message I am sending is correct and both > Sprint and Nortel have been useless. If anyone has done this and would care to share > what they know about it I would appreciate it. > > Gene Kochanowsky > > -----Original Message----- > From: Gavin Hollinger [mailto:[EMAIL PROTECTED] > Sent: Mon 11/10/2003 2:00 PM > To: [EMAIL PROTECTED] > Cc: > Subject: Re: [Asterisk-Users] ISDN TBCT.... > > > > TBCT (Two B Channel Transfer) would drastically reduce b-channel load in > some applications. Great for find me follow me Unified communicator type > services. Incoming calls answered on your cell phone etc. I am very > uneducated on this feature. How could I find out more about it? Does > anyone have an example of this? Does it work with Nortel? Per Intel: "this > feature is supported for the 5ESS and 4ESS protocols only" > > http://resource.intel.com/telecom/support/releases/unix51/linux51/SR5.1_Linu > x/Onldoc/html_files/gcisdn/appxis23.htm > > > Network Facility Request - Two B Channel Transfer (TBCT) (Synchronous Mode) > TBCT enables an ISDN PRI user to request the switch to connect together two > independent calls on the user's interface. The two calls can be served by > the same PRI trunk or by different PRI trunks. If the switch accepts the > request, the user is released from the calls and the two calls are connected > directly. Billing for the two original calls continues in the same manner as > if the transfer had not occurred. As an option, TBCT also allows for > transfer notification to the transferred users. > > TBCT works only when all of the following conditions are met: > > The user subscribes to TBCT (this feature is supported for the 5ESS and 4ESS > protocols only). > > The two calls are of compatible bearer capabilities. > > At least one of the two calls is answered. If the other call is outgoing > from the user, it may be either answered or alerting; if the other call is > incoming to the user, it must be answered. > > > ----- Original Message ----- > From: "Gene Kochanowsky" <[EMAIL PROTECTED]> > To: <[EMAIL PROTECTED]> > Sent: Monday, November 10, 2003 6:59 AM > Subject: [Asterisk-Users] ISDN TBCT.... > > > > Greetings, > > > > This may be a bit arcane but does anyone know what the contents of a > facility message should be for initiating a TBCT on an NI2 ISDN. I've been > trying to get it to work on a DMS100 for the last four months to no avail. > The message I am currently sending makes it to the switch but is returned > with unknown message. Perhaps someone here has done it before and can help > me out. > > > > Thanks > > > > Gene Kochanowsky > > Rǫf)+- ^+$K l r b v("oܢoj)fj b˝?j ^+$ > > _______________________________________________ > Asterisk-Users mailing list > [EMAIL PROTECTED] > http://lists.digium.com/mailman/listinfo/asterisk-users > > > _______________________________________________ Asterisk-Users mailing list [EMAIL PROTECTED] http://lists.digium.com/mailman/listinfo/asterisk-users
