[NTLUG:Discuss] Off-Topic - ISDN Phones

[Greg E]

Eric,

What I was planning on running was the ISDN (4 wire as installed by
GTE) into the house and throughout.  1 jack would have a Pipeline 75
UBRI NI1 router connected to a Linux server, 1 analog phone, and maybe
1 fax.  2 jacks connected to ISDN phones.  All 3 jacks will be RJ45.
As I understand all the ins and outs this will give me 2 spins and I'm
having them bonded so I can do Bandwidth-On-Demand.  The phones will
give me 1 spin so that anytime I connect the 2nd spin will renegotiate
down to 64K until the phone is dropped and then back upto 128K.

As I understand it I can also have more numbers added on the same 
circuit (upto 5 total) and the phones and T/A can be configured to
differentiate between the number called.

Does this sound right to you?

Greg E


Eric Schnoebelen wrote:
> 
>         Actualy, the LEC's (local exchange carriers, aka, GTE,
> SWBT, for the uninitiated) provide U (2 wire) interface BRI's.  The U
> interface can be converted to S/T (4 wire) interfaces with an
> NT1.
> 
>         Given the U interface is dominate in the US, most
> products manufactured and distributed in the US support the U
> interface directly, embedding the NT1 in the device.
> 
>         FYI: NI-1 is the protocols the switches use to talk to
> the ISDN terminal equipment.  It stands for _N_ational _I_SDN _1_.
> It superceedes the switch dependent ISDN implementations
> (5ESS/AT&T, NTI/DMS100, Siemens, etc.)
> 
> 
>         If you're planning on running S/T through out the house,
> I have some Alpha Telecom SuperNT-1's that will be available in
> a month or so. The SNT1 is a NT1 that also presents two POTS
> ports in addition to converting between U and S/T.  They are set
> up to pass the S/T bus through as well, and could easily act as
> the NT1 in front of an S/T bus terminal adapter or router.
> 
> --
> Eric Schnoebelen                eric at cirr.com           http://www.cirr.com