[17729] in North American Network Operators' Group
Re: SPID and portmaster 2 BRI.
daemon@ATHENA.MIT.EDU (Fade)
Wed Jun 10 00:59:29 1998
Date: Tue, 9 Jun 1998 11:03:36 -0500 (CDT)
From: Fade <fade@mail1.i1.net>
To: Tatsuya Kawasaki <tatsuya@giganet.net>
cc: nanog ml <nanog@merit.edu>
In-Reply-To: <Pine.GSO.3.95LJ1.1b4.980609151059.8938A-100000@thongvilay.giganet.net>
Hi,
Here is a brief explanation of SPIDs taken from an email I saved long long
ago. Hope it helps...
-=fade=-
There's not much to it. Simply put, SPIDs identify to the phone company
what types of services and features are supported for a given device.
SPIDs are optional in the ISDN standard, but usually required in North
America. As I said above, SPIDs are usually 12 digit numbers consisting
of the area code, 7 digit number and some trailing 0s and/or 1s. For
example: 408 555 1212 00). The DN (Direct Number) is simply the "normal"
7 digit phone number. For example: 555 1212.
There are three switch types the LS-ISDN and NI2B Dual-BRI card support:
AT&T 5ESS, Northern Telecom DMS100 and National ISDN-1 (NI1). If a ISDN
service provider is using an AT&T 5ESS with a software revision lower than
5E8, then most likely the 5E can not support NI1. In this case, SPIDs are
not required. However, if they have the 5E set-up for NI1, they will
tell you to set up your equipment for NI1 and they will provide SPIDs and
DNs. Same for the DMS-100...expect that SPIDs and DNs are usually always
required for the DMS-100, regardless if the switch is setup for NI1 or
DMS-100.
A good ISDN home page on the Web is:
http://www.cis.ohio-state.edu/~fine/ISDN/
Also,
http://alumni.caltech.edu/~dank/isdn/
Hope this is helpful.
Jim Tremolini
Senior Systems Engineer
Telebit Corporation
