Telos NX12 user manual For Europe and many other parts of the world

56  Section 5

There are a number of choices, but the most common are described below.

For Europe and many other parts of the world

♦♦ ETS 300. This is the very common Euro-ISDN, according to the ETS 300 standard.

For USA & Canada and a few other parts of the world

♦♦ Natl. I-1. National ISDN-1 is the most common protocol for the USA & Canada and some other parts of the world. May also be used with lines conforming to National ISDN-2. See the notes about SPIDs, below.

♦♦ DMS Cust. For ‘custom functional’ lines on the Nortel DMS-100 switch. See the notes about SPIDs, below.

♦♦ AT&T Cust. This is the AT&T PTP protocol, sometimes called ‘AT&T custom Point- to-Point’. This protocol generally does not allow two simultaneous voice calls. For this reason we recommend that the National ISDN-1 protocol be used if you are on the AT&T/Lucent 5ESS Telco switch.

If you are in Europe or most of South America, you should choose ETS 300. If you have Net64 ISDN in Japan you should select INS64.

If you are in Hong Kong you should choose AT&T Cust.

If you are in the USA or Canada, use whichever protocol your phone company has provided. If you do not know, you may be able to guess...

Guessing the ISDN Protocol setting in Canada & the USA

♦♦ If you were given only a single phone number and no SPIDs try AT&T Cust

♦♦ If you were given 2 SPIDs with the format: 01+7 digit phone #+0 try AT&T Cust

♦♦ If you were given 2 SPIDs with the format: 01+7 digit phone #+000 or 01+7 digits +011 try Natl.I-1

♦♦ If you were given 2 SPIDs with the format: area code+7 digit phone #+4 digits (for example 0101, 0100, 0111, or 1111) try Natl.I-1. If that fails Try DMS Cust

♦♦ If you were given 2 SPIDs with the format: area code+7 digit phone #+1 digit (for example 1, or 0) try DMS Cust. If this fails try Natl.I-1

♦♦ If you were given 2 SPIDs with the format: area code+7digit phone #+2 digits (for example 01, 11, 02, or 00) try DMS Cust. If that fails try Natl.I-1

♦♦ If you were given 2 SPIDs with the format: area code+7digit phone #+3 digits (for example 000,001) try Natl.I-1. If that fails try DMS-Cust

♦♦ If you were given a single phone number and a single SPID with the format: of 01+7 digit phone#+0 try AT&T Cust (Do not enter this SPID)

♦♦ If you were given a single phone number and a single SPID with the format: of 01+7 digit phone#+00 try Natl.I-1. If that fails try AT&T Cust

♦♦ If you were given a single phone number and a single SPID with the format: of area code+7digit phone#+4digits (for example 0101, 0100, 0111, or 1111) Try Natl.I-1. If that fails try DMS