Reference Guide for the Model XM128 ISDN Digital Modem

Switch Type Setup for North America

In North America, the popular types of switches are AT&T 5ESS, Northern Telecom DMS100, and Siemens EWSD. All of these switches run software that either conforms to the National ISDN-1 standard or a custom version. The Model XM128 modem supports the six different combinations listed in Table 4-4. The value for n in the ATPn command is shown in the AT command column. The ATPn command programs the D channel protocol so that the Model XM128 modem works with the type of switch that is connected to your ISDN line.

Table 4-4.

Switches supported by the Model XM128 modem

 

 

 

 

 

ISDN network switch

Switch version

AT command

Number of SPIDs

 

 

 

 

AT&T 5ESS network switch

Point-to-point Protocol

ATP4

0

 

 

 

 

 

 

 

Point-to-multipoint Protocol

ATP5

1

 

 

 

 

 

 

 

Point-to-multipoint Protocol

ATP6

2

 

 

 

 

 

 

 

National ISDN-1

ATP1

1

 

 

 

 

 

 

 

National ISDN-1

ATP2

2

 

 

 

 

NT DMS 100 network switch

Custom

ATP0

2

 

 

 

 

 

 

 

National ISDN-1

ATP1

1

 

 

 

 

 

 

 

National ISDN-1

ATP2

2

 

 

 

 

Siemens EWSD network switch

National ISDN-1

ATP1

1

 

 

 

 

 

 

 

National ISDN-1

ATP2

2

 

 

 

 

 

Other

 

National ISDN-1

ATP1

1

 

 

 

 

 

 

 

National ISDN-1

ATP2

2

 

 

 

 

 

To set your switch type, use AT commands (examples given are if your switch type is DMS 100 with Custom Protocol) and follow these steps:

1.Type ATP0 and press [Enter].

You should receive the following response:

OK

Switch Type: Northern Telecom DMS 100

2.Type AT&WZ and [Enter] to save the settings.

You should receive the following response:

OK

Configuration

4-5

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NETGEAR XM128 ISDN manual Switch Type Setup for North America, Switches supported by the Model XM128 modem