Installation guide

LMU Users Guide

V1.0.6 December 10 2009

- 52 - CalAmp Proprietary & Confidential

7.5.1 GPRS networks

The GPRS LMU-4100 supports all three options: Require, Prefer and Exclude. For example,

to Prefer MNC 380 yet Exclude 170, 180 and 190 you would use the following commands:

Prefer 380:

AT$APP PARAM 1537,0,2

AT$APP PARAM 1536,0,1

AT$APP PARAM 1538,0,380

Exclude 170

AT$APP PARAM 1537,1,3

AT$APP PARAM 1536,1,1

AT$APP PARAM 1538,1,170

Exclude 180

AT$APP PARAM 1537,2,3

AT$APP PARAM 1536,2,1

AT$APP PARAM 1538,2,180

Exclude 190

AT$APP PARAM 1537,3,3

AT$APP PARAM 1536,3,1

AT$APP PARAM 1538,3,190

7.5.2 CDMA networks

The CDMA LMU-4100 only supports the Exclude option as all roaming capabilities are

defined in the PRL in use by the CDMA modem. Please talk to your operator if a customer

PRL is necessary.

7.5.3 iDEN networks

The iDEN LMU-4100™ does not support the network selection feature.