Sierra Wireless manual Operating the MP215 via AT Commands

8.Operating the MP215 via AT Commands

The MP215 can be programmed to operate in one of its four modes, configured via Register WS181, as follows:

1)CDPD Mode (WS181=0).

This mode provides regular CDPD service

2)CS-CDPD (WS181=1)

This mode provides CS-CDPD service, i.e. CDPD protocol over a conventional AMPS call.

3)CS-CDPD, No Answer (WS181=5)

This mode provides CS-CDPD service but does not answer incoming calls (auto- answer disabled).

4)AUTO (WS181=3)

In this mode the MP215 automatically switches between CDPD and CS-CDPD modes depending on CDPD service availability. If both services are available it will choose CDPD. While in CS-CDPD mode, and idle, it will periodically check if CDPD service is available.

The AT command to control operational modes operates as follows:

AT+WS181=<n>	Set service preference
AT+WS181?	Query service preference
Where n =

0CDPD mode

1CS-CDPD mode

3AUTO mode

5CS-CDPD, No-answer Mode

PN 2110036 Revision 1.0 05/11/99 8-1