Product Specs

Packet Modem Spec Rev6.doc 19 06/09/00

5. AT Commands

The AT Commands recognized in the Tri Mode Portable Phone Software Release R5.1

are listed below in Table (1) as well as those specifically developed for the Packet Data

Module Table (3):

Commands that are recognized, but not supported on the module (such as the speaker

volumes) are listed in Table (2). For example, the module does not return an ERROR if

someone tries to set a modem speaker volume, but we don’t do anything with it either.

5.1 Operational Tri Mode AT Commands:

Command

AT Command Description Supported Tri

Mode AT

Commands

E Set Command Echo ON|OFF Y

Q Result Code Suppression Y

V DCE Response Format Y

Z Reset Default Configuration Y

&C Set DCE RLSD (DCD) Behavior Y

&D Set DCE Behavior with DTR Changes Y

&F Set to Factor Default Configuration Y

A/ Repeat Last Command Y

D Dial:

• #777 for Packet Data

• #MARKOV

• #LOOPBACK

H Hook Control Y

O Return to Online State Y

S3 Command Line Termination Character Y

S4 Response Termination Character Y

S5 Command Edit Character Y

S777 Silent Retry Timeout Y

+IFC Local Flow Control Settings Y

+IPR Rm Interface Baud Rate Setting Y

+CTA Dormant Mode Timeout Setting Y

$QCMODE Set UT Mode; Auto, Globalstar, Digital Y

Table 1.