User`s guide

4.4 Modem experiences errors while online with a remote
modem. ............................................................................. 19
4.5 Modem exhibits poor voice record or playback. .............. 19
Section Five - AT Command Set 19
5.1 Executing Commands ....................................................... 21
5.2 Command Format ............................................................. 21
5.3 AT Commands: Basics ...................................................... 21
5.4 +++ (Plus-Plus-Plus) commands ...................................... 22
5.5 AT and AT& (Ampersand)Commands ............................. 22
5.6 AT% (Percent) and AT\ (Backslash) Commands.............. 25
5.7 AT* (Asterisk) Commands ............................................... 28
5.8 AT+ (Plus) Commands ..................................................... 29
Section Six - S Register Summary 39
Section Seven - Event Reporting Word 40