ISU AT Command Reference

ISU AT Command ReferenceS-Register Definitions11.2 Standard S-RegistersRegisterNumberTable 10-1: Standard S-RegistersRange Default DescriptionS0 0-255 0 Autoanswer. Assigning a value from 1 to 255 in register S0tells the ISU to automatically answer incoming calls. Thefactory setting of 0 turns off the automatic answer feature.Register S15 controls the type of call to be automaticallyanswered.Sr=n CommandWrite Protectedin SAC0201S1 0-255 0 Ring count YesS2 0-255 43 Escape code characterS3 0-127 13 Carriage return characterS4 0-127 10 Line feed characterS5 0-32 8 Backspace characterS6 0-255 4 Wait for dial-tone.No action, compatibility onlyS7 0-255 50 Communication standard used by ISUNo action, compatibility onlyS8 0-255 4 Pause time for comma.No action, compatibility onlyS9 0-255 6 Carrier detect response time.No action, compatibility onlyS10 0-255 14 Carrier loss time.No action, compatibility onlyS11 0-255 0 DTMF tone duration.No action, compatibility onlyS12 0-255 40 Escape guard time. Time, in 50ths of a second, until OKdisplayed after entering command mode by escape sequence.S14 0-255 170 Bitmap register where bit 1 reflects the En setting, bit 2 turnsoff command responses, bit 3 reflects the Vn setting, bit 5reflects pulse/tone dial modeS21 0-255 48 Bitmap register where bit 0 reflects telephone jack control,bit 2 reflects RTS/CTS on/off, bits 3 and 4 reflect the &Dnsetting,bit 5 reflects the &Cn setting, bit 6 reflects DSRon/off, and bit 7 reflects disconnecting long space.S22 0-255 246 Bitmap register where bits 0 and 1 reflect the speakervolume setting, bits 2 and 3 reflect the speaker on/offsetting, and bits 4, 5 and 6 reflect the Xn setting.YesYesYesVersion 2.6March 30, 2006 83