User's Manual
Table Of Contents
Page 3 of 187
TECHNICAL MANUAL
Telit GM862 PCS
Tri Band GPRS Data Terminal System Rev.1
2.4.3.3 P - set pulse dial....................................................................................................................................................59
2.4.3.4 A - answer..............................................................................................................................................................59
2.4.3.5 A/ - Last command automatic repetition..........................................................................................................60
2.4.3.6 H - disconnect.......................................................................................................................................................60
2.4.3.7 O - return to On Line Mode................................................................................................................................61
2.4.3.8 &G - guard tone....................................................................................................................................................61
2.4.3.9 &P - pulse dial make/break ratio........................................................................................................................62
2.4.4 Modulation control....................................................................................................................................................62
2.4.4.1 +MS - modulation control...................................................................................................................................62
2.4.4.2 %E - enable/disable line quality monitor and auto retrain or fallback / fallforward.................................63
2.4.5 Compression control.................................................................................................................................................64
2.4.5.1 +DS - set data compression................................................................................................................................64
2.4.5.2 +DR - data compression reporting....................................................................................................................64
2.4.6 Break control...............................................................................................................................................................65
2.4.6.1 \B - transmit break to remote..............................................................................................................................65
2.4.6.2 \K - break handling...............................................................................................................................................65
2.4.7 S parameters................................................................................................................................................................66
2.4.7.1 S0 - number of rings to auto answer.................................................................................................................66
2.4.7.2 S1 - ring counter...................................................................................................................................................66
2.4.7.3 S2 - escape character............................................................................................................................................67
2.4.7.4 S3 - carriage return character..............................................................................................................................67
2.4.7.5 S4 - line feed character........................................................................................................................................68
2.4.7.6 S5 - backspace character.....................................................................................................................................68
2.4.7.7 S7 - wait time for carrier, silence or dial tone.................................................................................................69
2.4.7.8 S10 - lost carrier to hang up delay.....................................................................................................................69
2.4.7.9 S12 - escape prompt delay..................................................................................................................................70
2.4.7.10 S25 - delay to DTR off.........................................................................................................................................70
2.4.7.11 S30 - disconnect inactivity timer........................................................................................................................71
2.4.7.12 S38 - delay before forced hang up.....................................................................................................................71
2.5 ETSI GSM 07.07 AT Commands ..................................................................................................................................72
2.5.1 General.........................................................................................................................................................................72
2.5.1.1 +CGMI - request manufacturer identification.................................................................................................72
2.5.1.2 +CGMM - request model identification...........................................................................................................72
2.5.1.3 +CGMR - request revision identification.........................................................................................................72
2.5.1.4 +CGSN - request product serial number identification..................................................................................73
2.5.1.5 +CSCS - select TE character set........................................................................................................................73
2.5.1.6 +CIMI - request international mobile subscriber identity (IMSI)................................................................74
2.5.2 Call control..................................................................................................................................................................75
2.5.2.1 +CBST - select bearer service type...................................................................................................................75
2.5.2.2 +CRLP - radio link protocol...............................................................................................................................76
2.5.2.3 +CR - service reporting control.........................................................................................................................77
2.5.2.4 +CEER - extended error report ..........................................................................................................................78
2.5.2.5 +CRC - cellular result codes ..............................................................................................................................79
2.5.3 Network service handling.........................................................................................................................................80
2.5.3.1 +CNUM - subscriber number.............................................................................................................................80
2.5.3.2 +CREG - network registration report................................................................................................................81
2.5.3.3 +COPS - operator selection................................................................................................................................83
2.5.3.4 +CLCK - facility lock/ unlock............................................................................................................................84
2.5.3.5 +CPWD - change facility password..................................................................................................................85
2.5.3.6 +CLIP - calling line identification presentation..............................................................................................86
2.5.3.7 +CLIR - calling line identification restriction.................................................................................................87
2.5.3.8 +CCFC - call forwarding number and conditions..........................................................................................88
2.5.3.9 +CCWA - call waiting.........................................................................................................................................90
2.5.3.10 +CHLD - call holding services ..........................................................................................................................91
2.5.3.11 +CUSD - unstructured supplementary service data........................................................................................92
2.5.3.12 +CAOC - advice of charge..................................................................................................................................94