Motorola g20 - Table 66. +MTDTR Parameters

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98-08901C68-O 149

AT Commands Reference

+CBAND=?

4.7.1.5 +MTDTR, DTR Line Test Command

This command checks and outputs the physical current status of the DTR pin of the RS232.

Set Command

Read Command

Test Command

The following table shows the +MTDTR parameters.

Example

AT+MTDTR?

+MTDTR:1

AT+MTDTR

+MTDTR:1

Command Response/Action

AT+MTDTR MTDTR:<n>

Command Response/Action

AT+MTDTR? MTDTR:<n>

Command Response/Action

AT+MTDTR=? OK

Table 66. +MTDTR Parameters

<Parameter> Description

<n> 0 DTR OFF

1DTR ON

Main Page

Revision History2
Table of Contents3
Preface15
Scope of this Manual15
Who Should Use this Manual15
Applicable Documents15
How this Manual Is Organized15
Product Features17
New Oem Features17
Stk17
Tcp/Ip19
Figure 1. System Overview19
Audio20
Figure 2. TCP/IP20
Figure 3. Sidetone21
Figure 4. Echo Cancel21
Java API22
Figure 5. G20 API Java Approach22
Gprs Operation23
Overview23
Features and Benefits23
Technical Description (GPRS - Class B Operation)23
Csd Operation24
Overview24
Features and Benefits24
Technical Description24
E-Otd25
Overview25
Features and Benefits25
Technical Description25
Mux Integration25
Features and Benefits26
Figure 6. G20 with Multiplexer Support Capabilities26
Technical Description27
Sending Sms27
Overview27
Features and Benefits27
Technical Description28
Fax28
Overview28
Features and Benefits28
Table 1. SMS Type Characteristics28
Character Sets29
ASCII Character Set Management29
GSM Character Set Management29
UCS2 Character Set Management29
Table 2. References to Character Set Conversion Tables29
Character Set Management30
At Commands Summary31
Table 3. at Commands37
Introduction to at Commands43
At Commands Overview43
General Symbols Used in at Commands Description43
General System Abbreviations43
Table 4. Syntax Definitions43
At Commands Protocol44
At Commands Structure44
Command Structure44
Figure 7. at Commands Protocol44
Results Code Structure45
Figure 8. Basic Structure of a Command Line45
Response and Indications Structure46
At Commands Protocol & Structure Configuration46
Figure 9. Response to a Command Line46
Command Token Types47
Basic Syntax Command Format47
Figure 10. Flow and Structure Configuration Commands47
Extended Syntax Command Format48
Command Argument Types48
Numeric Constants48
String Constants48
Command Mode Types48
Parameter Set Command Syntax48
Parameter Read Command Syntax49
Parameter Test Command Syntax49
Values49
Range of Values49
Compound Range of Values49
Aborting Commands49
Core at Commands50
Table 5. Core at Commands50
At Commands Reference53
G18 Backward Compatibility53
Modem ID53
Subscriber Unit Identity53
Table 6. +CGMM String Parameters55
Table 7. +CSCS Parameter Optional Values57
Table 8. Supported Information Items58
Table 9. +CNUM Parameters60
Capability Reporting61
Table 10. Accessory Features Supported in the G2061
Table 11. +MAPV Parameters63
Table 12. +MPDPM Parameters63
Call Control64
Managing a CSD (Data) Call64
Receiving a Data Call65
Call Control at Commands66
Table 13. D Parameters67
Table 14. D> Commands68
Table 15. D> Parameters69
Table 16. DL Parameters70
Table 17. H Call States71
Table 18. + CRC Parameters74
Table 19. +CLIP Parameters77
Table 20. +CCWA Parameters80
Table 21. +CHLD Parameters83
Table 22. +CHLD Actions According to Call State and Operation83
Table 23. +CCFC Parameters87
Table 24. +CLIR Parameters90
Table 25. +CBST Parameters93
Table 26. +COLP Parameters95
Call Status Messages96
Table 27. Call Processing State Codes97
Table 28. +CPAS Parameters99
Table 29. +CLCC Parameters101
Table 30. +CAOC Parameters104
Phone and Date Books106
Directory Access Commands106
Table 31. at Phone Book Commands106
Table 32. +CPBS Parameters109
Table 33. +CPBR Parameters111
Table 34. +MPBR Parameters113
Table 35. +CPBF Parameters116
Table 36. +MPBF Parameters117
Table 37. +CPBW Parameters120
Table 38. +MPBW Parameters122
Date Book Access Commands125
Table 39. +MDBL Parameters125
Table 40. +MDBR Parameters126
System Date and Time Access Commands129
Table 41. +MDBAD Parameters129
Table 42. +CCLK Parameters130
Sms131
SMS Commands131
Table 43. +CSMS Parameters132
Table 44. +CPMS Parameters133
Table 45. +CMGF Parameters135
Table 46. +CSCA Input Characters and Hexadecimal Values136
Table 47. +CSCA Parameters137
Table 48. +MEGA Parameters138
Table 49. +CSDH Parameters139
Table 50. +CNMI Parameters140
Table 51. +CMTI Parameters142
Table 52. +CGML Parameters143
Table 53. +MMGL Parameters144
Table 54. +CMGR Parameters145
Table 55. +MMAR Parameters146
Table 56. +CMSS Parameters147
Table 57. +CMGW Parameters148
Table 58. +CMGD Parameters149
Network150
Network Commands150
Table 59. +CSQ Parameters151
Table 60. +CRLP Parameters152
Table 61. +CREG Parameters153
Table 62. +CGREG Parameters155
Table 63. +COPS Parameters158
Hardware Information159
Table 64. +CBC Parameters160
Table 65. +CBAUD Parameters161
Table 66. +MTDTR Parameters163
Table 67. &K Parameters165
Table 68. +IPR Parameters167
Table 69. &C Parameters168
Table 70. &D Parameters169
Table 71. +MCWAKE Parameters170
Audio171
Audio Tone Commands172
Table 72. ATS96 and ATS94 Behavior172
Table 73. +CRTT Parameters173
Table 74. S94 Parameters175
Table 75. S96 Parameters176
MA, Audio Control Commands177
Figure 11. Audio Paths177
Table 76. +MAPATH Parameters178
Table 77. +MAVOL Parameters180
Table 78. MAFEAT Parameters182
Table 79. MAMUT Parameters183
Access184
Access Control Commands184
Table 80. SIM Card Errors186
Table 81. +CPIN Parameters187
Table 82. +CPDW Parameters190
Table 83. +CLCK Parameters193
Modem Configuration and Profile195
Modem Register Commands195
Table 84. Effects of Parameter Settings195
Table 85. V Parameters196
Table 86. Qn Parameters197
Table 87. en Parameters198
Table 88. X Parameters200
Table 89. S-Registers and the Associated S-Parameters201
Table 90. &F Parameters203
Sleep Mode Commands204
Table 91. Z Parameters204
Figure 12. Wakeup-In Line205
Figure 13. Wakeup-Out Line206
Figure 14. Sleep Mode When S24 > 0206
Figure 15. G20 Lines When S24 > 0207
Table 92. S24 Parameters207
Table 93. S102 Parameters209
Table 94. +MSCTS Parameters210
Error Handling Commands211
Table 95. +CMEE Parameters212
Table 96. +CEER Parameters214
Ui (User Interface)216
MH, Handset Status/Control216
Table 97. +MHIG Parameters217
Table 98. +CKPD Parameters218
Table 99. Character Codes218
Table 100. +MKPD Parameters220
Table 101. +CMER Parameters222
Unsolicited UI Status Messages223
Table 102. +CKEV Parameters223
Table 103. +MUPB Parameters224
Gprs225
GPRS Commands225
Table 104. +CGCLASS Parameters226
Table 105. +CGDCONT Parameters227
Table 106. +CGQMIN Parameters231
Table 107. +CGQREQ Parameters232
Table 108. +CGACT Parameters234
Table 109. +CGATT Parameters236
Table 110. D*99 Parameters238
Table 111. +GPRS Parameters239
Nop - Compatible240
IGNORED (Compatible Only) Commands240
Table 112. Ignored (Compatible Only) Commands240
G18 Compatibility Output Table241
Table 113. G18 Compatibility Commands241
Fax Class 1242
Table 114. Fax Class 1 Command Summary242
Fax Commands243
Table 115. +FCLASS Parameters244
Table 116. +FTS Parameters245
Table 117. +FRS Parameters245
Table 118. Command Modulation Select Codes247
Table 119. Command Modulation Select Codes249
Table 120. Command Modulation Select Codes250
Features251
Stk251
Figure 16. SIM Toolkit251
Table 121. +MTKE Parameters252
Table 122. +MTKP Command Types254
Table 123. +MTKP Parameters254
Table 124256
Table 125. +MTKM Parameters258
Table 126. +MTKM Parameters259
Tcp/Ip260
Table 127. +MTKC Parameters260
Table 128. +MIPCALL Parameters261
Table 129. +MIPOPEN Parameters263
Table 130. +MIPCLOSE Parameters264
Table 131. +MIPSETS Parameters266
Table 132. +MIPSEND Parameters267
Table 133. +MIPPUSH Parameters269
Table 134. +MIPFLUSH Parameters270
Table 135. +MIPRCV Parameters271
Table 136. MIPSTAT Parameters272
Mux273
Services273
Using the Commands277
Setting up the G20 (Power on and Initial Actions)277
Figure 17. Phone Connectivity Phases277
Init General278
SIM Management279
Registration and Call Indications280
Sms280
Managing Stored Messages from the G20280
Setting the Notification Indication for Incoming Messages (Using AT+CNMI)281
Another Possible Option for Setting the CNMI Notification Indication282
Writing and Saving Messages (Using AT+CMGW and AT+CMSS)282
Deleting Messages (Using AT+CMGD)283
Call Control283
Dialing Using ATD283
Direct Dialing from Phone Book285
Dialing the Last Number Example286
Voice Call Manipulations287
Data Call288
Switching Modes (Data Mode/Command Mode)288
Gprs289
Establishing GPRS PDP Context289
Changing the Character Set291
Sleep Mode292
Stk293
Display Text293
Get Inkey293
Figure 18. Sleep Mode When S24 > 0293
Figure 19. Display Text293
Figure 20. Get Inkey293
Get Input294
Play Tone294
Set up Menu294
Figure 21. Get Input294
Figure 22. Play Tone294
Figure 23. Set up Menu294
Select Item295
Send SMS295
Set up Call295
Figure 24. Select Item295
Figure 25. Send SMS295
Figure 26. Set up Call295
Call Control296
Figure 27. Call Control296
Tcp/Ip297
TCP Data Transfer Example297
Multi-Point Data Transfer Example298
Xoff and Xon Example299
Error in Reopening a Valid Socket300
Audio300
Scenarios for Setting up Handset Mode or Handsfree Mode300
Mux - User Integration (Mux Packet)301
Apis301
Figure 28. Handset or Handsfree Setup301
Figure 29. MUX Frames303
Figure 30. MUX Frames - SABM304
Figure 31. MUX Frames - DISC304
Figure 32. MUX Frames - UIH305
Figure 33. Multiplexer Control Channel305
Figure 34. Multiplexer Control Channel - CLD306
Figure 35. Multiplexer Control Channel - Test306
Figure 36. Multiplexer Control Channel - Fcon307
Figure 37. Multiplexer Control Channel - Fcoff307
Figure 38. Multiplexer Control Channel - MSC308
Figure 39. PC Emulator User Interface308
Figure 40309
Figure 41309
Tools311
Pc Loader311
Overview311
Pc Driver311
Fax Communication by Standard 19200 Bps Modem311
Establishing GPRS PDP Context (Using GPRS Manager)312
Data Logger312
Purpose312
Using the Data Logger312
Start Data Logging312
Figure 42313
Figure 43313
Figure 44314
Figure 45314
Stop Data Logging315
Mux315
PC Emulator (Ehterminal)315
Figure 46315
Figure 47. PC Emulator User Interface315
PC Multiplexer Driver316
Figure 48. Properties Window316
Figure 49. G18 Motorola Modem Window316
PC Multiplexer Application317
Figure 50. Hyperterminal Window317
Figure 51. Device Manager Window317
Reference Tables319
At Commands Alphabetical Summary319
Table 137. at Commands (Alphabetical)319
Character Set Table Cs1: (Gsm -> Ucs-2)329
Table 138. GSM to UCS-2 Encoding329
Character Set Table Cs2: (Ascii <-> Utf-8)337
Character Set Table Cs3: (Ucs-2 <-> Utf-8)337
Table 139. ASCII to UTF-8 Encoding337
Table 140. UCS-2 to UTF-8 Encoding337
Character Set Table Cs4: (Iso 8859-1 -> Gsm)338
Character Set Table Cs5: (Gsm)339
Character Set Table Cs6: (Ucs2 Full Table)339
Character Set Table Cs7: (Ascii Table)340

Motorola g20 - Table 66. +MTDTR Parameters

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