AT Command Manual for Sierra MC87XX Module
Table Of Contents
- 1: About This Guide
- 2: AT Password Commands
- 3: Modem Status, Customization, and Reset Commands
- 4: Diagnostic Commands
- 5: Test Commands
- 6: Memory Management Commands
- 7: Voice Commands
- 8: GPS Commands
- 9: STK Commands
- Appendix A: Test Frequencies / Channel Lists
- Appendix B: HSDPA / HSUPA Categories
- Appendix C: ASCII Table
- Appendix D: Module Customization
STK Commands
Rev 2.9 Oct.08 153
Send USSD (<cmdId = 12>)
!STKCR parameters
<data> Not used
<result> Integer • 0 — Command performed successfully
• 1 — Command beyond ME’s capabilities
• 2 — Currently busy with USSD transaction
• 3 — Currently busy with SS transaction
• 4 — Terminated by user
• 5 — SS returned Result Error Code
• 6 — Network currently unable to process command
Table 9-4: Send SS parameters (Continued)
Parameter Format Description
Table 9-5: Send USSD parameters
Parameter Format Description
!STKGC <data> parameter — Format:
<dcs>, <ussd>, <alphaId>, <iconId>, <dispMode>
<dcs> Integer Data coding scheme
• 0 — 7-bit GSM default alphabet (packed)
• 4 — 8-bit GSM default alphabet (unpacked)
• 8 — UCS2 alphabet
<ussd> Hex string USSD string
<alphaId> Hex string Alpha identifier for user confirmation
<iconId> Integer Numeric tag of the icon to display (matches the index in
the SIM’s image file)
• 0 — No icon
• 1..255 — Icon tag
<dispMode> Integer Icon usage
• 0 — Display icon only (replace any text string or
alphaId)
• 1 — Display with alphaId or text string
!STKCR parameters
<data> Not used
<result> Integer • 0 — Command performed successfully
• 1 — Command beyond ME’s capabilities
• 2 — Currently busy with USSD transaction
• 3 — Currently busy with SS transaction
• 4 — Terminated by user
• 5 — SS returned Result Error Code
• 6 — Network currently unable to process command