User manual

GTR64 http://www.matrix.es/GTR64
AT+CSIM Generic SIM Access
AT+CSMP Set Text Mode Parameters
AT+CSMS Select Message Service
AT+CSNS Single Numbering Scheme
AT+CSQ Signal Strength
AT+CSSN tion Supplementary Service Notifica
AT+CSTA r f Phone Numbe Select Type o
AT+CTZU Automatic Time Zone Update
AT+CUSD Unstructured Supplementary Service Data
AT+CVHU Voice Hang-Up
AT+GCAP Capabilities
AT+GMI Request Manufacturer Identification
AT+GMM Request Model Identification
AT+GMR Revision Identification
AT+GSN Request Product Serial Number Identification
AT+ICF DTE-DCE Character Framing
AT+IFC DTE-DCE Local Flow Control
AT+ILRR Cable Interface Local Rate Reporting
AT+IPR Cable Interface Port baud rate
AT+VTD DTMF tone duration
AT+VTS DTMF and Tone Generation
GTR64 Integrators Manual V.1.2 Pag. 38
Preliminary. Subject to change without prior notice