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Chapter 5 – AT Commands, S-Registers, and Result Codes
Multi-Tech Systems, Inc. SocketModem MT5600SMI Developer’s Guide 30
Data Commands
The modem will respond to the commands detailed below. Parameters applicable to each command are
listed with the command description.
Generic Modem Control Commands
Command: Z Soft Reset and Restore Profile
Description: Causes the modem to perform a soft reset and restore (recall) the
configuration profile. If no value is specified, zero is assumed.
Default: None
Values: Number corresponding to the selected profile:
Z0 Soft reset and restore stored profile 0.
Z1 Soft reset and restores stored profile 1.
Result Codes: OK
Otherwise ERROR
Command: +FCLASS Select Active Service Class
Description: Selects the active service class (mode).
Default: 0
Defined Values: +FCLASS=0 Select Data Mode (Section 3) (Default).
+FCLASS=1 Select Facsimile Class 1 Mode.
+FCLASS=1.0 Select Facsimile Class 1.0 Mode.
+FCLASS=8 Select Voice Mode.
+FCLASS=10 Reserved.
Result Codes: OK
Otherwise ERROR
Report Commands: +FCLASS? Reports Current or Selected Values
+FCLASS=? Reports Range of Parameters
Command: +VCID Caller ID (CID)
Description: Controls the reporting and presentation of data associated with the Caller
ID services in the Incoming Call Line ID (ICLID) data format for the next
call. (U.S. only)
Default: 0
Defined Values: +VCID0 Disable Caller ID reporting.
+VCID1 Enables Caller ID with formatted presentation to the DTE. The
modem presents the data items in a <Tag><Value> pair
format. The expected pairs are date, time, name, and caller
code (telephone number).
+VCID2 Enables Caller ID with unformatted presentation to the DTE.
Report Commands: +VCID? Reports the Mode
+VCID=? Reports Range of Parameters
Command: +VRID Report Retrieved Caller ID (CID)
Description: Reports the data associated with the Caller ID services in the Incoming
Caller Line (ICLID) data format for the last received call. U.S. only
Default: None
Defined Values: +VRID0 Reports Caller ID with formatted presentation to the DTE. The
modem presents the data items in a <Tag><Value> pair
format. The expected pairs are date, time, name, and caller
code (telephone number).
+VRID1 Reports Caller ID with unformatted presentation to the DTE.
Report Commands: +VRID? Reports the Mode