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Chapter 2 – AT Commands
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273F) 19
Caller ID Commands
Command: +VCID=n Caller ID Selection
Values: n = 0, 1, or 2
Default: 0
Description: Enables Caller ID detection and configures the reporting and presentation of the Caller
ID data that is detected after the first ring. The reported data includes the date and time
of the call, the caller's name and number, and a message. Set S0=2.
+VCID=0 Disables Caller ID.
+VCID=1 Enables Caller ID with formatted data.
+VCID=2 Enables Caller ID with unformatted data.
+VCID=? Displays the allowed values.
+VCID? Displays the current values.
Command: +VRID= Caller ID Report Retrieved
Values: 0, 1
Default: 0
Description: This command reports the data associated with the Caller ID services in the Incoming
Call Line ID (ICLID) data format for the last received call.
+VRID=0 Reports Caller ID with formatted presentation to the DTE. Data includes
date, time, name, and telephone number.
+VRID=1 Reports Caller ID with unformatted presentation to the DTE.
+VRID=? Displays the supported range of parameter values.
+VRID Displays Caller ID information of the last call received.
Callback Security Commands
Note: Callback Security Commands apply to the MT5600BA and MT5600 BR only.
Command: #CBNn=[-]x Store Callback Number
Values: n = 01–30x = dialing string
Default: None
Description: Stores the callback dialing string x in a memory location. The dialing string can
include the digits 0 through 9 and any of the following characters:
#, *, comma (,), semicolon (;), W, A, B, C, and D.
Up to 30 characters can be used.
Example:AT#CBN01=9,16127853000.
If the optional - character precedes the dialing string, and the caller appends the
same character to the password, the caller is immediately connected.
Command: #CBPn=x Store Callback Password
Values: n = 01–30
x = password (6–10 characters)
Default: None
Description: Stores callback security password x in memory location y. The password must have 6
to 10 characters. Example: AT#CBP01=gilamep.
Note: A direct connect password may not end with a hyphen (-).
Command: #DBn Callback Enable/Disable
Values: n = 0 or 1
Default: 0
Description: Enables or disables callback security. When callback security is enabled, phone number
memory locations 0–4, used for quick dialing and DTR dialing, become unavailable and
are replaced by callback security memory locations 1–30. The phone number memory
locations and their contents are restored when callback security is disabled.
#DB0 Disables callback security.
#DB1 Enables callback security.