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Chapter 5 – V.25bis Commands
Multi-Tech Systems, Inc. AT Commands Reference Guide (S000273G) 41
Chapter 5 – V.25bis Commands
Note: These commands can be used with the MT5600BA only.
The V.25bis commands control synchronous communications between the host and the modem using the HDLC or
character-oriented protocol. Modulation depends on the serial port rate and setting of the transmitting clock source.
These commands apply to modems that support synchronous communications.
Command: CIC Connect Incoming Call
Description: Answers an incoming call. Values: n/a
Command: DIC Disregard Incoming Call
Description : Disregards current incoming call. Values: n/a
Command: CRNs Call Request Number
Description: Used to dial a number
Values: s =dial string (0-9, *, #, :, <, =, P, T)
Command: CRIs Call Request Identification
Description: Used to dial a number
Values: s =dial string (0-9, *, #, :, <, =, P, T)
V.25bis Number Format:
0-9 Dialing Digit
: Wait tone
< Pause
= Separator
P Dialing to be continue in Pulse mode
T Dialing to be continue in DTMF
Command: PRNx;s Program Number
Description: Used to store dial string s in location x.
Values: x=(0-3)
s = dial string (0-9, *, #, :, <, =, P, T)
Command: CRSx Call Request Address
Description: Recalls dial string to dial from location x.
Values: x=(0-3)
Command: PRIa;s Program Identification Number
Description: Dummy Command (just returns VAL).
Command: RLD List Request of Delayed Call Number
Description: Returns current listing of Delayed numbers. Values: n/a.