User guide

Chapter 9 – Call Control Commands
Multi-Tech Systems, Inc. CDMA C1 AT Commands Reference Guide (PN S000478C) 42
List Current Call State +CLCC
Description: This command is used to return the current call state of the modem. Note that when dormant
mode is active, a “no call” status will be returned even though a data call may still be in progress.
Syntax: Command syntax: AT+CLCC
+CLCC: <state>, <mode>, <termination>
Command Possible Responses
AT+CLCC
Note: Seek current phone state
+CLCC: 0,9,0
OK
Note: Command valid
Values: <state> (state of the call):
0 no call
1 traffic
2 dialing (MO call)
3 incoming (MT call)
<mode> (teleservice) :
0 voice
1 data
3 sms
4 otasp
5 markov or loopback
9 unknown or not applicable
<termination>
0 unknown or not applicable
1 mobile terminated (MT) call
2 mobile originated (MO) call
Call Forwarding +CCFC
Description: This command allows control of the call forwarding supplementary service, if supported by the
carrier. All calls will be forwarded unconditionally to the phone number specified. The modem will
make a brief call to the CDMA network using a prefix number in NV memory. An audio tone will
be produced in the audio path to confirm the change of the call forwarding state.
Syntax: Command syntax: AT+CCFC= <number>
Command Possible Responses
AT+CCFC=8585551212
Note: Register to an unconditional call
forwarding.
OK
+WORG:*728585551212
+WCNT:3
Note: Call forwarding active for all incoming
calls to phone number 858-555-1212
AT+CCFC=0
Note: Cancel unconditional call forwarding
OK
+WORG:*720
+WCNT:3
Note: Call forwarding cancelled.
Values: <number> The phone number to which all calls are forwarded.