Chapter 17 – Extended AT Commands in IS707.3

Select Multiplex Option +CMUX

Description: The numeric parameter is used to select multiplex option.

Values:

<n>

 

 

1: Multiplex Option 1

 

 

2: Multiplex Option 2

 

Syntax:

Command syntax: AT+CMUX=<n>

 

 

Command

Possible Responses

 

AT+CMUX?

+CMUX: C, 2

 

Note: Display the current setting.

OK

 

 

Note: Command is valid

 

AT+CMUX=?

+CMUX: (1-9,A-F), (1,2)

 

Note: Display valid parameter range.

OK

 

 

Note: Command is valid

 

AT+CMUX=1

OK

 

Note: Set multiplex option 1.

Note: Command is valid

Um Interface Fax Compression +CFC

Description:

The numeric parameter is used to set the Um Interface Fax Compression.

Values:

<Val>

 

 

0: No compression

 

 

1: V.42bis compression with parameters as set by the +CDS command

 

2: Modified Read compression

 

 

Note: Currently, the values 1 and 2 are not supported.

Syntax:

Command syntax: AT+CFC=<Val>

 

 

Command

Possible Responses

 

 

 

 

AT+CFC?

+CFC: 0

 

Note: Display the current setting.

OK

 

 

Note: Command is valid

 

 

 

 

AT+CFC=?

+CFC: (0-2)

 

Note: Display the range of the setting.

OK

 

 

Note: Command is valid

 

 

 

 

AT+CFC=0

OK

 

Note: Set no compression.

Note: Command is valid

 

 

 

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C

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Multi-Tech Systems CDMA Wireless Modem manual Select Multiplex Option +CMUX, Um Interface Fax Compression +CFC