Multi-Tech Systems CDMA Wireless Modem manual Incoming Call +CRING, RxLev Indication +CSQ

Chapter 3 – Unsolicited AT Result Codes

Incoming Call +CRING

Description: This response indicates an incoming call. See +CRC, Cellular Result Codes, in chapter 10 for information about enabling this result.

Values: <type>

VOICE: normal voice call

DATA: all types of data calls

FAX: all types of fax calls

OTAPA: over the air parameter administration call

TEST: markov, loopback, or test call

Syntax: Response syntax: +CRING: <Type>

Example Result

+CREG: VOICE

Note: Incoming normal voice call.

RxLev Indication +CSQ

Description: This response is used to return information that has been requested by the +CCED AT command. Refer to the +CCED AT command in chapter 14 (Cell Environment and RxLev Indication) for command usage information.

Values: <rssi>:

0-31: Valid value ranges. Exact meaning of the value shall be manufacturer defined. The lowest value is 0 and the highest is 31.

99: Represents signal quality unknown.

<fer>:

99: Not known or not detectable Currently always returns 99.

Syntax: Response syntax: +CSQ: <rssi>,<fer>

Example Result

+CSQ: 29, 99

Note: RSSI notification

Incoming Call +RING

Description: This response indicates an incoming call.

Syntax: Response syntax: +RING

Example Result

+RING

+RING

Note: Incoming Call

Multi-Tech Systems, Inc. CDMA Wireless AT Commands - PN S000294C 19