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SIM800 Series_AT Command Manual_V1.09

2015-08-03

1 Active

Parameter Saving

Mode

NO_SAVE

Max

Response

Time

15s

Reference

3GPP TS 27.007

Note

3.2.6 AT+CCWA

Call Waiting Control

AT+CCWA

Call Waiting Control

Response

+CCWA: (list of supported <n>s)

Test Command

AT+CCWA=?

Parameters

See Write Command

Response

+CCWA: <n>

Read Command

AT+CCWA?

Parameters

See Write Command

Response

TA controls the Call Waiting supplementary service. Activation,

deactivation and status query are supported.

If <mode>≠2 and Command successful

If <mode>=2 and Command successful

+CCWA:

<status>,<class1>[<CR><LF>+CCWA:<status>,<class2>[...]]

ERROR

If error is related to ME functionality:

+CME ERROR: <err>

Note: <status>=0 should be returned only if service is not active for any

<class> i.e. +CCWA: 0, 7 will be returned in this case.

When mode=2, all active call waiting classes will be reported. In this mode

the Command is aborted by pressing any key.

Write Command

AT+CCWA=<n>[,

<mode>[,<class>]]

Parameters

<n>

0 Disable presentation of an unsolicited result code

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