Data Sheet

SIM900 AT Commands Set

SIM900R01_ATC_V1.00 60 15.01.2010

This number can be used in +CHLD command

operations

<dir> 0 mobile originated (MO) call

1 mobile terminated (MT) call

<stat> state of the call:

0 active

1 held

2 dialing (MO call)

3 alerting (MO call)

4 incoming (MT call)

5 waiting (MT call)

<mode> bearer/tele service:

0 voice

1 data

2 fax

<mpty> 0 call is not one of multiparty (conference) call parties

1 call is one of multiparty (conference) call parties

<number> string type(string should be included in quotation marks)

phone number in format specified by <type>

<type> type of address

Reference

GSM 07.07

[13][14]

Note

3.2.17 AT+CLCK Facility Lock

AT+CLCK Facility Lock

Response

+CLCK: (list of supported <fac>s)

Test Command

AT+CLCK=?

Parameter

see Write Command