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SIM900 AT Command Manual

SIM900_AT Command Manual_V1.03 56 12/24/2010

3.2.13 AT+CSTA Select Type of Address

AT+CSTA Select Type of Address

Response

+CSTA: (list of supported <type>s)

Test Command

AT+CSTA=?

Parameter

See Write Command

Response

+CSTA: <type>

Read Command

AT+CSTA?

Parameter

<type> Current address type setting.

Response

If <type> is not in the parameter range:

ERROR

Write Command

AT+CSTA=<type

Parameter

<type> Type of address octet in integer format;

129 Unknown type (IDSN format number)

161 National number type (IDSN format)

145 International number type (ISDN format )

177 Network specific number (ISDN format)

Reference

GSM 07.07 [13]

Note

The ATD Command overrides this setting when a number is dialed.

3.2.14 AT+CHLD Call Hold and Multiparty

AT+CHLD Call Hold and Multiparty

Response

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

Test Command

AT+CHLD=?

Parameter

See Write Command

Write Command

AT+CHLD=<n>

Response

TA controls the supplementary services Call Hold, Multiparty and Explicit

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Elec Freaks Bluetooth Modem Spécifications Page 56