SimCom GL100 Especificações descarregar pdf (Página 20)

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GT300 @Track Air Interface Protocol

3.2.9. Remote Volume Control

The AT+GTRVC command is used to control the volume of voice call and ring tone of the

terminal.

¾ AT+GTRVC=

Example:

AT+GTRVC=gt300,3,5,3,4,2,0008

Parameter

Length(byte)

Range/Format

Default

password

4~8

„0‟-„9‟,‟a‟-„z‟,‟A‟-„Z‟

gt300

normal speech

1-7

hands-free speech

1-7

headset speech

1-7

normal ring tone

1-7

headset ring tone

1-7

serial number

0000-FFFF

— <normal speech>: The volume of the receiver during a voice call.

— <hands-free speech>: The volume of the speaker during a hands-free call.

— <headset speech>: The volume of the headset during a voice call.

— <normal ring tone>: The volume of normal ring tone.

— <headset ring tone>: The volume of ring tone via headset.

The acknowledgment message of the AT+GTRVC command:

¾ +ACK:GTRVC,

Example:

+ACK:GTRVC,135790246811220,0008,20090101000002,11F0,0102070202

Parameter

Length(byte)

Range/Format

Default

unique ID

IMEI

serial number

0000-FFFF

ack time

YYYYMMDDHHMMSS

count num

0000-FFFF

ver

HHHHSSPPPP

3.2.10. Time Adjustment

The command AT+GTTMA is used to adjust the local time of the device remotely. Upon this

command, the device will set the time zone and daylight saving accordingly. Then it will use the

given UTC time to adjust the local time based on the time zone and daylight saving setting. This

command will also trigger the device to start GPS. After a successful GPS fix, the device will

update the local time with the GPS UTC time again.

The backend server could use this command to hide the “Time and Date” menu if the end user is

forbidden to adjust the local time.

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