MEITRACK T622 GPRS Protocol
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Port: a maximum of 5 digits.
APN/APN user name/APN password: a maximum of 32 bytes respectively.
If no user name and password are required, leave them blank.
Applicable Model
T622
Example
GPRS Sending
@@H48,353358017784062,A21,1,67.203.13.26,8800,,,*C9
GPRS Reply
$$H28,353358017784062,A21,OK*F4\r\n
3.10
Setting the DNS Server IP Address – A22
GPRS Sending
A22,
DNS server IP address
GPRS Reply
A22,OK
Description
An incorrect DNS server IP address may lead to GPRS data reporting failures after the
A21 command is used. Use the A22 command to set the DNS server IP address (confirm
the IP address with your domain name provider.). Then use the A21 command to reset
the domain name.
DNS server IP address: a maximum of 16 bytes
Applicable Model
T622
Example
GPRS Sending
@@K38,353358017784062,A22,75.127.67.90*FD\r\n
GPRS Reply
$$K28,353358017784062,A22,OK*F8\r\n
3.11
Setting the Standby GPRS Server – A23
GPRS Sending
A23,
IP address
,
Port
GPRS Reply
A23,OK
Description
IP address: a maximum of 32 bytes
Port: a maximum of 5 digits
When the tracker fails to send data to the active server set by command A21, data is
automatically sent to the standby server to prevent data loss.
Applicable Model
T622
Example
GPRS Sending
@@S43,353358017784062,A23,67.203.13.26,8800*F0
GPRS Reply
$$S28,353358017784062,A23,OK*01\r\n
3.12
Reading All Authorized Phone Numbers – A70
GPRS Sending
A70
GPRS Reply
A70,
SOS phone number 1
,
SOS phone number 2
,
SOS phone number 3
,
Listen-in phone
number 1
,
Listen-in phone number 2
Description
Read all authorized phone numbers.
Applicable Model
T622