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What server sends with code_id is 08 and number of data is 11?, this 11 after data convert with bin2hex

We used php and send Chr(0). Chr(0). Chr(0).Chr(11) -->>not work

Thank you
the manual no have example for number of data greater 09, because work well if number of data is < 10, and not works > 09

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Teltonika devices are using Codec 8 or Codec 8 Extended for sending data to the server.

You may find the protocol documentation on this link : Codec - Wiki Knowledge Base | Teltonika GPS (

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Please contact your sales manager. If you don't have any contacts with our Sale managers, please contact with them on our official website and click on the "Contact Us" button. When you will click, please fill the form and submit it. Note: as a topic, please choose "Vehicle telematics". Or you can send an e-mail with description of your situation to When contacting Us, please provide: IMEI/Logs/Configuration file/Intenational GSM number/Firmware version/ect, please follow these recommendations:

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