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SMS by pdu and text mode

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gsmman

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Hi friends
I want to interface q2686 module to the host processor. The main purpose is for the sms! . The modem support text and PDU format.
Text - 7bit coding
PDU - 8 bit octet coding scheme .. right ?

So i can send message on text and PDU format right? Suppose i am sending message in PDU format to one mobile phone wch is having only a text format support !!! What will happen ?

What is the common message format nowadays ? PDU or text ? advantages?


I'm new new to this field.. please help...

Thanks in advance
roy
 

tomeko

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Text or PDU is a local protocol between your device and modem, the other modem has no idea which protocol are you using.
There could be problem with second modem and device not supporting your encoding (7, 8 or 16 bit), but that's other problem.
 

gsmman

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if the modem is in the text modem, the modem will automatically generate the PDU ..isnt it... so over the air it is always PDU..r8?

regards
roy
 

tomeko

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Yes.
Translating in reverse way (PDU -> text) is not always possible though.
 

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