Send more than 160 characters using GSM modem

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Hi all,

I make a software for sending SMS for GSM Modem. It works fine. But my problem is now that it couldn't send more than 160 character.

The error is given below:
" Text is two long. A maximum of 160 resulting septets is allowed. The current input result in 288 septets(given by me)."

My code is given below when I click on my send button:

C#

// port connected successfully
pdu = new SmsSubmitPdu(message, cell, "");
comm.SendMessage(pdu);

Please help me to find the solution immediate in a short way. Because I have tried it for last two days. But got no solution.

Thanks in advance.

Posted 26-May-14 5:12am

Member 8454009

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NewPast 26-May-14 11:14am

please have a look at:
http://www.codeproject.com/Articles/676431/Machine-Controller

[no name] 26-May-14 11:35am

http://www.nowsms.com/long-sms-text-messages-and-the-160-character-limit

Member 8454009 26-May-14 11:42am

I couldn't find any C# code there.

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Vedat Ozan Oner · Answer 1 · 2014-05-26T12:18:00

It is nothing with your code. SMS has max length of 160 chars. It is built-in value for the GSM network and you can't do anything about it. there may be some configuration on SMSC to split a long SMS into smaller parts (with max length of 160) then send to the recipient as multiple SMSs, but again you can't do anything about it.
see here: http://en.wikipedia.org/wiki/Short_Message_Service[^]