Question

I have strange peoblems with sending-receiving sms messages in Android.

I am using standart methods to do it:

SmsManager.getDefault().sendTextMessage(phone, null, message, sentPI, deliveredPI);

(please, don’t say that you are using sendMultipleMessages and all works fine, because there is no difference in these methods thoose can resolve my problem)

Before sending sms I am doing something like this: byte[] b = message.getBytes();
And I have got the following:

1. sending bytes from 1st emulator: [85]
   receiving on th 2nd emulator [85]

2. sending bytes from 1st emulator: [85, 94]
   receiving on th 2nd emulator [85, 94]

3. sending bytes from 1st emulator: [85, 94, 87]
   receiving on th 2nd emulator [85, 94]!!!!

In other words, sended bytes and received are different or have one or more mismatches!!!
This is a very simple example, only to show where the bug is.

Can anyone who used sending sms test it and post results on his emulator!?
Is this a problem with emulator?

Answer 1

My guess:

The default SMS charset is not the full Ascii spectrum.

According to this page the code 94 ('^') needs to be escaped.