Sequence Number is not incremented when sending large SMS

[oeil2lynx]

For all the segments of an SMS longer than 140 chars, the sequence number is the same.
It should not be.
For some SMSC, the connection is rejected and re-binded and the SMS is not fully sent.
It could give an Null Exception ins some case.

I forked the project to make fix the bug, do you want me to create a pull request ?

[oeil2lynx]

The sequence_number may range from: 0x00000001 to 0x7FFFFFFF.

sequence_number

size octects: 4

type: Integer

There is no specific requirement on how the sequence_number should be set. However, it is recommended that the sequence number be a monotonically increasing number.