serout B.7, N2400, ("Hello")
I assume the "7" is the number of data bits.
I've tried the NewSoftSerial which allows inverted transmission, but I think it's the parity and stop bit that's causing the issues.
As I understand it the standard serial communication from the NewSoftSerial and indeed the SoftwareSerial Library on the Arduino is not 8,N,1 or am I mistaken.
Either way, what I got out the other end was gibberish (wrong symbols, and wrong number of symbols, implying the serial data was not getting through correctly).