I had the following doubts.

1) Can the User Data just have 7 bit ASCII data or we can also send 8 bit ASCII data by setting the DCS appropriately.

2) If we send data in USer Data Binary how should the data be coded as.

eg if i need to send 'Hi' in the parameter should the application be
coded as as

034:Hi<tab> (plain string)
034:4869<tab> ( hexadecimal)