Question about Server Tx

Hallo,

Here is not a question or bug report for JAIN SIP Stack, but a general
SIP Question, if it is not appropriat here, please ignored it. 

So application can decide if to create a Server Tx for a incoming
Requestor not. For INVITE and SUBSCRIBE, such dialog created Request,
they need Server Tx to generate final response and receive ACK (CANCEL
and ACK for 2XX have new CLient but the same Server Tx as initial
Request).
 
For such message INFO, Message, NOTIFY, without creating a Server Tx, I
have to send the response though SipProvider stateless? What is the
benifit that not creating a Server TX (save resource?) or there is any
policies.

urs Lebing