/*
Once you've called SrmExtOpen, you are limited to which BT library functions 
you can call. This is because the virtual serial driver takes exclusive 
control of the BT library.

*/

Characteristics of a server:
Passive (slave)
Waits for requests
Upon receipt of requests, processes them and then serves replies

Characteristics of a client:
Active (master)
Sends requests
Waits for and receives server replies
