Initiate a conversation on a transactional network
When starting a conversation on a transactional network, state:
[reciever callsign(s)],
(this is) [sender callsign],
(priority)
The other party(ies) respond with:
[sender callsign],
(this is) [reciever callsign]
THIS IS may (but is not required to) be ommitted if there is only a single reciever, or when responding.
PRIORITY is transmitted when the message has urgency over normal messages.