Example: The operator begins operations and composes and transmits two messages:
System assigns message number 0001 to the first message and 0002 to the second.
The next received message is assigned message number 0003 and is stored in message
Each receiving station assigns its own message number to the message, which often
differs from the sending station's message number.
Message tracing is impossible unless the sending station places its message number
within the text of the message.
The DATE/TIME group of the message header can be used for identifica-
(3) Message numbers are assigned and reserved after the front envelope section of a
message is recognized by the system.
(4) Receive Message Numbering: Each time a message is received from a distant station,
the message is assigned a number by the terminal before the receive message is plac-
ed in message memory.
(5) Message Numbering Sequence: Messages entering message memory are assigned
numbers on a first-come, first-served basis. There are no numbers set aside specifically
for send messages or for receive messages.