AT&T System 25 - Manual (Page 426)

Protocol
A set of conventions or rules governing the format and timing of
message exchanges to
e r r o r s .
Public Network
The network that can be
or long-distance calling.
Q u e u e
control data movement and correction of
openly accessed by all customers for local
An ordered sequence of tasks to be processed.
Q u e u i n g
. The process of holding calls in order of their arrival to await
connection to an attendant, to a DGC group, or to an outgoing trunk.
Calls are automatically connected in first-in, first-out sequence.
Random Access Memory (RAM)
A storage arrangement whereby information can be retrieved at a
speed independent of the location of the stored information.
Read Only Memory (ROM)
A storage arrangement primarily f o r information retrieval
applications.
Recall Dial Tone
Three short bursts of tone (confirmation tone) followed by steady dial
tone; indicates that the system has completed some action (such as
holding a call) and is ready to accept dialing.
Redirection Criteria
The information administered for each voice terminal that determines
when an incoming call is redirected to coverage.
G-13