User`s guide

Setting up Meridian Mail security 6-15
Class of Service
Standard 1.0 System Administration Guide January 1998
Assigning a Class of
Service
The following table outlines various call types and indicates
whether they are possible within each Class of Service
assignment.
Class of Service assignment
Call type UNR CTD/CUN TLD SRE FRE FR1 FR2
Incoming
trunk calls
Yes Yes Yes Yes Through
call
modification
only (see
Note 1)
No No
Outgoing
non-toll
trunk call
Yes Yes Yes
Attendant
or station-
extended
only
Station-
extended
only
No No
Outgoing
toll trunk
call (see
Note 2)
Yes No direct
access.
Yes,
through
BARS,
NARS, or
CDP if
allowed
through
NCOS
Attendant
or station-
extended
only
NA No No
Incoming/
outgoing
TIE call
Yes Yes Yes Yes Yes Yes No
Station-
to-station
call
Yes Yes Yes Yes Yes Yes Yes
Note 1
: Call modification (transfer from station, call pickup, or transfer answer from any
station) may be allowed or denied for each system.
Note 2
: A toll call to the Meridian 1 is 0+ or 1+ dialing on a central office or foreign exchange
trunk.