Comelit MT CT 01 - Manual (Page 40)

MT CT 01
MT CT 01 39
Example 2: permissive criterion
1st case: the branch dials 03467….
Since area code 0346 appears in the blocking table, the switchboard prohibits the call (dissuasion
tone at the branch and outside line freed)
2nd case: the branch dials 0517….
Since area code 051 does not appear in the blocking table, but appears in the enabled table relative
to carrier 1 i.e. 1022, the switchboard sends the call to number 10220517…..
3rd case: the branch dials 0955….
Since area code 095 does not appear in the blocking table, but appears in the enabled table relative
to carrier 2 i.e. 1055, the switchboard sends the call to number 10550955…..
4th case: the branch dials 10550872….
Since carrier 1055 appears in the carrier table, area code 0872 does not appear in the blocking table
but in the enabling one relative to the carrier in question, the switchboard allows the call.
5th case: the branch dials 10880872….
Since the carrier 1088 does not appear in the carrier table, the switchboard prohibits the call
(dissuasion tone at the branch and outside line freed).
6th case: the branch dials 105503467….
Since carrier 1055 appears in the carrier table, but area code 0346 appears in the blocking table, the
switchboard prohibits the call (dissuasion tone at the branch and outside line freed).