3Com NBX 100 Administrator's Manual page 131

Sample Solutions Using Dial Plan Configuration File Commands
Route 28 is the default route, so it is used at all other times than those
defined for route 29.
Example 1 If you make a long distance call at 2:00 p.m. on any Tuesday,
the system uses these timed route definitions, and:
Determines that the date is a valid business date.
Determines that the time is prior to 3:00 p.m.
Selects timed route 29.
Prepends 1010321 to the outgoing call to select the first long distance
carrier.
Example 2 If you make a long distance call at any time on any Saturday,
the system uses these timed route definitions, and:
Determines that the date is not a valid business date.
Selects timed route 28.
Prepends 1010220 to the outgoing call to select the second long
distance carrier.
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