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CHAPTER 8. MANAGING OUTBOUND CALLS 8-31
BETA DOCUMENT - PRELIMINARY & CONFIDENTIAL
n Schedule the use of different dialing services for the same number to
implement least cost routing.
You have three different carriers for
long-distance calls. One is the least expensive during business hours, one
during the evening hours of business days, and one during nights and
weekends. You would set up three dialing services for the three carriers.
In your routing service, create three routing rules, all of which match
long-distance numbers but are in effect during the three different times.
Have each rule route the calls to the appropriate dialing service.
An example of routing rules
Arrange your routing rules in the order you want them to be evaluated and
applied, top to bottom. There often are multiple rules to match the same phone
number. The first routing rule might be the least expensive long-distance option,
for example, while subsequent rules route to progressively more expensive
options.
The routing service in the following example has four routing rules (rules 5
through 8) that match the same set of numbers.
These rules work as follows:
1. Users are not permitted to place international calls with this access code.
This could be useful if you only want international calls to be placed by
users who have been given a special access code.
2. Stops calls to 900 pay-per-minute numbers. (But see “Adding new
routing variables” on page 8-38. You could replace
900
with a new
routing variable that matches all pay-per-minute numbers).
3. Route 411 calls to the
T1 line dialing service.
4. If all trunks are busy on
T1 line, stop processing and play a message
saying all lines are currently busy. This stop rule causes a much quicker
time-out when no lines are available.
Schedule
Digits dialed
New digits Action Service/Reason
1
Always 011~ Stop Invalid number
2
Always 1900~ Stop Invalid number
3
Always 411 411 Route 79 - T1 line
4
Always 411 Stop All lines busy
5
Weekdays 1NxxNxxxxxx 1010321NxxNxxxxxx Route 79 - T1 line
6
Always 1NxxNxxxxxx +1NxxNxxxxxx Route 79 - T1 line
7
Always 1NxxNxxxxxx +1NxxNxxxxxx Route 78 - All trunks
8
Always 1NxxNxxxxxx Stop All lines busy
9
Always ~ ~ Route 79 - T1 line