Telecor VS1 - How a Long Distance Call Is Routed

VS1 Installation, Configuration & Operating Guide 135
Least Cost Routing is enabled or disabled in each individual Extension port type configuration. See
“Setting up an Extension Port Type” on page 149 for more information.
Note The default number of Least Cost Routing entries is 1200. This number can be adjusted in
the System configuration 1 pane.
How a Long Distance Call is Routed
The LCR feature on the VS1 System performs a “starts with” search for outbound calls, which
means LCR does a First Match, Top Down search through Dial Strings. The Dial String sorts by 0
through 9, and then the wildcard x. Make the most economical or preferred entries first and in
descending order, as the list moves from Top Down. It is the installer’s responsibility to determine
carrier rate values.
The LCR checking process is shown in the following example:
1. The station user dials a phone number.
• A check of the extension’s toll restrictions is performed. If not toll restricted then…
2. If LCR is enabled, a check of the Least Cost Routing window is performed from the Top
Down.
3. When the first match is found in the window, any digits entered for the Access Code are
prefixed to the Dial String and then the call is routed through the LCR Line Pool.
4. If a match is not found in the window, the call is routed through the station user’s Line Pool and
Access Code.