AASTRA 4422 IP Office for BusinessPhone User Guide - Manual (Page 74)

Other Useful Features
BusinessPhone – Dialog 4422 IP Office 74
Least Cost Routing
Least Cost Routing (LCR) automatically selects the cheapest way
to establish the connection to the desired external number.
Please ask your system administrator if this function is installed in
your system.
If the extension has been configured to use LCR, each external call
will be analyzed and the cheapest way will be selected.
Use Least Cost Routing 0 z
Enter the digit(s) for external line access and the desired
public number.
The usual way of making an outgoing external call.
Note: Which digit to press for external line access depends
on the configuration of the system.
Calling Least Cost Routing
If LCR has been installed in your system, but your extension is not
configured to use it automatically, you also have the opportunity to
get the cheapest connection by dialling the LCR code before you
dial a public number. z
Enter the LCR code.
Please ask your system administrator for the LCR code. 0 z
Enter the digit(s) for external line access and the desired
public number.
Note: Which digit to press for external line access depends
on the configuration of the system.
You can also place the LCR code on a programmable key.