PhoneGate Free 1.3 PC WM5
the author of this app says:
PhoneGate software is a protective screen from unwanted callers. It reacts to every incoming call, verifies the number and if necessary rejects (blocks) the call so that the caller hears the busy tone.
number of rings on device before the call is rejected from 0 (NO rings) to 7,
interface language (English, Russian, Spain)
The program recognizes different formats in which numbers can be recorded:
when international and national prefixes are indicated. In this case the numbers from Outlook Contacts are interpreted according to the rules of the country.
when international and area codes are not specified. In this case your record is completed with the country and, if necessary, your local area code that you have saved in PhoneGate Options.