Caller / Called filtering

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Caller and called party number filtering enables calls initially directed to a given number (called filtered
number) to another number, determined according to:
- caller number,
- called number,
- installation status (day, night, status1, status2),
- the teleservice requested (telephone, fax, etc.).
Filtering applies to external, internal (ABC network) and local calls.
Filtering works with all types of protocol that provide called and caller numbers.