Reference:Administration/PBX/Filter

In the innovaphone PBX, it is possible to define global call filters. In this way, various rights for phoning can be assigned to, or withdrawn from, the users.

Call filter section

• Name: The descriptive name of the filter. The name may not be ok or nok , since these names refer to filter properties.
• Not / Boolean: A filter can be made dependent on the state of a Boolean object. If a Boolean object was defined here, the filter is only effective if the Boolean object is set to true, unless the Not check box is checked. Then the filter would only be effective if the Boolean object is set to false.
• Number: The call number or prefix to be filtered.
• Next (ok/nok/filter): Possible entries: ok, nok, Filter name (for calling up a further filter with the designated filter name).

Here are a few filter examples:

Example 1 (allow only internal calls)	Name: Internal Prefix: 0 Action: nok Result: Only internal calls. All calls beginning with 0 are blocked.
Example 2 (allow only internal calls with exceptions)	Name: Internal_ext Prefix: 0 Action: nok Name: Internal_ext Prefix: 0110 Action: ok Name: Internal_ext Prefix: 0112 Action: ok Result: As in example 1, with the exception that, here, the police and the emergency number may be called.
Example 3 (allow only national calls to Austria and to Switzerland)	Name: National_ext Prefix: 00 Action: nok Name: National_ext Prefix: 0041 Action: ok Name: National_ext Prefix: 0043 Action: ok Result: As in example 1, with the exception that, here, national calls to Austria and to Switzerland may be made.

IP Filter section

In the IP Filter section, you can define global IP address filters to protect the innovaphone PBX from unauthorised access:

• Address: The network address to be filtered.
• Mask: The associated network mask.

On the networks defined here, one registration per PBX object without password is possible. If nothing is configured here, a registration without password is possible from any IP address.

Boolean section

In the Boolean section, all objects that were created as a Boolean object in the chapter entitled "Administration/PBX/Objects" are displayed.

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