TANDBERG Gatekeeper User Manual
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an E.164 number.

proxy

On executing a proxy node the Gatekeeper will attempt to forward the call to the locations
specified in the current location set. If multiple entries are in the location set then they are
treated as different aliases for the same destination and are all placed in the destination alias
field. If the current location set is empty the call will be forwarded to its original destination.
It is important to note that when a proxy node is executed script execution stops immediately
i.e. there is currently no support for the proxy outputs busy, noanswer etc.

reject

If a reject node is executed the Gatekeeper stops any further script processing and rejects the
current call.
3.11.3 Unsupported CPL Elements
The Gatekeeper does not currently support the following elements that are described in the
CPL RFC. If an attempt is made to upload a script containing any of the following elements an
error message will be generated and the Gatekeeper will continue to use its existing policy.
time-switch
string-switch
language-switch
time-switch
priority-switch
redirect
mail
log
subaction
lookup
remove-location
3.11.4 CPL Examples

Call screening

Only allow calls from users with authenticated source addresses. See section 3.8 H.235
Authentication, for details on how to enable authentication.
<cpl>
<incoming>
<address-switch field=origin>
<not-present>
<reject/>
</not-present>
</address-switch>
</incoming>
</cpl>

Selective Call Screening