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Subfield, Otherwise, Not-present – TANDBERG Security Camera User Manual

Page 174: Otherwise not-present, Cpl reference

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174

D14049.03
MAY 2008

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TANDBERG

VIDEO COMMUNICATIONS SERVER

ADMINISTRATOR GUIDE

Introduction

Getting Started

Overview and

Status

System

Configuration

VCS

Configuration

Zones and

Neighbors

Call

Processing

Bandwidth

Control

Firewall

Traversal

Maintenance

Appendices

CPL Reference

subfield

Within the

address-switch node

, the optional

subfield

parameter specifies which part of the address is to be considered. The following table gives the definition of subfields for each alias type.

If a subfield is not specified for the alias type being matched then the

not-present

action will be taken.

address-type

Either

h323

or

sip

, based on the type of endpoint that originated the call.

user

For URI aliases this selects the username part. For H.323 IDs it is the entire ID and for E.164 numbers it is the entire number.

host

For URI aliases this selects the domain name part. If the alias is an IP address then this subfield is the complete address in dotted decimal form.

tel

For E.164 numbers this selects the entire string of digits.

alias-type

Gives a string representation of the type of alias. The type is inferred from the format of the alias. Possible types are:

Address Type

Result

URI

url-ID

H.323 ID

h323-ID

Dialled Digits

dialedDigits

address-switch

The

otherwise

node will be executed if the address specified in the

address-switch

was found but

none of the preceding address nodes matched.

The

not-present

node is executed when the address specified in the

address-switch

was not

present in the call setup message. This form is most useful when authentication is being used.
With authentication enabled the VCS will only use authenticated aliases when running policy so
the

not-present

action can be used to take appropriate action when a call is received from an

unauthenticated user (see the example

Call Screening of Unauthenticated Users

).

otherwise

not-present