Cisco TelePresence ISDN Link
Contents
Introduction
About SIP URI options
HINT:
Defining options and numbers for reaching a user on the ISDN/NET network is more
convenient if you first define the user in the endpoint address book.
Dialling from the endpoint
Dialling from the endpoint is done using the SIP protocol. In order to inform the ISDN Link about
destination number to call etc, the following optional SIP parameters must be used. Each option
key or value is preceded with a semicolon, ";" .
x-h320number=NUMBER
Replace NUMBER with the destination number to call, normally consisting of digits. Please notice
that when dialling an ISDN network destination which requires sub-addressing, the sub-address
number is provided in the following format:
x-h320number=NUMBER*SUBADDRESS
When using the NET (External) interface, providing a number may not be required, and this option
can be skipped in those cases.
Furthermore, when using the NET interface, the NUMBER may consist of digits, * and #. In the rare
situation that a # is required in the number, it must be encoded as %23. So to dial 123#* on the
NET interface, NUMBER must be set to 123%23*.
Using restricted mode
x-h320restrict=true|false
Some networks (generally only applicable to North-America) only support restricted mode (ie
56kbps per channel instead of 64kbps per channel). By default, unrestricted mode is assumed.
Notice that the default restrict mode assumption can be changed with the following configuration:
xConfiguration H320 DefaultCall Restrict
Making audio calls
x-h320tlph=true|false
This option is used when making a simple audio only telephony call to an ordinary telephone
destination. Please notice that the x-h320restrict option has no meaning with this option, and must
not be used.
D14954.01
ISDN Link Administrator Guide IL1.0, June 2012.
Copyright © 2012 Cisco Systems, Inc. All rights reserved.
Getting started
Configuration examples
Configuration examples
14
Password protection
Appendices
Administrator guide
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