Avaya XT Series Deployment Manual page 251

H.235 is the protocol used to authenticate trusted H.323 endpoints and encrypt the media
stream during meetings.
Configure settings for securing calls as described in the procedure below. You can have up to
three remote encrypted participants in a videoconference.
Important:
Using encryption is subject to local regulation. In some countries it is restricted or limited for
usage. For more information, consult your local reseller.
Before you begin
If configuring from the endpoint, you must first enable advanced configuration, as described in
Enabling Advanced Maintenance on the XT Series
To encrypt SIP calls using SRTP, you must also secure communication between your video
network devices using TLS certificates and enable encryption (see
XT Series Using TLS
endpoints are encrypted, using a proprietary encryption protocol. You can choose to disable this
proprietary encryption protocol. When SIP Propriety Encryption is disabled, SIP calls on XT
Series terminals which do not support TLS or on which TLS is not enabled, will not be encrypted.
Procedure
1. Access the security settings. From the XT Series web interface, select Administrator
Settings > Calls > Encryption. From the endpoint's main menu, select Configure >
Advanced > Calls > Encryption.
2. Select Yes in the Enable encryption field.
3. Set the fields as described in
August 2020
on page 237). If TLS is not enabled, only SIP calls to other XT Series
Figure 128: Encrypting calls
Table 62: Configuring settings for securing calls
Deployment Guide for Avaya XT Series
Comments on this document? infodev@avaya.com
Securing Connections to the XT Series Using TLS
on page 151.
Securing Connections to the
on page 252.
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