Avaya XT Series Deployment Manual page 249

Procedure
1. From the XT Series web interface, select Administrator Settings > Protocols > SIP.
From the endpoint's main menu, select Configure > Advanced > Protocols > SIP >
Advanced.
2. Define the following settings:
Table 61: Configuring TLS Settings
Field
Transport Outbound Call
Use TLS
Verify Certificate
Certificate Hostname Validation
August 2020
Securing Connections to the XT Series Using TLS
Figure 127: Enabling TLS
Description
Select TLS to secure outgoing calls via TLS.
Select Yes to enable TLS functionality.
Select Yes to connect to other devices via TLS
only when the other device has certificates
signed by a CA recognized by XT Series.
Select No to connect to a device whose
certificate has not been validated.
Select Accept Validated Only to ensure that
only certificates with validated hostnames are
accepted by XT Series. This is the default policy
for certificate hostname and key/extended key
usage validation.
Select Accept Validated or same default
certificate to accept certificates which are
validated or which are the same as those
currently used by the XT Series.
Select Accept All to accept certificates without
performing a hostname validation.
Deployment Guide for Avaya XT Series
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