CounterPath Bria 3.3 for Mac User Guide - Retail Deployments - Manual (Page 62)

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Setting up the root certificate on your computer ensures that the connection to the proxy is TLS secure (the first
hop). Any proxy in the chain (between you and the caller) that does not support TLS may cause an insecure link
in the chain. Therefore, if the other party is outside your domain, you cannot be completely sure that the call is
secured at the signaling level, which means that you cannot be sure that it is secured at the media level.
Setting up for Security within Bria
The options for media encryption are described in the following table.
Table 8: Security Options
Option How Outgoing Calls are Handled How Incoming Calls Are Handled
Make and accept only
encrypted calls Bria will place all calls with TLS. The call INVITE
will specify SRTP media encryption.
If the correct certificates are not in place or if the
other party does not accept encrypted calls, the call
will fail.
Bria will only accept INVITEs that are for
encrypted calls.
If Bria receives a call INVITE that is not
encrypted, the call will be rejected.
Do not allow encrypted
call Bria will place only unencrypted calls.
If the other party does not accept unencrypted
calls, the call will fail.
Bria will only accept INVITE s that are for
unencrypted calls.
If Bria receives a call INVITE that is encrypted, the
call will be rejected.