Sip Features; Keep-Alive Feature For Persistent Tls Connections - Aastra 6700i series Instruction Manual

SIP Features

Keep-Alive Feature for Persistent TLS Connections

Now in 3.2.2, the keep-alive feature has been added for persistent TLS connections
only. Administrators can configure this keep-alive feature using the new parameter
called "sip persistent tls keep alive". When this feature is configured, the phone will
send keep-alive pings to the proxy server at configured intervals.
The keep-alive feature for persistent TLS connections performs the following func-
tionalities:
1. After a persistent TLS connection is established or re-established, activate the keep-
alive, which will send CRLF to peer periodically.
2. The phone will retry the connection automatically when a persistent TLS connection
is down.
3. When a persistent TLS connection is re-established (primary is up or primary is down
and backup is up), refresh registration of the accounts associated with the connec-
tion.
4. When a persistent TLS connection to primary is down, switch to backup if connection
to backup is working.
RN-001037-02 REV03 – 06.2011
Additional Information
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