User's Manual

Configura
tion
Description Expected result Possible results
TCP +
TLS
IP
Deskphon
e: TLS
only
Server:
UDP +
TCP +
TLS
The IP Deskphone only
has TLS configured for
sending requests to the
server. The IP
Deskphone must have a
device certificate
installed if the server is
configured for mutual
authentication.
The IP Deskphone
registers using SIP over
TLS. If a device
certificate is provisioned,
and the server is
configured for mutual
authentication, then the
IP Deskphone provides
a certificate during the
TLS handshake.
Otherwise, server-only
authentication is used.
If the IP Deskphone is
unable to contact the
server, it waits a
configured period of time
before attempting to
reconnect.
UDP +
TLS:
unsupport
ed
Unsupported Unsupported Unsupported
IP
Deskphon
e: TCP +
TLS
Server:
UDP +
TCP +
TLS
The IP Deskphone
attempts to contact the
server using TLS first,
because TLS has higher
priority than TCP.
The IP Deskphone
registers the same as if it
was configured for TLS
only.
If the IP Deskphone is
unable to connect to the
server using TLS, it
attempts to connect
using TCP. If attempts to
connect using TLS and
TCP fail, the IP
Deskphone waits a
configured period of time
before attempting to
reconnect.
IP
Deskphon
e: UDP +
TCP +
TLS
Server:
UDP +
TCP +
TLS
The IP Deskphone
attempts to contact the
server using TLS first,
because TLS has higher
priority than TCP and
UDP.
The IP Deskphone
registers the same as if it
was configured for TLS
only.
If the IP Deskphone is
unable to connect to the
server using TLS, it
attempts to connect
using TCP. If attempts to
connect using TLS and
TCP fail, the IP
Deskphone attempts to
connect using UDP. If
attempts using TLS,
TCP, and UDP fail, the IP
Deskphone waits a
configured period of time
before attempting to
reconnect.
Security
234 SIP Software for Avaya 1100 Series IP Deskphones-Administration November 2012
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