Cisco TelePresence 7010 Help Manual page 40

Configuration
Table 25: SIP (continued)
Field Field description
Outbound Select the protocol that the TelePresence
transport Server will use for outbound calls (and
registrations, if enabled).
One of TCP, UDP, or TLS.
Advertise Select Use ANAT if you want the
Dual IPv4/IPv6 TelePresence Server to support SIP calls in a
mixed IPv4 and IPv6 network.
Negotiate Select whether the TelePresence Server will
SRTP using negotiate SRTP using SDES for either of the
SDES following options:
For secure transports (TLS) only
n
For all transports.
n
(Note this parameter only displays with the
Encryption feature key.)
Use local Check this option to allow the TelePresence
certificate for Server to present its local certificate when
outgoing registering with the SIP registrar (via TLS) or
connections making outgoing TLS calls. With this option
and unchecked, the TelePresence Server will
registrations never present its local certificate, even if
requested to do so.
Cisco TelePresence Server 7010 and MSE 8710 in Locally Managed Mode Printed Help (4.0)
Usage tips
The TelePresence Server uses this protocol for
communicating with the SIP registrar or trunk
destination.
If you have the encryption feature key installed
and want to encrypt signaling, select TLS.
The TelePresence Server accepts incoming
connections on whichever protocol the
connection uses (TCP, UDP or TLS), and will
respond using the same protocol, irrespective
of this Outbound transport setting. Make sure
that you enable those services on the
> Services page.
Default is Disabled. When configured to use
ANAT (Alternative Network Address Types), the
device supports ANAT syntax in the session
description. See http://tools.ietf.org/html/rfc4091
for more information.
The TelePresence Server supports the use of
encryption with SIP. When encryption is in use
with SIP, the audio and video media are
encrypted using Secure Real-time Transport
Protocol (SRTP). When using SRTP, the
default mechanism for exchanging keys is
Session Description Protocol Security
Description (SDES). SDES exchanges keys in
clear text, so it is a good idea to use SRTP in
conjunction with a secure transport for call
control messages. You can configure the
TelePresence Server to also use Transport
Layer Security (TLS) which is a secure
transport mechanism that can be used for SIP
call control messages.
The default setting is For secure transports
(TLS) only.
This option should be checked if TLS is in use.
Network
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