Polycom® RealPresence Collaboration Server (RMX) 1500/2000/4000 Administrator’s Guide
4-40
Polycom, Inc.
Media Encryption
Encryption is available at the conference and participant levels, based on AES 128
(Advanced Encryption Standard) and is fully H.233/H.234 compliant and the Encryption
Key exchange DH 1024-bit (Diffie-Hellman) standards.
Media Encryption Guidelines
•
Encryption is not available in all countries and it is enabled in the MCU license. Contact
Polycom Support to enable it.
•
Media encryption is supported in CP, SVC Only and mixed CP and SVC Conferencing
Modes.
•
Endpoints must support both AES 128 encryption and DH 1024 key exchange
standards which are compliant with H.235 (H.323) to encrypt and to join an encrypted
conference.
•
The encryption mode of the endpoints is not automatically recognized, therefore the
encryption mode must be set for the conference or the participants (when defined).
•
Media Encryption
for
ISDN/PSTN
participants is implemented in RMX systems with
MPM+ and MPMx cards.
•
Conference level encryption must be set in the Profile, and cannot be changed once the
conference is running.
•
If an endpoint connected to an encrypted conference stops encrypting its media, it is
disconnected from the conference.
•
In Cascaded conferences, the link between the cascaded conferences must be encrypted
in order to encrypt the conferences.
•
Media Encryption
for
ISDN/PSTN (H.320)
participants is not supported in cascaded
conferences.
•
The recording link can be encrypted when recording from an encrypted conference to
the RSS that is set to encryption. For more information, see "
Recording Link Encryption”
on page
1-7
.
•
Encryption of SIP Media is supported using
SRTP
(
Secured Real-time Transport Protocol
)
and the
AES
key exchange method.
•
Encryption of SIP Media requires the encryption of SIP signaling - TLS Transport Layer
must be used.
•
Encryption of SIP Media is supported in conferences as follows:
—
All media channels are encrypted: video, audio and FECC.
—
Encryption of SIP Media is available only in MPM+ and MPMx Card
Configuration Modes.
—
RMX SRTP implementation complies with Microsoft SRTP implementation.
—
LPR is not supported with SRTP.
—
The
ENABLE_SIRENLPR_SIP_ENCRYPTION
System Flag
enables the
SirenLPR
audio algorithm when using encryption with the
SIP
protocol. The default value of
this flag is
NO
meaning
SirenLPR
is disabled by default for
SIP
participants in an
encrypted conference. To enable
SirenLPR
the
System Flag
must be added to
system.cfg
and its value set to
YES
.
—
The
SEND_SRTP_MKI
System Flag
enables or disables the inclusion of the
MKI
field in
SRTP
packets sent by the RMX. The default value of the flag is
YES
.
Содержание RealPresence 2000
Страница 26: ...RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide xxiv Polycom Inc...
Страница 36: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 1 10 Polycom Inc...
Страница 263: ...Chapter 5 Cascading Conferences Polycom Inc 5 27 3 In the Advanced tab s Node Type field select MCU 4 Click OK 1 3 2...
Страница 278: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 5 42 Polycom Inc...
Страница 284: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 6 6 Polycom Inc...
Страница 302: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 7 18 Polycom Inc...
Страница 534: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 16 80 Polycom Inc...
Страница 580: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 17 46 Polycom Inc...
Страница 616: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 19 30 Polycom Inc...
Страница 730: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 21 84 Polycom Inc...
Страница 842: ...RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 23 60 Polycom Inc...
Страница 882: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide 24 40 Polycom Inc...
Страница 894: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide A 12 Polycom Inc...
Страница 962: ...RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide E 4 Polycom Inc...
Страница 968: ...RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide F 6 Polycom Inc...
Страница 1060: ...Polycom RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide H 80 Polycom Inc...
Страница 1128: ...RealPresence Collaboration Server RMX 1500 2000 4000 Administrator s Guide J 18 Polycom Inc...