Polycom RealPresence 800s Administrator's Manual page 628

RealPresence Collaboration Server (RMX) 800s/Virtual Edition Administrator's Guide
Manually Added, Modified, Deleted System Flags
Flag
SEND_SRTP_MKI
SEND_WIDE_RES_TO_IP
SET_DTMF_SOURCE_DIFF_IN_
SEC
Polycom®, Inc.
Description
Enables or disables the inclusion of the MKI field in SRTP packets sent
by the Collaboration Server. Setting the value to NO to disables the
inclusion of the MKI field in SRTP packets sent by the Collaboration
Server.
Set this flag to:
• NO
 When all conferences on the RMX will not have MS-Lync clients
participating and will have 3rd party endpoints participating.
 When using endpoints (eg. CounterPath Bria 3.2 Softphone) that
cannot decrypt SRTP-based audio and video streams if the MKI
(Master Key Identifier) field is included in SRTP packets sent by
the Collaboration Server.
This setting is recommended for Maximum Security Environments.
• YES
 When any conferences on the RMX will have both MS-Lync
clients and Polycom endpoints participating.
 Some 3rd party endpoints may be unsuccessful in participating
in conferences with this setting.
Notes:
• This System Flag must be added and set to YES (default) when
Microsoft Office Communicator and Lync Clients are used as they all
support SRTP with MKI.
• The system flag must be added and set to NO when Siemens
phones (Openstage and ODC WE) are used in the environment as
they do not support SRTP with MKI.
• Polycom endpoints function normally regardless of the setting of this
flag.
Default: YES
When set to YES (default), the Collaboration Server sends wide screen
resolution to IP endpoints. Endpoint types that do not support wide
screen resolutions are automatically identified by the Collaboration
Server according to their product type and version and will not receive
the wide resolution even when the flag is set to YES.
When manually added and set to NO, the Collaboration Server does
not send wide screen resolution to all IP endpoints.
Default: YES.
If the ACCEPT_VOIP_DTMF_TYPE flag is set to 0 (Auto) this flag
determines the interval, in seconds after which the Collaboration
Server will accept both DTMF tones (inband) and digits (outband).
Default: 120
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