Chapter 4-Additional Conferencing Information
Polycom, Inc.
4-3
SIP BFCP Content Capabilities
SIP Clients supporting
BFCP
over
UDP,
when connected to conferences on the RMX, can
share
Content
with
endpoints supporting the following
Content
sharing protocols:
•
BFCP/TCP
•
BFCP/UDP
•
H.323/ H.239
•
H.323 /Polycom Content
•
ISDN Content
Guidelines
For
SIP Clients
that support both
BFCP/TCP
and
BFCP/UDP
:
•
The preferred protocol is
BFCP/UDP
.
•
When used in
Cascading
conferences, the
Cascade Link
must be
H.323
.
•
BFCP/UDP
is supported in both
IPv4
and
IPv6
addressing modes.
•
BFCP
utilizes an unsecured channel (port 60002/TCP) even when
SIP TLS
is enabled. If
security is of higher priority than
SIP
content sharing,
SIP Content
can be
disabled. To do this manually add the
ENABLE_SIP_PEOPLE_ PLUS_CONTENT
System Flag
to the
System Configuration
and set its value to
NO
.
•
SIP Content
and
BFCP
capabilities are by default declared to all
endpoints. If,
however, the endpoint identity is hidden by a proxy server, these capabilities will not
be declared by the RMX. Capabilities declaration is controlled by the
ENABLE_SIP_PPC_FOR_ALL_USER_AGENT
System Flag
.
The default value of the
ENABLE_SIP_PPC_FOR_ALL_USER_AGENT
System Flag
is
YES
resulting in
BFCP
capability being declared with all vendors’ endpoints unless it is
set to
NO
. When set to
NO
, the RMX will declare
SIP Content
and
BFCP
capabilities to
Polycom
and
Avaya
endpoints.
•
The
ENABLE_FLOW_CONTROL_REINVITE
System Flag
should be set to
NO
when
SIP BFCP
is enabled.
•
If these
System Flags
don’t exist in the system, they must be manually added. For more
information see "
Modifying System Flags”
on page
21-1
.
•
BFCP capabilities are not supported in Microsoft ICE environment.
•
BFCP over TCP is not supported in
Ultra Secure Mode
.
Dial-out Connections:
•
For dial-out connections to
SIP Clients
,
BFCP/UDP
protocol can be given priority by
adding the adding the
SIP_BFCP_DIAL_OUT_MODE
System Flag
to
system.cfg
and
setting its value to UDP.
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