Cisco TelePresence Administrator's Manual page 144

Setting Description
SIP SDP Determines whether requests containing SDP sent out to this zone have
attribute line the length of a=fmtp lines restricted.
limit mode
On: the length is truncated to the maximum length specified by the SIP
SDP attribute line limit length setting.
Off: the length is not truncated.
The SIP SDP attribute line limit option should normally be left as the
default of Off. However, some systems such as Microsoft OCS 2007
cannot handle attribute lines longer than 130 characters, so it must be set
to On for connections to these systems.
SIP SDP If SIP SDP attribute line limit mode is set to On, sets the maximum line
attribute line length of a=fmtp SDP lines.
limit length
SIP multipart Controls whether or not multipart MIME stripping is performed on requests
MIME strip from this zone.
mode
This option should normally be left as the default Off. However, it must be
set to On for connections to a Microsoft OCS 2007 Release 2 system.
SIP UPDATE Controls whether or not the VCS strips the UPDATE method from the
strip mode Allow header of all requests and responses received from, and sent to,
this zone.
This option should normally be left as the default Off. However, some
systems such as Microsoft OCS 2007 do not support the UPDATE method
in the Allow header, so for these zones this should be set to On.
Interworking Determines how the VCS searches for SIP endpoints when interworking
SIP search an H.323 call.
strategy
Options: the VCS sends an OPTIONS request.
Info: the VCS sends an INFO request.
This option should normally be left as the default Options. However, some
endpoints such as Microsoft Office Communicator (MOC) clients cannot
respond to OPTIONS requests, so this must be set to Info for connections
to a Microsoft OCS 2007 system.
SIP Determines whether INVITE requests sent to this zone filter out
UDP/BFCP UDP/BFCP. This option may be required to enable interoperability with
filter mode SIP devices that do not support the UDP/BFCP protocol, so this must be
set to On for connections to a Cisco Unified Communications Manager.
On: any media line referring to the UDP/BFCP protocol is replaced with
TCP/BFCP and disabled.
Off: INVITE requests are not modified.
SIP Duo Determines whether INVITE requests sent to this zone filter out Duo
Video filter Video. This option may be required to enable interoperability with SIP
mode devices that do not support Duo Video, so this must be set to On for
connections to a Cisco Unified Communications Manager.
On: the second video line in any outgoing INVITE request is removed.
Off: INVITE requests are not modified.
Cisco VCS Administrator Guide (X7.2)
Zones and neighbors
Default Applicable
to
Off Neighbor
zones
DNS
zones
130 Neighbor
zones
DNS
zones
Off Neighbor
zones
Off Neighbor
zones
Options Neighbor
zones
Off Neighbor
zones
DNS
zones
Off Neighbor
zones
DNS
zones
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