Cisco TelePresence Administrator's Manual page 73

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Zones
Setting Description
On: SIP requests sent to systems located via this zone are "poisoned" such that if they are received by this VCS again they will be rejected.
SIP poison mode
Off: SIP requests sent out via this zone that are received by this VCS again will not be rejected; they will be processed as normal.
SIP encryption mode Determines whether or not the VCS allows encrypted SIP calls on this zone.
Auto: SIP calls are encrypted if a secure SIP transport (TLS) is used.
Off: SIP calls are never encrypted.
This option should normally be left as the default Auto. However, this must be set to Off for Microsoft Office Communications Server (OCS)
2007 zones.
Determines whether requests containing SDP sent out to this zone have the length of a=fmtp lines restricted.
SIP SDP attribute line
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.
If SIP SDP attribute line limit mode is set to On, sets the maximum line length of a=fmtp SDP lines.
SIP SDP attribute line
limit length
SIP multipart MIME Controls whether or not multipart MIME stripping is performed on requests from this zone.
strip 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 strip mode Controls whether or not the VCS strips the UPDATE method from the Allow header of all requests and responses received from 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 SIP search Determines how the VCS searches for SIP endpoints when interworking 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.
Overview and System
Introduction
status configuration
D14049.08
November 2010
Zone configuration: advanced settings
Cisco VCS Zones and Clustering and
configuration neighbors peers
Call Bandwidth
processing control
73
CISCO TELEPRESENCE VIDEO COMMUNICATION SERVER
Default Applicable to
Off Neighbor zones
Traversal client zones
Traversal server zones
DNS zones
Auto Neighbor zones
Off Neighbor zones
DNS zones
130 Neighbor zones
DNS zones
Off Neighbor zones
Off Neighbor zones
Options Neighbor zones
Firewall
Applications Maintenance
traversal
ADMINISTRATOR GUIDE
Appendices