Cisco TelePresence SX20 Administrator's Manual page 98

Cisco TelePresence SX20 Quick Set
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SIP Profile [1..1] Ice Mode
ICE (Interactive Connectivity Establishment, RFC 5245) is a NAT traversal solution that the
endpoints can use to discover the optimized media path. Thus the shortest route for audio and
video is always secured between the endpoints. NOTE: ICE is not supported when registered to
CUCM (Cisco Unified Communication Manager).
Requires user role: ADMIN
Value space: <Auto/Off/On>
Auto: When set to Auto, ICE will be enabled if a turn server is provided, otherwise ICE will be
disabled.
Off: Set to Off to disable ICE.
On: Set to On to enable ICE.
SIP Profile 1 Ice Mode: Auto
Example:
SIP Profile [1..1] Ice DefaultCandidate
This is the default IP address that the endpoint will receive media on until ICE has reached a
conclusion about which media route to use (up to the first 5 seconds of a call.
Requires user role: ADMIN
Value space: <Host/Rflx/Relay>
Host: The endpoint will receive media on its own IP address.
Rflx: The endpoint will receive media on its public IP address as seen by the TURN server.
Relay: The endpoint will receive media on the IP address and port allocated on the TURN
server, and is used as a fallback until ICE has concluded.
SIP Profile 1 Ice DefaultCandidate: Host
Example:
SIP Profile [1..1] Turn DiscoverMode
Set the discover mode to enable/disable the application to search for available Turn servers in
DNS. Before making calls, the system will test if port allocation is possible.
Requires user role: ADMIN
Value space: <Off/On>
Off: Set to Off to disable discovery mode.
On: When set to On, the system will search for available Turn servers in DNS, and before
making calls the system will test if port allocation is possible.
SIP Profile Turn DiscoverMode: On
Example:
D14908.10 SX20 Administrator Guide TC7.3, JULY 2015.
Introduction Web interface System settings System settings
SIP Profile [1..1] Turn BandwidthProbe
Not applicable in this version.
SIP Profile [1..1] Turn DropRflx
DropRflx will make the endpoint force media through the Turn relay, unless the remote endpoint
is on the same network.
Requires user role: ADMIN
Value space: <Off/On>
Off: Disable DropRflx.
On: The system will force media through the Turn relay when the remote endpoint is on
another network.
SIP Profile Turn DropRflx: Off
Example:
SIP Profile [1..1] Turn Server
This is the address of the TURN (Traversal Using Relay NAT) server that the endpoints will use.
It is used as a media relay fallback and it is also used to discover the endpoint's own public IP
address.
Requires user role: ADMIN
Value space: <S: 0, 255>
Format: The preferred format is DNS SRV record (e.g. _turn._udp.<domain>), or it can be a
valid IPv4 or IPv6 address.
SIP Profile 1 Turn Server: " _ turn. _ udp.example.com"
Example:
SIP Profile [1..1] Turn UserName
The user name needed for accessing the TURN server.
Requires user role: ADMIN
Value space: <S: 0, 128>
Format: String with a maximum of 128 characters.
SIP Profile 1 Turn UserName: ""
Example:
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