Cisco 6800 Series Administration Manual page 106

Servers Web Page Fields
Field
RTCP
Secure RTP
Secure RTP Auth
SRTP Crypto Suites
Media Security
Media Security only for TLS
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Contents
Values:
• Disabled
• Enabled (default)
Values:
• Disabled (default)
• Enabled
• Optional
• Auto
Values:
• Disabled (default)
• Enabled
Values:
• AES_CM_128_HMAC_SHA1_32
• AES_CM_128_HMAC_SHA1_80
Values:
• Enabled
• Disabled
Values:
• Enabled
• Disabled
Description
Indicates if RTCP is used.
Indicates the type of RTP to use.
• Enabled: Indicates if RTP is encrypted with AES-128 using
the key negotiated in the SDP protocol at call setup.
• Optional: Indicates that the system can send and receive with
SRTP and RTP.
• Auto: Indicates media security to use RTP or SRTP. If SRTP
is in use, RTP is blocked. When system uses SRTP, call
capacity reduces.
This option is added for Firmware Release 4.8.
Indicates if secure RTP uses authentication of RTP packets.
When enabled, a base can support a maximum of 4
Note
concurrent calls.
Indicates the list of supported SRTP Crypto Suites. Each device
starts with two suites. You can change the order of the suites.
Note If you change the list in any way, you must press Reset
Crypto Suites on this page.
This field is new for Firmware Release 4.8.
Controls the media security.
• Enabled: Client-initiated Mode—The phone initiates media
security negotiations.
• Disabled: Server-initiated Mode—The server initiates media
security negotiations. The phone doesn't initiate negotiations,
but can handle negotiation requests from the server to
establish secure calls.
This field is new for Firmware Release 4.8.
Controls the media security only if the SIP transfer protocol is
TLS.
Monitoring