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Administrator’s Guide SoundPoint IP / SoundStation IP
2 - 12
— Automatic Gain Control—Designed for hands-free operation, boosts
the transmit gain of the local user in certain circumstances.
— Background Noise Suppression—Designed primarily for hands-free
operation, reduces background noise to enhance communication in
noisy environments.
— Comfort Noise Fill—Designed to help provide a consistent noise level
to the remote user of a hands-free call.
— DTMF Event RTP Payload—Conforms to RFC 2833, which describes
a standard RTP-compatible technique for conveying DTMF dialing
and other telephony events over an RTP media stream.
— DTMF Tone Generation—Generates dual tone multi-frequency
(DTMF) tones in response to user dialing on the dial pad.
— IEEE 802.1p/Q—The phone will tag all Ethernet packets it transmits
with an 802.1Q VLAN header.
— IP Type-of-Service—Allows for the setting of TOS settings.
— Jitter Buffer and Packet Error Concealment—Employs a
high-performance jitter buffer and packet error concealment system
designed to mitigate packet inter-arrival jitter and out-of-order or lost
(lost or excessively delayed by the network) packets.
— Low-Delay Audio Packet Transmission—Designed to minimize
latency for audio packet transmission.
— Voice Activity Detection—Conserves network bandwidth by
detecting periods of relative “silence” in the transmit data path and
replacing that silence efficiently with special packets that indicate
silence is occurring.
— Voice Quality Monitoring—Generates various quality metrics
including MOS and R-factor for listening and conversational quality.
This feature is part of the Productivity Suite.
• Security Features
— Local User and Administrator Privilege Levels—Several local settings
menus are protected with two privilege levels, user and
administrator, each with its own password.
— Configuration File Encryption—Confidential information stored in
configuration files must be protected (encrypted). The phone can
recognize encrypted files, which it downloads from the boot server
and it can encrypt files before uploading them to the boot server.
— Custom Certificates—When trying to establish a connection to a boot
server for application provisioning, the phone trusts certificates
issued by widely recognized certificate authorities (CAs).
— Incoming Signaling Validation—Levels of security are provided for
validating incoming network signaling.