Setting Up Audio Features; Low-Delay Audio Packet Transmission; Jitter Buffer And Packet Error Concealment - Polycom SIP 2.2.2 Manual

Administrator's Guide SoundPoint IP / SoundStation IP

Setting Up Audio Features

Low-Delay Audio Packet Transmission

Jitter Buffer and Packet Error Concealment

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Set the roaming_privacy.reg element to the number corresponding
l
to the LCS registration.
For example, roaming_privacy.reg = 2
Refer to Roaming Privacy <roaming_privacy/>
m Save the modified phone1.cfg configuration file.
Proprietary state-of-the-art digital signal processing (DSP) technology is used
to provide an excellent audio experience.
This section provides information for making configuration changes for the
following audio-related features:
• Low-Delay Audio Packet Transmission
• Jitter Buffer and Packet Error Concealment
• Voice Activity Detection
• DTMF Tone Generation
• DTMF Event RTP Payload
• Acoustic Echo Cancellation
• Audio Codecs
• Background Noise Suppression
• Comfort Noise Fill
• Automatic Gain Control
• IP Type-of-Service
• IEEE 802.1p/Q
The phone is designed to minimize latency for audio packet transmission.
There are no related configuration changes.
The phone 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. The
on page A-99.