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Administrator’s Guide - SoundPoint
®
IP / SoundStation
®
IP Features
56 Copyright © 2006 Polycom, Inc.
3.2.9 Last Call Return
The phone allows server-based last call return. This feature depends on support from a
SIP server.
3.3 Audio Processing Features
Proprietary state-of-the-art digital signal processing (DSP) technology is used to pro-
vide an excellent audio experience.
3.3.1 Low-Delay Audio Packet Transmission
The phone is designed to minimize latency for audio packet transmission.
3.3.2 Jitter Buffer and Packet Error Concealment
The phone employs a high-performance jitter buffer and packet error concealment sys-
tem designed to mitigate packet inter-arrival jitter and out-of-order or lost (lost or
excessively delayed by the network) packets. The jitter buffer is adaptive and config-
Central
(boot
server)
Configuration file:
sip.cfg
Turn this feature on or off.
• For more information, refer to 4.6.1.24 Feature <fea-
ture/> on page 144.
Specify the string sent to the server for last-call-return.
• For more information, refer to 4.6.1.12 Call Handling
Configuration <call/> on page 125.
Local
Web Server
(if enabled)
None.
Local Phone User
Interface
None.