Polycom CX5500 Unified Conference Station Administrator’s Guide 1.1.0
Polycom, Inc. 167
● Comfort Noise Fill Provides a consistent noise level to the remote user of a handsfree call.
● Dynamic Noise Reduction Provides maximum microphone sensitivity, while automatically
reducing background noise. The CX5500 system automatically supports this non-adjustable
feature. This feature is also known as Noise Suppression.
● 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, lost, or
delayed packets.
● Low-Delay Audio Packet Transmission Minimizes latency for audio packet transmission.
To troubleshoot any problems with your CX5500 system on the network, see Miscellaneous Maintenance
Tasks. For more information on the configuration files, see Configuration Methods. For more information
on the Web Configuration Utility, see Provision with the Web Configuration Utility. For instructions on how
to read the feature descriptions in this section, see Read the Feature Parameter Tables.
Customize Audio Sound Effects
You can customize the audio sound effects that are used for incoming calls and other alerts using
synthesized tones or sampled audio files. You can replace the default sampled audio files with your own
custom .wav audio file format. The phone supports the following .wav audio file formats:
● mono G.711 (13-bit dynamic range, 8-khz sample rate)
● mono L16/16000 (16-bit dynamic range, 16-kHz sample rate)
● mono L16/32000 (16-bit dynamic range, 32-kHz sample rate)
● mono L16/44100 (16-bit dynamic range, 44.1 kHz sample rate)
● mono L16/48000 (16-bit dynamic range, 48-kHz sample rate)
Note: Supported Audio Formats
The L16/32000 and L16/48000 wav formats are supported only on the CX5500 system.
Your custom sampled audio files must be available at the path or URL specified by saf.x in the table
Customize Audio Sound Effects so the phone can download them. Include the name of the file and the
.wav extension in the path.
Customize Audio Sound Effects
Central Provisioning Server
Specify a path or URL for the phone to download a custom audio file
Specify the name, type, and value for a custom sound effect
Web Configuration Utility
To add, play, or delete a custom audio file, navigate to Settings > Basic > Preferences > Ringtones and expand
the Custom Audio Files menu.
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