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The Settings Dialog ADTRAN IP SoftPhone User Manual
38 Copyright © 2006 ADTRAN, Inc. 61950859L1-1A
Audio Advanced
Figure 10 shows the Audio Advanced menu for the media configuration. Detailed information on these
configuration options is listed below. When the information is complete, select
OK to save the settings.
Figure 10. Media Audio Advanced Menu
Codecs
The ADTRAN IP SoftPhone allows the selection of various audio CODEC(s) to use for calls. Audio
CODECs describe the format by which audio streams are compressed for transmission over networks.
While some CODECs require less bandwidth than others, lower bandwidth often exhibits lower voice
quality.
With only one CODEC enabled, all calls made will use that particular audio compression format. The
G.729 CODEC consumes the lowest bandwidth, whereas the G.711 CODEC requires the most
bandwidth but provides the best voice quality.
Move CODECs to or from the enabled window using the arrow buttons. Adtran recommends that the
other settings in this menu not be changed from the default values.
Panic
The Panic settings configure the ADTRAN IP SoftPhone to adjust for variations in bursty packets.
Adtran recommends that the settings in this menu not be changed from the default values.