VoiceGear SkyBridge User Manual - page 59
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Image 49: Advanced analog hardware settings
Details for each setting are shown in the table below.
Setting
Description
Reverse Polarity
This setting allows configuring system behavior for sending reverse polarity to the PBX. It
is possible not to send reverse polarity or to send reverse polarity during a call or after a
call. Sending reverse polarity after a call can improve the number of seconds it takes to
free up a line on certain PBX systems.
Number of Busy Tones
after Call Disconnect
In extension‐side analog configurations (see section 7.4), this settings configures the
number of busy tones to wait before assuming the line is disconnected.
Use Relaxed DTMF
This setting enables or disables the relaxed DTMF option which changes the way touch
tone key presses are interpreted by the system. Should you experience any problems with
DTMF entry, this setting can be adjusted to improve DTMF recognition. As a rule,
VoiceGear SkyBridge systems with advanced hardware echo cancellation require this
setting to be turned on, while those systems without advanced hardware echo
cancellation require this setting to be turned off.