What can I do against poor voice quality / one directional Audio when using softphone?
Solution 1 (mostly helps against poor Audio quality)
Remove the following codecs from the list of available codecs in the SIP gateway on the XPhone Connect administration interface (Telephony > Gateways > SIP) or alternatively put them in the back of the list
Solution 2 (mostly helps against poor Audio quality and one directional Audio)
Poor voice quality during conferences in connection with Softphone may occur due to a set bypass media flag. Remove this flag in the SIP gateway on the XPhone Connect administration interface (Telephony > Gateways > SIP).
Solution 3 (mostly helps against poor Audio quality)
Set the following registry keys on your client computer:
Name: Do not use NLA
Also check the steps from the following article:
Solution 4 (applies from V9 (mostly helps against one directional Audio)
In some cases the registry keys mentioned below had to be set in V8. These can lead to the above mentioned problem in V9, accordingly we recommend to remove the following keys in V9 if you or your customer are affected by the issue.
Remove the following values: