Needs work
Previous 1.1 had lots of call stability bugs but it appears that in 1.2 most has been resolved. Major outstanding issue is background noise. When talking on the car, restaurant, or mall, background noise as heard by the other end is unacceptable and not bearable. Tuning the mic gain and settings only produces minor improvements and not useful. Next version need to work out call quality and complete background noise suppression.
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Groundwire: VoIP SIP Softphone