Calisto™ Pro with Mac Issue – From Plantronics

We have discovered an issue between Calisto Pro wireless headset firmware and Mac OS 10.5.7 (and later versions) that causes sound quality of Skype calls to deteriorate approx. 5-15 minutes into a call. This is not an issue caused by the Calisto Pro, but by changes that were made in the new Mac OS versions. We have not been able to identify a viable solution that allows us to support Skype calling for Mac beyond the versions supported today (Mac OS 10.4 up to 10.5.6). The Calisto Pro will work with Skype on a Mac if users do not upgrade to 10.5.7 or later versions. This issue does not exist for Calisto Pro users who are using Skype with a PC.

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