[CDV] Comcast To Unleash Free Phone Calling Over Wi-Fi.
Xfinity Voice service to allow free calls over Wi-Fi and other wireless data networks using mobile devices or PCs.
In addition, as part of the Voice 2go service, customers will be able to forward phone calls to up to four additional phones or devices, and Comcast will supply up to four individual phone numbers to family members for no additional charge.
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