iSkoot, a Cambridge, Mass. company that lets people make Internet calls on their mobile phones, has raised around $6.2 million in a first round of funding led by Khosla Ventures, first reported by PE Week.

iSkoot lets you use Skype through your mobile phone in a partnership with 3Group. This way you are not tethered to your PC. All you need is a data plan on your phone, and you can call people just like you would on Skype, saving money on international calls, for example. Standard data minutes would apply for your calls, so your local calls wouldn’t be any cheaper. For now, getting the iSkoot application for use with 3Group is free.

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