SIP Switch is an online call management application, enabling you to use multiple SIP providers services from one piece of hardware and to manage all your calls on the fly: hang up, transfer, forward ...
Learn how to use Gizmo5 and Google Voice to easily make and receive free calls (pair with an ATA device, and be able to call using your home's land line!)
www.jrin.net/2009_07_26/use-gizmo5-for-free-calls-with-g<br/>oogle-voice
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