SIP Softswitch
It is a device capturing and controling all the signals, which are being created by the whole system, especially the made and received phone call signals. The device is mostly used for connecting regular phone system with the Internet and backwards.
in2it System Ltd.
iCallbd looks and feels just like a regular phone, but instead of using a phone line, it uses your Internet connection. With iCallbd you can call any mobile or land line telephone and receive telephone calls from any mobile or land line telephone.
iCall
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