The small box contains the phone, a USB dongle smaller than an iPod Shuffle, an installation CD, a USB to mini-USB cord and three AAA rechargeable Ni-MH batteries. Many similar products have been available for over a year, but they only work on Windows. Instead, this Keyspan phone is just a wireless USB handset, which requires the use of a computer to function. For instance, the Zyxel W2000 can connect to a SIP server though an ordinary WiFi access point without the help of a computer, because it has an 802.11b wireless interface and implements the SIP protocol. A real VoIP phone contains everything that's needed to hook up to a TCP/IP network (wired and/or wireless) and implements a telephony protocol such as the open standard SIP or the proprietary Skype. My biggest gripe with this specific product is that despite its name, it's NOT a VoIP phone. With the explosion of voice over IP applications, new devices appear everyday to supposedly ease our digital life, but the abundance of *standards* and protocols makes it difficult for the end user to figure out exactly what each product can accomplish. #Best cordless phones for voip Pc#
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