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Pan series Voice over IP Intercom delivers perfect voice quality with only one cable connection. By using the SIP protocol, the Pan series IP allows two-way communication between peers using free VoIP conversation, a useful quality where long distance calls are needed. No matter where you are, you can control any door from any location in a widespread campus or a single building. Parking lots, universities, and hospitals are only a few of the potential uses for IP-based door phones.
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