For some SMBs (small to medium-sized businesses), moving to IP telephony can be more complicated than it is for others. The reason: They have many peripheral devices and equipment connected to and working with their existing phone systems. The devices aren't conventional phones, but they provide voice communication to employees and visitors. Upgrading to an IP PBX requires upgrading such devices as well. Monterey, Calif.-based CyberData Corp. provides equipment making that possible. Its latest product is a set of VoIP indoor intercoms.
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