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Properly chosen and implemented, IP solutions for key business apps (interoffice voice networking, remote agent/home worker, IP PBX/LAN telephony, etc.) are cheaper to operate, maintain, and upgrade than comparable solutions using switched digital or analog phone service. In pursuing the benefits of VoIP, many IT managers are using the technology and assembling point solutions to their most pressing problems: seeing minimum investment and disruption while obtaining maximum bang for the buck. A second and perhaps third phase of network upgrades will eventually unify these solutions under a single converged architecture.
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