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What is the main difference between cloud and on-premise phone systems?

Cloud Versus On-Premise Phone Systems · 2026-06-14

Cloud and on-premise systems solve the same core communication problem in different ways. Cloud services host most call control off-site, while on-premise systems keep the main platform at the customer location. The comparison should cover internet resilience, remote work, call-routing complexity, integrations, capital versus subscription costs, handset needs, support, data requirements, growth and the risk of losing features during migration.

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