Cloud Communications Terminology


Failover is an essential operation that commands backup systems to take over when the primary system fails. Failover:

  • Is a resilient proxy for critical networks that rely on 24/7 accessibility;
  • Ensures seamless operation within a network; and
  • Prevents interruption for the end-user.

Many Voice over Internet Protocol (VoIP) carriers have the ability to provide failover services tailored to the needs of customers. For instance, if Session Initiation Protocol (SIP) or public switched telephone network (PSTN) devices cannot receive calls, the calls can be automatically rerouted to another SIP destination or PSTN number specified in the service level agreement.

See also: Intelligent Call Routing, Redundancy

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