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Unified communications systems require specialized devices to route calls from the PSTN, to handle conference calls, or to transcode media streams. Examples include gateways, mediation servers, conferencing servers, and unified messaging servers.
In a Cisco or Avaya VoIP deployment, voice gateways or VoIP gateways route VoIP calls to and from the PSTN. Voice gateways provide important information about call performance and quality.
In a Microsoft environment, media devices play an essential role in call routing and processing, but do not provide metrics by SNMP. UC Monitor monitors the performance of the call legs that media devices handle and includes their metrics in performance reports.
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