EmVista Central

EMVista Central is a head-end voice communications system that allows the easy management and merging of voice paths such as Radio, Telephone, Intercom and Public Address.  Utilizing VoIP (Voice over Internet Protocol) it allows non-blocking communications with large scale capability.  Multiple Agent Workstations and additional voice path endpoints are easily added to the system with the snap of a network connection.



  • Receive calls from and initiate calls to any voice endpoint device that is accessible from the EMVista Central  network including PSTN phones, PBX phones, private analog and digital phones, radios, intercoms and PA Systems.
  • Monitor and control any EMVista Central call in progress, including joining, leaving, patching in or removing other voice endpoint devices.
  • Broadcast to user-created groups of page-equipped endpoint devices and enable other devices to do the same.
  • Monitor any combination of radio talkgroups, patch any number of radio talkgroups together, and connect voice endpoint devices to talkgroups.
  • Join radio talkgroups, with push-to-talk control.
  • Connect to third-party public address systems and enable other endpoint devices to do the same.
  • Log, record and playback all EMVista Central calls.
  • Monitor the current health of essential network equipment.
  • Log in with encrypted password and optional third-party authentication equipment.
The Servers

The Servers, typically two for redundancy, contain a software engine that manages all communications on the network. The database for the system may reside on the servers or on a separate database server.


The Maintenance Stations

The Maintenance Station provides the support interface for programming endpoint communication devices, setting up the communications structure and maintaining and testing the integrity of the system. The Maintenance Station can be located anywhere on the network.


The Agent Station

The Agent Stations provide the user interface for handling all communications that pass through the system. Agent Stations can be located anywhere on the network.

The SA1010 audio interface may be added to increase agent audio options.