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Application Note: NexLog Recording for Harris P25

Solution Overview:

Eventide IP-based voice logging systems provide archival and instant recall recording for the Harris VIDA P25IP trunked radio system. IP audio and call-related metadata are reliably captured and archived.  Recordings are instantly available for replay, research, incident reconstruction and export. The same NexLog recording system can also record 9-1-1 and NG9-1-1 interactions, administrative telephones and PC screens.

The NexLog integration with version SR10A2 and later also allows capture of GPS location data associated with P25 transmissions from GPS-equipped Harris P25 radios. The captured GPS coordinates for transmissions can be searchable and available for display on a map using Eventide MediaWorks Plus software.

Technical Details:

  • Recording interface via privileged VNIC connection
  • Supports P25 Phase 1, P25 Phase 2 and Analog (ADPCM)
  • Available OTAR integration to Harris KMF for automatic re-keying

Call Types Recorded:

  • Group Calls
  • Transmission Trunked Group Calls
  • Message Trunked Calls
  • Transmission Trunked Individual Calls
  • Message Trunked Individual Calls
  • Telephone Interconnect Calls
  • Patch Calls
  • Simulselect Calls
  • Emergency Calls
  • Analog (ADPCM) Calls

Metadata Captured:

  • Group ID
  • Group Alias
  • Caller ID
  • Caller Alias
  • Region
  • Agency
  • Emergency
  • GPS Coordinates (applies to SR10A2 and later). Requires GPS-equipped Harris P25 radio terminals.  GPS location/display also requires Eventide Media Works Plus browser-based replay software, Eventide Geo Search license option, and Google Maps access from the replay PC(s).

Harris Validation:

  • The NexLog recorder for P25 has been tested and validated at Harris’ lab in Lynchburg VA. 
  • As of February 2018, the Harris validation is applicable to the following versions:
    • SR10A
    • SR10A1
    • SR10A2
    • SR10A3
    • SR10A4
    • SR10A5