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Setting Up Voice Transcoding for TX Interface in LCP

SMARTPTT ENTERPRISE ONLY§

The procedure is applicable only to SmartPTT Enterprise.

Prerequisites§

  • Set up conventional channels in donor radio that match channels of repeaters installed on the same site.
  • Obtain the zone and position IDs of the LCP personality configured in the donor radio for the LCP system.
  • Obtain the zone and position IDs of digital channels configured in the donor radio and match by frequency and other criteria with LCP channels on the RF site.
  • Connect to Donor Radio.

Process§

  1. In the Configurator, on the Systems tab, expand NAI Systems → <name of the LCP system> → TX Interfaces → <name of the RG> → <name of the donor radio>, and then click Audio.
    Audio settings appear in the right pane.

  2. In the right pane, from the Codec field select the proper voice codec algorithm:

    • If RG transcodes the voice using G.711 with A-Law, select G711A.
    • If RG transcodes the voice using G.711 with μ-Law, select G711U.
    • If RG transcodes the voice using PCM Audio, select PCM.
  3. From the Format field, select a set of algorithm parameters which combination matches RG settings.
  4. In the bottom part of the Configurator, click Save  to save changes.
  5. To apply changes, click Restart in the bottom part of the Configurator.

See Also§