License key required to activate the „Network Application Interface for Voice/CSBK“ feature in a DR 3000 / SLR 5500 repeater.
NAI for Voice/CSBK is an IP based interface that enables voice consoles to transmit and receive voice/CSBK calls to the radio system directly through the repeater.
Where a wireline voice console is required to interface to a given system site then all voice capable repeaters* at that site must have their „Network Application Interface for Voice/CSBK“ feature enabled using the CPS. Where a wireline voice console is not required to interface to a given system site, then repeaters at that site do not need to have this feature enabled.
Voice capable repeaters are all repeaters except for data revert repeaters and repeaters where both slots are GPS revert slots
*Note: Excludes Digital Voting Satellite Receivers.