Catalyst Communications Technologies, a leading provider of IP based dispatch and interoperability solutions to the public safety mobile radio market, introduced IP|25D™, a new capability that interfaces to the Daniels MT-4 Base Station and a new Daniels Universal Interface Card.  The new capability provides digital audio and digital control through an Ethernet interface.  Audio can be maintained in a digital format from the Dispatch position to the P25 portable radio, improving audio quality as analog to digital and digital to analog conversions that are common on the systems are eliminated.