Clarity Communications Systems announced this week that its inTouch push-to-talk platform is ready for evaluation by wireless carriers and application service providers.

The session initiation protocol (SIP)-based solution delivers P2T capability over standard wireless packet data infrastructures and lets users place private and group half-duplex calls across one or more networks, the company said. In addition, the solution exhibits low latency over CDMA systems and offers spectrum efficiency that is 30% better than that exhibited by cellular voice calls.

The evaluation version is available now, with the commercial version expected to be available sometime in fourth quarter 2005, the company said.