Push-to-talk over Cellular

Push-to-talk is a “walkie-talkie-type” service implemented over mobile networks. US operator NexTel first introduced the service on their iDen network almost ten years ago and the service has since its introduction shown impressive growth in popularity and created quite a buzz in the mobile industry. The first steps to introduce the service on GPRS are being taken, and at the same time issues like commercial viability and technical feasibility are on many peoples’ lips. In this white paper Northstream examines the feasibility of Push-to-talk over GPRS and provides some recent interesting findings.