To: John Biddle who wrote (32560 ) 2/18/2003 6:51:42 AM From: John Biddle Read Replies (1) | Respond to of 196976 Ericsson, Nokia, Siemens join on GPRS/ EDGE push-to-talk spec By Stephanie Gordon, EE Times February 17, 2003 (12:20 p.m. EST) commsdesign.com Ericsson, Nokia and Siemens today announced that they are teaming up to jointly define specifications for a common operating standard for direct-call push-to-talk services over GPRS. This two-way form of communication, likened to that of Walkie-Talkies, uses the capabilities of the IP Multimedia Subsystem (IMS) as specified by 3GPP for enabling IP connections between mobile phones. Initial trials are expected to begin in the second half of 2003. Specifications created through the collaboration will be submitted to the relevant industry bodies in order to create a standard that will avoid fragmentation, the companies said in a statement. Their aim is to establish a unified push-to-talk over GPRS market with the same economies of scale that made GSM a global success, and to let mobile phones and networks be used for push to talk communication using a variety of radio access networks. The companies are also inviting mobile network operators and other manufacturers to join them in creating an open, multi-vendor market for push-to-talk for successive generations of GSM-related technologies including EDGE and WCDMA by developing products and services based on the open standard being developed. In support of the initiative, Rod Nelson, chief technology officer at AT&T, said: “AT&T supports this joint initiative. This new service, which will open to a broad audience, is another way to connect and is an example of how the scale and flexibility of GSM/GPRS/EDGE leads to new and cost-effective services.”