Push-To-Talk Moving Beyond iDEN
Today, at the 3GSM World Congress in Cannes, France, Sony Ericsson unveiled the Z1010 dual mode UMTS/GSM-GPRS phone. The clamshell Z1010 features two built-in cameras, two displays and video support. The main display is a full graphic 65K color display and a gray scale status display is located on the front panel of the phone, for easy access to information when the phone is closed. The phone provides a 384Kbps doTechnology developers, hardware suppliers and wireless network operators are attempting to attack the market for push-to-talk handset services, an area now dominated by Nextel Communications and their iDEN network.
A key announcement comes from Ericsson, Nokia and Siemens, which say they are defining specs for an open standard intended to speed the availability of push-to-talk for GPRS networks. The new offering is based on the IP Multimedia Subsystem (IMS) specification of the 3GPP protocol for enabling IP connections between wireless handsets.
wnlink and a variety of messaging services such as SMS (Short Message Service), MMS (Multimedia Messaging Service) and video MMS.
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