 designed to operate over both 2.5G and 3G networks. It makes use of newer and quicker mobile transmission methods, such as GPRS, HSCSD, EDGE, and UMTS. MMS involves attaching to messages multimedia extensions such as video and sound. MMS requires a new network infrastructure as well as MMS-enabled handsets. Unlike SMS and EMS, MMS is not limited to 160 characters per message. MMS will soon become a stan- dard feature and the default messaging mode for mobile phones. At the end of 2005, 278 operators were offering MMS service. Although at this time MMS roam- ing and intercarrier exchange are not widely available, that will certainly improve as more networks are deployed and more subscribers choose MMS over SMS. MMS supports standard image formats such as GIF and JPEG, video formats such as MPEG-4, and audio formats such as MP3, MIDI, and WAV. MMS standard- ization over GSM, GPRS, and W-CDMA is being managed through 3GPP. The dra- matic shift toward the use of phones equipped with cameras, illustrating the growing importance of imaging from high-end smart phones down to basic midrange and even low-end mobile phones, is creating a growing market for MMS services. 3G: Moving Toward Broadband Wireless Data service is expected to rise sharply as a traffic stream on wireless networks. However, the allotted wireless spectrum and the compression techniques we have traditionally relied on will not allow us to make use of the existing wireless infra- structure as if it were a wireless Internet, let alone a platform for the delivery of multimedia content and TV programming. Visual traffic will play a very demand- ing role in the future of telecommunications networks, and the problems that traf- fic poses are magnified many times over with wireless media. The future demands a new generation of infrastructure, and 3G is one step toward the broadband wireless realm. When you think about 3G, it is important to keep a number of things in mind. First, 3G is still under development. Although large-scale implementations were antici