ABSTRACT
Global System for Mobile communications/Code Division Multiple Access (CDMA) cellular radio coverage and copper lines have both proven to be able to carry Internet Protocol traffic in always-on mode, using General Packet Radio Service, CDMA2000 and Digital Subscriber Line technologies. The bandwidth is sufficient for many services, and can still be increased, at the cost of huge investments though. Mobile and Fixed Operators have proven to be able to market messaging services on a per-message basis — as opposed to Internet Service Provider and new Next Generation Network Service Provider, which have to let instant messaging services be used for free. Most Mobile and Fixed Operators face some internal structural weaknesses, when attacking the market of new Next Generation Netork (NGN) services. NGN technology should also allow the Operators to reverse the business model for some services. Introducing Session Initiation Protocol/NGN technology will allow Mobile and Fixed Operators to mitigate their Weaknesses and fully exploit their Strengths.
