Two to three times fewer sites are required for initial coverage at 700 MHz as compared to 2.1 or 2.5 GHz bands (Figure 15). The methodology is a general one that can be used for differing markets, and for a range of cellular system architectures. Care should be exercised when choosing input parameters to reflect the requirements of particular countries or regions. It also takes into account the time variations and regional variations in traffic and applies a technology neutral approach to deal with emerging as well as established systems.