These include:
- Global roaming: In a world of scarce spectrum and a variety of mobile access technologies, multi-band and multi-mode devices are a prerequisite. In its current work programme the NGMN addresses the key requirements.
- Convergence of network management: The large variety of technologies - even within a single operator's network - demand for an efficient management of fixed/mobile networks. This is a challenge for all major mobile network vkdqdmhzf.
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