On a cumulative basis, vendors have shipped an estimated total of 696 million NGN voice ports in the wireless segment. There are over 4.6 billion wireless subscribers worldwide. There are an estimated 1.68 billion DS0s in the wireless network worldwide (source: iLocus). That means round about 41% of the total port capacity in wireline networks has migrated to NGN voice.
That leaves round about 59% to be converted i.e approximately 984 million ports. There is still a lot of growth left in wireless segment. By the end of 2010 the industry is expecting the subscriber base to touch 5 billion. VoLTE has a long way to go. As such we believe that in the wireless network there is plenty of further growth possible.
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