Paging is partially redundant with cellular mobile wireless networks,
yet it has a number of advantages that cellular networks cannot
emulate. Its extremely low power consumption for example makes paging
ideal for integration in user devices that fulfil a different primary
purpose. Paging is economical, so that the mass market entry threshold
is demonstrably lower than for other mobile wireless technologies.
Paging networks are an indispensable complement to cellular mobile wireless networks, especially when it comes to very fast, reliable transmission of small amounts of data with nationwide coverage and high spectrum efficiency to a large number of receivers at undefined locations for nearly simultaneous reception. Furthermore, paging does not share the following drawbacks of GSM, UMTS and LTE networks: