# Complementary network service

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In [telecommunications](/source/telecommunications), a '''complementary network service''' (CNS) is a means for an enhanced-service provider customer to connect to a [network](/source/telecommunications_network) and to the [enhanced service](/source/enhanced_service) provider. 

Complementary network services usually consist of the customer local service, such as a business or residence, and several associated service features, such as a [call](/source/telephone_call)-forwarding service.

==References==
{{FS1037C}}

Category:Telephone service enhanced features

{{telephony-stub}}

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Adapted from the Wikipedia article [Complementary network service](https://en.wikipedia.org/wiki/Complementary_network_service) by Wikipedia contributors ([contributor history](https://en.wikipedia.org/wiki/Complementary_network_service?action=history)). Available under [Creative Commons Attribution-ShareAlike 4.0 International](https://creativecommons.org/licenses/by-sa/4.0/). Changes may have been made.