Editing Overlay complex (section)

===Compromise===
Most overlay plans introduced the inconvenience of mandatory [[ten-digit dialing]] in which the area code must always be included even for [[local call]]s. Ten-digit dialing is not a technically necessary requirement, and 917 was initially deployed without it, but a US [[Federal Communications Commission]] (FCC) mandate instituted it at the demand of [[ILEC|major telephone companies]], to whom an overlay is considered a [[anti-competitive behavior|disadvantage]] to [[competitive local exchange carrier|competitor]]s.<ref name="fcc10digit">{{cite web
| author = FCC
| author-link = Federal Communications Commission
| url = http://www.fcc.gov/Bureaus/Common_Carrier/Factsheets/areacode.html
| title = Area Codes: Frequently Asked Questions
| access-date = June 22, 2006
| archive-url = https://web.archive.org/web/20060615015544/http://www.fcc.gov/Bureaus/Common_Carrier/Factsheets/areacode.html
| archive-date=June 15, 2006
}}</ref> In Canada, ten-digit dialing is also a requirement of the [[Canadian Radio-television and Telecommunications Commission]] in overlay area codes.