translate English to French: The competitors of the incumbent telephone companies which include incumbent telephone companies when operating outside of their traditional territories, continued to gain market share primarily due to the dramatic growth in local competition.
Les concurrents des compagnies de téléphone titulaires, qui comprennent entre autres les compagnies de téléphone titulaires qui exercent leurs activités hors de leurs territoires traditionnels, continuent de s'accaparer des parts de marché essentiellement grâce à la forte hausse de la concurrence locale.