Telecom Regulatory Authority Of India - Subsection
Section 2(f) in The Telecom Consumers Protection and Redressal of Grievances Regulations, 2007
(f)"Call Centre" means a department or a section or a facility established under regulation 3 by the service provider, falling in clause (a) or clause (b) of sub-regulation (3) of regulation 1 for redressal of grievances of its consumers by telephone or electronic means or by any other means;
