Section 6A(2) in Standards of Quality of Service of Basic Telephone Service (Wireline) and Cellular Mobile Telephone Service Regulations, 2009
(2)The terminating network shall, on expiry of thirty seconds in case of Cellular Mobile Telephone Service and sixty seconds in case of Basic Telephone Service, release the incoming voice call and transmit the call release message to the originating network:Provided that the originating network may release an unanswered call after ninety seconds in case the call release message is not received from the terminating network.]Section IVCUSTOMER PERCEPTION OF SERVICE FOR BASIC TELEPHONE SERVICE (WIRELINE) AND CELLULAR MOBILE TELEPHONE SERVICE
