In a letter, the Government conveyed to Telecom Service Providers (TSPs) that "Blackberry interception solution is in the final stages of development and testing by RIM and the telecom service providers in conjunction with an Legal Intercepting (LI) vendor.
"The developed solution should be deployed in coordination with RIM and offered for testing to the respective TERM cells on or before 31-12-12.
"Failing to successfully demonstrate, a service/ services for interception as per norms laid by DoT, the blackberry service may be restrained to be offered to subscribers from 1-1-13 through your network," the letter sent by the DoT said.
This letter follows the responses of the TSPs in which they had given a time frame ranging from two to four months.
Apart from Vodafone which is ready to demonstrate the testing to the DoT, Airtel, Aircel sought 12 to 16 weeks, Loop Telecom four months and Tata by February 2013.
The responses have been received from all the TSPs except MTNL while BSNL which have not given any time frame, an official note said.
The DoT, in its communication recently, asked telecom operators about their readiness for deployment of interception solution in case of blackberry services offered by RIM through their network. .