"The other operators can oblige and over time provide more capacity or stick to the original agreement as it is more beneficial to them since 50 percent of the installation costs is borne by them."
Airtel declined to comment on their E1 link rollout plans, calling it "strictly confidential information to the company".
Airtel had rolled out a media blitz and a highly visible below the line campaign with competitive tariffs.
The TRC is to issue request letters to existing celcos asking them to open up their interconnectivity facilities to Bharti Airtel.
"Bharti says the required E1 links (telecommunication exchange system) have not been given to them. We are going to request the existing players to facilitate the E1 links as quickly as possible," a senior official at the TRC who declined to be identified said.