Vodafone Idea Ltd.

Idea Cellular, India's fourth-biggest cellular carrier has inked partnership pact with RealNetworks to offer ringback tone service (RBT) in India. RealNetworks will power dialer tones for 10 key circles in Gujarat, Rajasthan, UP West, UP East, Bihar, Orissa, West Bengal, Kolkata, Assam and North East. The subscriber base of these circles constitute about one third of Idea Cellular’s total base, who will now have access to globally advanced and innovative service features.

RealNetworks RBT service is available through 16 mobile operators in 10 countries around the world with 588 million subscribers.

Idea Cellular, an AV Birla group company, provides Global System for Mobile communications (GSM)-based wireless service at the pan-India level; it is present in all 22 telecom circles.