Cross-network HD voice calling starts between Airtel, Jio
Users across several circles have begun reporting cross-network HD Voice calls between Reliance Jio and Bharti Airtel for the first time, indicating silent testing of wideband audio interoperability. Traditionally limited to same-network calls, HD/VoLTE now appearing on Jio-Airtel calls suggests upgraded IP interconnect and harmonised VoLTE signalling.