The call hold feature helps you receive or make a second call (while on a current call) by putting the first call on hold. It can also be used to swap between the two ongoing calls.
What is Jio HD Voice and what are its benefits?
What all services are available through VoLTE ?
What is the difference between simple voice and HD Voice?
How can I identify a HD Voice call?
How can I deactivate call forwarding service?