How to call and receive multiple calls at a time in gmail

Till now you can only call or receive single call at a time. Now gmail added multiple call and receive feature. Maximum of two outgoing calls allowed for physical phones, except that it will work on all call types voice, video and phone.

While you are in one incoming call , if you are receiving another call you will know it through notification, simply take the next call. Then first call automatically put in hold.

Related : BSNL started VVoIP Service to make cheap international Video and Audio calls

Suppose if you make an outgoing call and suddenly want to make another call, simply make another call first call automatically goes into hold mode. You can switch between two calls by using resume button.