The function is available in some telephone networks and it allows receiving the other call at the moment of the actual conversation by the method of setting the active call in the waiting mode or cancellation. This will let not to miss an important call and to agree upon time when it will be possible to call back.
BD WHITE : 800 Minit 2100BDT
BD GREY : 1300 Minit 2100
INDIA : 2000 Minit 2100BDT
PAK : 710 Minit 2100BDT