What is pulse? Is it same for incoming and outgoing calls?
It is the minimum time period for which call is charged. It is only for outgoing calls. For example if the pulse rate is 20 seconds and call charge is Re. 1 per pulse then it means that every 20 seconds Re. 1 will be charged i.e. for one minute call (60 seconds) 20*3=Rs.3/- shall be charged. For international, Air time will be added.