1. Sick of IDD call cards that have expiry dates?
2. Long messy numbers to be keyed in before calls are made?
3. Inaccurate call charges?
4. Wondering how much airtime credit you have left?
5. Paying both parties for a discounted call service?
6. Have to call certain hours of the day to enjoy call savings?

Now with Vo15, the only thing you need to do is to call.