Once you put credit on your account, you can do a "phone-to-phone" call for $5, where it will ring your phone, you pick up, an then it will ring the number you wish to call.
Elegiaque: Thank you for your suggestion. Actually, I seldom make international calls. Occasionally I have to call Canadian financial institutions or a Canadian government department. The former already have toll-free numbers for me to use and the latter accepts collect calls.
TheBrit: Thank you for your info. 10010 is PCCW's inquiry hotline. I was told by PCCW that they are not handling collect call requests.
It will cost you $100 to register the account with VoipDiscount and make the call... you would like to save that or prefer not to make an online purchase? Perhaps today I could be a good Samaritan and do a phone-to-phone for you if you send me a private with the number...