On a previous thread you implied that one could use the call back service on voipstunt if one didn't have the right equipment to make the call direct. I am using Windows 98SE . Could I use the ringback system and how would I go about it? I would appreciate your help.

Dependant upon which country / ies you want to dial for free would dictate which particular version you download.
But assuming Voipstunt covers your needs, you download the software from the homepage www.voipstunt.com
Set up your account and credit it with €11.60 . Of which only €10 is credit, the rest is V.A.T.
Once you open the program there is a box labelled "Direct Callback Nr". In here you type your number. At the bottom of the screen is a blank box for you to enter the target number.
Press the green dial button.
Your phone will ring, which you then pick up. You will hear a ringing tone as it dials the target.
Dependant upon the origin and destination would dictate your final charge.
Eg with voipstunt the callback connection fee is €0.03 and the cost to dial England is free. So from your UK landline to another UK landline, the total charge would be €0.03 for a max of 60mins, with a total of 300 free mins in a ROLLING 7 DAY PERIOD not a week.
But if you wanted to connect Afganistan with Angola, the the call would be €0.03 connection + per min charges of €0.53 (€0.29 Afg + €0.24 Ang)

This way no equipment is necessary other than an internet connect to initiate the call.

Hope this helps.

There should be no reason why it can't be used in France, but I assume you will need NT or above there also.
It is net based after all, so if it can't be registered as a french occupant, then just register as a UK resident. You'll get a landline number for the account, which might be ideal if you are English and in france.
Then your friends can ring your voip uk land number, but you can divert it to your french land, at no further cost to either party.
However, it might register subject to your ip address. In which case get it registered here before using over there.

There is a french version of the same thing called Netappel, but it's choice of countries is limited in comparison to others. At the moment www.voipdiscount.com offers the greater amopunt of free destinations.

Thank you Orsonkart.I tried the site you suggested and tried the free trial call. I tried a number in the US and  a number in France but got the message that these were not free destinations not withstanding the listing of free countries which includes both of these.