1, GIZMO Project - It is the main rival to skype and has free calls from any landline in over 60 countries. Some restrictions do apply.
2, Wengo Another Skype like service which has IM , Video calls, free calls to Wengo users and calls to landlines for small fee
3, Internet Calls - Make free calls to all your online friends and regular phones in various popular destinations, or call any other number at the lowest rates around. I have used this and it has pretty decent rates.
4, VOIP Stunt - It is same as internet calls and has some amazing rates.
5, TESCO Another Wengo type internet phone based in UK (Thanks to Zoots)
6, Jajah - It is one of the innovative methods to get intouch with friends. All ur friends have to do is to register their phone number and open Jahjah account for free and u can call any Jahjah user using cellphone in Canada, US, HK, Taiwan , UK etc for free! Some restrictions according to site
Calls between JAJAH users are FREE under the following conditions:
* You and your friends have to use mobile or landline phone in Zone 1 (USA, Canada, China, Singapore, Hong Kong, Taiwan) or a landline phone in Zone 2 (mainly Europe)
* Your friend's phone number must be registered in JAJAH as one of his source numbers
* Your friend's account must be "active" (an account will become inactive after two weeks of no operation like a free call, a cheap call or sending a SMS)
* You have not exceeded the FAIR USE policy: 1000 minutes a month, five hours a week, 1 hour a day
Hope this guide and list of online phones may help u guys. Please keep this list among urselves and ur friends cos once there's widespread use Etisalat may ban some of em. U may publish this elsewhere provided due credit is provided.
-Sniper420