Qute Messenger for Symbian - Qute is a cross-platform communication software that lets you make free phone calls, as well as send free text messages, voice messages and pictures. You can also enjoy fun group chats with friends all over the world. Qute provides advanced features such as intelligent search, contact backup and unknown message interceptor
Nimbuzz ? Free calls and messaging (for S60 3rd Ed. FP2) - Nimbuzz is free calls and messaging for the connected generation. Everything you need to communicate for free. You can import popular networks (Yahoo! Messenger, MSN Messenger, GoogleTalk, Facebook, AIM, MySpace, Hyves) and SIP (VoIP) accounts
CallMe (Series 60) - Cellular roaming costs are incredibly expensive. Rates for calls while roaming may be as much as 20 times the cost of calls from your home network.
The CallMe Personal CallBack application saves you money on international calls when roaming by having your contacts call you from their home network at the lowest possible cost
RoamCall (Series 60) - International calls from your mobile phone are very expensive, especially when roaming. Many Calling Card and Callback services and PBX devices offer lower costs by routing calls via the internet / VoIP
fring for Symbian 9.3 - fring gives you FREE video calls, voice calls and live chat to your fring buddies and to other friends on popular social networks: Google Talk, MSN Messenger, Yahoo!, AIM, ICQ, Twitter & SIP! Also, use fringOut to make low cost calls to any landline or mobile worldwide (from 1c a minute)
Nimbuzz ? Free calls and messaging (for S60 2nd Ed.) - Nimbuzz is free calls and messaging for the connected generation. Everything you need to communicate for free. You can import popular networks (Yahoo! Messenger, MSN Messenger, GoogleTalk, Facebook, AIM, MySpace, Hyves) and SIP (VoIP) accounts
MINO - VoIP on Symbian - Smart calling, BIG SAVINGS. enjoy your 30 FREE minutes to call anywhere.
Call from US to 40+ countries at 1.1 cents per minute between MINO users. Regular rates are form 2.2 cents per minute for most europe countries
Vopium GSM - SAVE up to 94% when you call international on your Nokia using Vopium ’s award-winning mobile phone app! Stay in touch with your family, friends and colleagues around the world from the freedom and convenience of your mobile phone. Download Vopium and try it free for 10 minutes to see how it works
IP CALL for Series 60 3rd Edition - "IP Call" application software is used to make IP Call on S60 mobile phone. As such, it saves costs. The usage of the application software depends on the provision of the operators