SJphone - SJphone is a VOIP softphone that allows you to speak with any other softphone running on a PC/PDA, any stand-alone IP-phone, or using Internet Telephony Service Provider (ITSP) with any traditional wired or mobile phone.
It supports both SIP and H.323 standards and is fully inter-operable with most major VOIP vendors and ITSPs
4Talk is the easy way to turn your Pocket PC into a two way communication device suitable for short range transmissions. Pair two or more Pocket PC's to create a mini walkie talkie network, or use it in conjunction with your PC to create a continuous surveillance or baby monitoring device
Papaya - turns your phonebook into a fun and useful social network! It allows you to communicate with your friends cheaply and easily, no matter where you are. Using Papaya, you can play games with your friends, chat with them over IM, share pictures and other files, make cheap international calls, and more
MO-Call saves up to 95% on international mobile calls. MO-Call redirects your international calls to the Morodo network to avoid expensive calling rates.
Enter the code SOFTPROMO when you register for the exclusive FREE CREDIT.
U.S Dollar: $1.50 free credit.
Euro: €1.50 free credit.
British Pounds: £1.00 free credit.
HK: HK$15.00 free credit
SipToggle - allows you to toggle between Software Input Panels (SIP).
Features:
- Allows you to set one or more SIP's to toggle between. If you only set one then it will always set the SIP to the the specified one. If you set two or more it will toggle between all of them. You can also specify it to always pop up when you toggle
With S-unno, you can use your Windows Mobile phone to make phone calls to any fixed or mobile number in more than 200 countries at absolutely low rates. Rates start from as low as US 1cents/minute. S-unno uses your 3G or WiFi connection to place these calls so that you can start saving now
Skype - gives you free calls and instant messages to anyone else on Skype. It includes two great new features: SMS and file transfer. With 3.0 Beta, you can send text messages from your phone at Skype’s low rates, and send and receive files with your Skype contacts around the world – John Nguyen explains all in the video above
VoipCall is a similar program like VoipSMS, instead this one if for calling someone.
Instructions:
In order to use VoipCall, it's important to configure it first.
Go to options and set the following values on the first tab (Application Settings). Pause sign: p (lowercase, this is default, however unlikely your phone might have a different sign)