Different VOIP Software available for Pc and Mobile Phone

VoIP software is used to allow people to contact people via telephone-like voice or video conversations across IP based over a wide variety of networks.
There are a lot of different variations of VOIP software available, so it is important to conduct a VOIP comparison the software will do what you want and will work with your hardware before making a decision and purchasing a package. The VOIP software should be able to do four basic functions which are PC-to-PC calls or PC-to-phone and phone-to-PC calls, recording, support for outlook, voicemail, and making multi-user conference calls, but a lot of the VOIP software is able to do a wide variety of other tasks as well.

VoIP software for PC

To use a voip software in your pc you need :
• Any modern PC with a microphone and a speaker, or with a headset, or with USBphone.
• Reliable Internet connectivity like DSL, WiFi, cable or LAN. 28.8 dial-up modem may be enough if you use a codec compressing the speech to this bandwidth.
• Account with an Internet telephony service provider.
That is a list of the best Internet telephony applications available in market

Voip Programs PC to  PC PC to Phone Phone to Phone Adventage
Mobivox Yes Yes No free 10 min trial calls
Skype Yes Yes No unlimited FREE PC-to-PC calls
Pfingo Yes Yes No free 3 cents calls to many countries
Voipcheap Yes Yes No 300 free VoIP minutes every week
Jajah No Yes Yes

Conference Call

Yes No No
provides accounts can accommodate up to 96 users
Gizmoprojet No Yes Yes

Mobile Voip software:

To use a voip software in your mobile phone you need a handset with SIP capability and a network (e.g. WiFi, LTE, EDGE, 3G, WiMAX).

Mobile VoIP App
Mobile Dovice Support
VoipCheap iPhone,Nokia, Symbian, Android Wifi, 3G, GPRS, EDGE or UMTS - you can select which method when starting the application.
Fring iPhone; Windows Mobile, Symbian, Android, allows also to use Skype, MSN Messenger, ICQ, Google Talk, Twitter, AIM and Yahoo
JajahMobile Work with the Most smartphone No download required!
Skype phone iPhone,Nokia, Symbian,Android,WiFi phones,Sony PSP Free Skype-to-Skype calls and IM with Verizon Wireless, Skype-to-Skype, IM and global calls from Skype mobile™ don’t use your wireless plan minutes.
Gizmo5 Nokia gizmo Mobile VoIP app
Truphone iPhone; Blackberrys; Nokia handsets  
Talkonaut Java-based phones, Symbian, Windows Mobile free VoIP and IM chatting and supports Google Talk, ICQ, AIM, and Yahoo.