3CXPhone (iPhone) - 3CXPhone for iPhone is a free VoIP Softphone that works with SIP based IP PBXs such as 3CX or Asterisk, as well as popular VoIP providers. 3CXPhone is not locked to a particular provider so you can switch easily.
What's New in This Release:
NEW:
· 3CX Tunnel Support
Acrobits Softphone for iPhone is a reliable and highly customizable SIP Client for iPhone. It features push notifications, multitasking, Google Voice integration, and more.
Please note that Acrobits Softphone is a SIP Client, not a VoIP service. You must have service with a VoIP provider that supports use on a standard SIP client to use it
ActionVoip for iPhone - ActionVoip allows you to make cheap calls from your mobile phone. The app uses your phone's wireless connection to place the call instead of your plan minutes, saving on costs.
ActionVoip works anywhere there is a 3G, WiFi, GPRS, Edge or UMTS connection available
Adore SIP Client (iPhone) is designed specifically to leverage the iPhone's unique capabilities and easy way to make a iPhone VoIP call by using iPhone devices. Featuring a comfortable and simple user interface iPhone sip client lets you connect your iPhone to standard landline or mobile phones
Amivox for iPhone - Amivox allows you to make cheap international calls and send low-cost SMS around the world.
What's New in This Release:
· New layout for the login and new number input layout
AVT Mobile - AVT Mobile is a convenient way to make cheap international calls. No need to memorize international numbers, or scratch cards. No need for WiFi or stable 3G. All you have to do is choose your international destination number and AVT Mobile will make a local call instead. It's that simple!
Please note that AVT Mobile is not a SIP application
barablu - Barablu lets you make free VoIP calls to other barablu contacts using your phone's WiFi connection. You can also make low-cost calls and send cheap SMS to GSM and landline phones.
In addition, the app lets you chat with other people all over the world using popular IM services
Bobsled Calling for iPhone/iPad - Bobsled Calling lets you make free calls to all your friends and family. Talk to any of your Facebook friends and make unlimited calls to any phone in US, Canada, and Puerto Rico.
Bobsled is a new way to communicate, centered around your social circle. This means one-touch calls with or without phone numbers
Bria iPhone Edition - CounterPath, the market leader of desktop and mobile VoIP software products and solutions, brings you Bria, iPhone Edition. Bria is an open standards, SIP-based softphone for the iPhone and iPod touch.
Bria iPhone enables you to securely connect and communicate easily and efficiently whether for business or personal use
EasyCallBack for iPhone - EasyCallBack allows you to make cheap international calls via 3G or WiFi from your mobile phone. Simply download the app, create an account, add some credit and start enjoying low-cost calls.
Calling someone is very easy. Start by entering the number you wish to dial. EasyCallBack will call you back and then will connect you to your destination