Talk360 - Cheap Calls - Over 4 million people worldwide use Talk360 to stay in touch with friends and family, keep costs low on their travels or use as a back up for when their contract minutes run out
Zello: PTT Walkie Talkie - turn your device into a portative tralkie. Create private rooms and talk to your friends. You can start signal search to find all users within the application touch area. Add friends to the list of contacts to see their online status
TeamSpeak 3 for Android - TeamSpeak is a cross-platform VoIP software, operating under a client-server architecture, that allows you to enjoy voice group chats with other users in real-time
aSip (formerly known as SipPhone) is first native SIP/VoIP application. All calls are made directly to the SIP provider, no middle-man like customized proxy involved, so no voice delay and call quality is excellent
Acrobits Softphone for Android is a reliable and highly customizable SIP Client for Android. It features status bar 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
Bria for Android Phones - Bria is a powerful VoIP softphone for Android phones. It uses a 3G or WiFi connection to make and receive calls.
Bria offers superior audio quality with the included G.711, G.722, GSM, iLBC and SILK codecs
Bria for Android Tablets - Bria is a powerful VoIP softphone for Android tablets. It uses a 3G or WiFi connection to make and receive calls.
Bria offers superior audio quality with the included G.711, G.722, GSM, iLBC and SILK codecs