UbiPhone is a free, SIP-VoIP client application for your Android smartphone.
This softphone will work with a SIP based PBX system including Asterisk, FreePBX, Cisco and others.
-Wireless network connectivity support includes both WiFi and 3G
-Stun servers support
-HD audio and rich codec support: G.722 (HD), G.711a/u (PCM), G.729, GSM, speex, SILK, AMR and AAC-ELC (Full HD)
-IM (chat) feature enabled (only if VoIP provider supports it)
-UDP/TCP/TLS transport protocols supported
-VoIP media encryption (SRTP/ZRTP)
-Account creation wizard with multiple SIP accounts activation (up to 5) and remote account provisioning support
-Very intuitive and easy to interact with UI (reworked)
-Contact List which embeds the device's native contact directory
Important Note: UbiPhone is a standalone softphone that does not include any VoIP service and is powered by LibLinphone SDK (linphone fork) and comes with NO video support!
Copyleft (c) 2014 Stavros Kalapothas (aka Stevaras). This software is free and its source code is available and may be redistributed under the terms of GPLv2 Licence.