Linphone is an open source internet SIP phone or Voice Over IPphone (VoIP).

ZoiPer Premium - includes all advanced features found in ZoiperGold.

Zoiper is a FREE IAX and SIP softphone application for voip callsover 3G or WiFi. There are NO ADVERTISEMENTS. For support pleasevisit: http://community.zoiper.com Zoiper softphone offers a simpleuser interface and superb audio quality for smooth Voice over IPexperience. Contact us for whitelabel versions with your logo andcompany or for our VoiP SDK if you want to build your own solutionor visit http://www.zoiper.com/en/voip-sdk Available for both SIPand IAX systems, Zoiper is a phone solution perfectly fit for endusers, service providers, call centers or any business willing tobenefit from VoIP communications. Want to distribute it to yourusers ? Use the free automatic provisioning system onhttp://oem.zoiper.com and avoid tedious manual configurations!.IMPORTANT: Zoiper softphone is a standalone client-side softwareVOIP phone application and is not bundled together with a voipservice. To make and receive voip calls using Zoiper, you mustsubscribe to any SIP or IAX based service provider across theglobe. Zoiper's key features include: - Support for different colorschemes - Bluetooth support - Lowest battery usage with highestreliability / stability on google play - Lowest latency of allandroid softphones - Excellent audio quality, even on older devices- Supports calling over 3G and WIFI - Multiprotocol with SIP andIAX support, compatible with all RFC compliant PBXs - Background /multitasking support - Integration with the native android contactlist - Speakerphone mute and hold - UDP and TCP transports (use TCPfor better battery life!) - Supports g711 (ulaw, alaw), speex, iLBCand gsm codecs - Supports sending of DTMF - DNS SRV - Built-in echocancellation - STUN support - Change ringtone per account - Callwaiting - Video support (gold users only) - ZRTP / TLS support(gold users only) - Call Transfer (gold users only) - Widebandaudio (gold users only) Zoiper is also available as customizedbranding solutions or VoIP SDK, please contact us for moreinformation. - Phones that are unstable because they have brokenaudio implementations: Alcatel one touch series (poor audio driverscause system freezes and crashes) HTC one m8 (causes freezes.)WARNING: using Zoiper as a default dialer may interfere withdialing 911 emergency services. WARNING: Please use only versionsfrom the appstore, we have reasons to believe some of the (russian).apk files floating on the web contain a trojan that might stealusername and password and make fraudulent calls. The officialzoiper from google play is safe to use.

Public beta of the new Zoiper SIP & IAX2 softphone for Android.Make and receive calls and send and receive messages through youroffice PBX or voip service provider. The main features of thecurrent release are: - Use Zoiper as default dialer - video calls -conference - multiple calls management - call waiting - calltransfer - chat - support for more than one account - SRTP and ZRTPencryption NOTE: This version can crash or miss some importantfeatures. It is not for use in a production environment. In-apppurchases(G.729, H.264 and GOLD) are disabled. If your devicecontinues to ring because of Zoiper, please use “Force Stop” fromthe Android settings to stop the application. Send us anybugreports on [email protected]

Your Anywhere Office: Voice, Video, Chat & Presence BusinessCommunication App

Talk, chat, meet, share whether at a desk, on the move, or workfrom home.

Groundwire, the leading Business SIP Client isnow available on Android. Packed with all the features a businessuser needs, Groundwire makes taking your office line with youeverywhere a breeze. Check out all these great features, with morecoming soon.•Push Notifications for incoming calls for improved batterylife•Multiline•Call Conferencing•Transfer and Attended Transfer•Voicemail•Call Forwarding•Bluetooth headset support•Secure calling through SRTP (SDES)•ZRTP support (through in app purchase), the latest in securecalling for SIP•Support for use on wifi and 3G networks•backgrounding support with status bar notification; check youremail or other tasks while still available for calls on theSoftphone•quick import of accounts from major VoIP Providers•call recorder and player, seamlessly integrated into the callhistory
•Bluetooth headset support
•HD Wideband audio through G.722 and Opus codecs•excellent sound quality, includes the G.711 (ulaw and alaw) andGSM audio codecs. Make an in app purchase to add G.729 Annex A forgreat quality over 3G networks•TLS support for encrypted SIP•audio codec manipulation, enabling you to prioritize the codecsused and disable ones you don’t want to use•comfortable and super-smooth user interface, fine-tuned speciallyfor Android•easy, intuitive configuration•simultaneous registration of multiple SIP accounts, have multipleaccounts registered to receive incoming calls and switch theaccount used for outgoing calls without leaving the keypad•Android contacts integration. Easy to call anyone in your contactsvia SIP•add new contacts directly from Groundwire•ability to generate DTMF tones while in call, to control variousPBX features or automated systems (use audio, rfc 2833 or SIPINFO)•speakerphone support•detailed call history•configurable RTP port range•SIP Proxy support•STUN server support, automatic service discovery using DNS SRVqueries•phone number resolution. We present the phone numbers in aconvenient format with grouped digits, display the flag and countryname and even region/city name for some countries, includingUSAGroundwire is a SIP Client, not a VoIP provider. It needs to beused in conjunction with a VoIP provider that supports use on a SIPClient to work.

Bria Enterprise for use with the Stretto Platform™ ProvisioningModule

IP phone client for smartphones with Android

Travel to any NoMachine-enabled computer at the speed of light.

Linhome is an open source app designed to interact with IP intercomsystems