Top 15 Flexisip Alternative and Similar Softwares | Dec 2024

1. Zoiper

Zoiper IAX & SIP multilanguage and multiplatform (Windows, Linux and Mac OS X) softphone is a VoIP soft client, meant to work with any IP-based communications systems and infrastructure.Zoiper Classic BIZ provides secure high-quality voice calls and conference, fax sending and receiving functionality, and enhanced IP-calling features wrapped in a...... TpSort Score | 145,000

2. Twinkle softphone

Twinkle is a soft phone for your voice over IP communcations using the SIP protocol. You can use it for direct IP phone to IP phone communication or in a network using a SIP proxy to route your calls....... TpSort Score | 25,000,000

3. Linphone

Linphone is an internet phone or Voice Over IP phone (VoIP). With Linphone you can communicate freely with people over the internet, with voice, video, and text instant messaging. Linphone makes use of the SIP protocol, an open standard for internet telephony. You can use Linphone with any SIP VoIP...... TpSort Score | 140,000

4. Telephone

Telephone is a VoIP program which allows you to make phone calls over the internet. It can be used to call regular phones via any appropriate SIP provider, including Google Voice via Gizmo5. If your office or home phone works via SIP, you can use that phone number on your...... TpSort Score | 141,000,000

5. CSipSimple

csipsimple will allow native sip for android device.It relies on the pjsip SIP stack and use the pjsip-jni project.The use of this native library will ensure a better speed, call quality and less battery consumption than equivalent pure java projects.Another point is that this project will be compatible with most...... TpSort Score | 22,600

6. kamailio

Kamailio® (successor of former OpenSER and SER) is an Open Source SIP Server released under GPL, able to handle thousands of call setups per second. Among features: asynchronous TCP, UDP and SCTP, secure communication via TLS for VoIP (voice, video); WebSocket support for WebRTC; IPv4 and IPv6; SIMPLE instant messaging...... TpSort Score | 28,600,000

7. DrayTek SIP SoftPhone

The DrayTek Softphone is a SIP phone in software which runs on any Windows PC. It provides full VoIP connectvity directly to the DrayTEL SIP service or can act as an extension to a DrayTek PBX. The softphone uses your PC's speaker/microphone, or for the best experience and more privacy,...... TpSort Score | 2,560,000

8. Siphon SIP

Home of the World's first free SIP/VoIP application for iPhone and iPod Touch 1 and 2.Siphon SIP/VoIP project is the first in his category that works on iPhone and iPod Touch 2 with headset for all SIP providers. It is a native application approved running on 2.X using internal micro/speaker...... TpSort Score | 4,970,000

9. Starfish PBX

Starfish PBX aims to be an open source alternative to Digium’s Switchvox. The goal is to have a software equivalent to which we can add additional functionality like:Configure additional, non-digium, telephony cardsProvisioning for wide range of VoIP phonesSupport for additional telephony hardware (ex: chan_mobile).Option to chose between different fax implementations...... TpSort Score | 5,140,000

10. QIP Infium

QIP Infium is a multiprotocol instant messaging client. It supports ICQ (OSCAR), Jabber (XMPP), Mail.ru Agnet (MRA), IRC, XIMSS, SIP, Twitter, Facebook and other....... TpSort Score | 290,000

11. Plum DEV

Plum DEV allows developers to build voice applications that automate a company’s most frequent communications. This includes everything from highly interactive customer self-service to communications-enabled business processes, and more. Helping businesses increase efficiency, lower costs, and improve customer satisfaction.Open Standard:As an open, programmable communications platform that supports VoiceXML development, DEV...... TpSort Score | 53,400,000

12. Ozeki Phone Systems

Ozeki Phone System XE is a Software PBX telephony platform for Windows. Ozeki enables your applications to connect PBX and access IVR, Webphone, SMS sending, 3D video calls and other functionalities. It makes possible to use PHP VOIP, .NET VOIP, VOIP SQL connections or HTTP requests for control and automate...... TpSort Score | 132,000,000

13. OctroTalk

OctroTalk is an Jabber/Gtalk client with support for GTalk (GMail) audio and Video calls. OctroTalk also supports SIP calling (through a provider of your choice). Features: 1 ) Connect securely to GTalk/Jabber 2) P2P Audio/Video Calling 3) Complete VOIP product. Access to PSTN via configurable SIP provider 4) Supports Low...... TpSort Score | 28,500,000

14. MicroSIP

MicroSIP is a free portable SIP softphone for Windows based on PJSIP stack. It allowing to do high quality VoIP calls (P2P or on regular telephones) via open SIP protocol. From cloud of SIP providers you can choose best for you, register account and use it with MicroSIP. You'll get...... TpSort Score | 28,500,000

15. Tpad

Tpad is a free program that uses the latest VoIP / SIP technology to bring free and crystal clear voice quality communications to any user all over the world. When you use the free Tpad software, you can call regular phones in various popular destinations for free or at ultra...... TpSort Score | 10,200,000