Comparison of VoIP software
Voice over IP (VoIP) software is used to conduct telephone-like voice conversations across IP based networks. For residential markets, VOIP phone service is often cheaper than traditional PSTN phone service and can remove geographic restrictions to telephone numbers (i.e. have a "New York" PSTN phone number in Tokyo).
For enterprise or business markets, VoIP enables the enterprise to manage a single network (the IP network) instead of separate voice and data networks, while enabling advanced and flexible capabilities to the end user.
Contents |
General softphone clients
| Program | Operating systems | License | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
|---|---|---|---|---|---|---|
| AOL Instant Messenger | MS Windows, Mac OS, Linux | Freeware | SIP (MS Windows ver. only), RTP | Video, file transfer, PC to phone, phone to PC | ||
| BitWise IM | Linux, Mac OS X, Windows | Freeware / Closed Proprietary | Blowfish | File transfer, whiteboard | 1.7.2 | |
| Cisco IP Communicator | Windows | Closed Proprietary | SCCP (Skinny), SIP, TFTP | 2.1.4 (August 12, 2008) | ||
| Coccinella | FreeBSD, Linux, Mac OS X, Windows | GPL Free software | XMPP, IAX | Supports TLS/SSL and SASL | File transfer, whiteboard | 0.96.10 (September 24, 2008) |
| CounterPath X-Lite | Windows, Mac, Linux | Freeware | SIP, STUN, ICE | IM, single login account, for Windows and Mac also Conferencing, Video and SIMPLE based presence] | Windows and Mac: 3.0, Linux: 2.0 | |
| Ekiga (formerly GnomeMeeting) | Linux, (Beta Windows support) | GPL Free software | SIP, H.323, H.263, H.264/MPEG-4 AVC, STUN, Theora, Zeroconf | None | Video, IM, LDAP, Call Forwarding, Call Transfer | 3.0.1 (October 20, 2008) |
| Empathy | Linux | GPL Free software | SIP, XMPP (Jingle), ICE (STUN/TURN), Zeroconf | None yet | IM, multi-user A/V, collaborative applications | 0.23 (15-Jul-2008) |
| eyeP Media - Communicator | Windows | Closed Proprietary | SIP, STUN, ICE | SRTP, TLS |
|
6.0.4 |
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
|
Gizmo5 VOIP ITP SoftPhone |
|
|
SIP, XMPP, Jabber |
(Secure Real-time Transport Protocol) SRTP |
|
4.0.0.369 2008 May 21 -Windows 3.1.2 (v222) 2007 Oct 31 -MacOS (As of May '08) |
| Google Talk | Mac OS X, Windows XP/2000 | Freeware (libjingle is Free software | XMPP, Jabber | Video, chat, file transfer, voicemail, mail via "GMail Integration" | 1.0.0.104 | |
| iChat AV | Mac | Closed Proprietary | SIP AIM ICQ Jabber H263 H264 | Integrated, PBX independent | January 2007 | |
| Jabbin | Linux, Windows | GPL Free software | Libjingle, XMPP, Jabber | SSL | Instant messaging, file transfer, compatible with Google Talk | 2.0b2 |
| KCall | Linux (KDE) | GPL / LGPL Free software | SIP | 0.7.0 (2nd August 2007) | ||
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
| KPhone | Linux (KDE) | GPL Free software | SIP, STUN, NAPTR/SRV | SRTP | Video, voice, IM, external Sessions, IPv6 support for UDP | 1.0.2 (22nd September 2006) |
| Linphone | Linux and Microsoft Windows | GPL Free software | SIP | Video, IM, STUN, IPv6 | 1.7.1 (16 April 2007) | |
| Lotus Sametime | Linux and Microsoft Windows, Mac OS X | Closed Proprietary | SIP, SIMPLE, T.120 and H.323 | 7.5.1 (April 2007) | ||
| MindSpring (formerly Vling) | Windows 2000, Windows XP | Freeware | SIP, XMPP | Instant messaging, PC to phone, file transfer | 2.0 | |
| Minisip | Windows XP, 2000, Linux, Windows Mobile | GPL / LGPL Free software | SIP | SRTP, TLS, MIKEY (DH, PSK, PKE), end to end encryption | Video, IM Conferencing | |
| Mirial Softphone (Mirial s.u.r.l., formerly DyLogic) | Windows 2000/XP/2003/Vista | Closed Proprietary | SIP, H.323, RTSP |
|
6.0 (February 20, 2008) | |
| Mizuphone | Windows 2000/XP/2003/Vista | Freeware Closed Proprietary | SIP, SDP, RTP, STUN, ICE, UPnP, TLS, Tunneling Protocol, Ultra-wideband, G.711,G.722, G.723.1, G.726, G.729, Speex, GSM, iLBC, MPEG1, MPEG4, MJPG, Theora, H263, H264 | SSL/TLS, SRTP |
|
1.2.4 (November 8, 2008) |
| Mumble | Windows, Mac OS X, Linux, and BSD (server) | GPLv2 | Speex | SSL |
|
1.1.4 |
| ooVoo | Windows / Mac OS X | Shareware | Proprietary codec based on On2 TrueMotion VP7, Polycom Siren 14 | Up to six person multiparty video calls, video messages, instant text messaging, file transfer | 1.1 | |
| PhoneGaim | Linux (Linspire), Windows XP/2000 | GPL free software | SIP | |||
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
| QuteCom | Linux, Windows XP/2000, SmartPhone, Windows Mobile | GPL free software | SIP | AES-128 | Video, IM (MSN, AIM, ICQ, Yahoo!, Jabber, GoogleTalk), voicemail, wengo to phone. | v2.2 RC1 (Aug, 2008) |
| SightSpeed | Mac OS X / Windows | Freeware | SIP,RTP,Proprietary P2P protocol | video, voicemail, phone in, phone out, multiparty calling, conference recording, text messaging, NAT traversal, video mail | 6.0 | |
| SIP Communicator | Linux, Mac, Windows XP/2000 (all java supported) | LGPL free software | SIP/SIMPLE, Jabber | Text messaging | ||
| Skype | Windows 2000/XP, Mac OS X, Linux(32-bit i386 only), Windows Mobile | Freeware | Proprietary P2P protocol | AES-256, Skype Encryption | Video, file transfer, voicemail, Skype to phone, phone to Skype, additional P2P extensions (games, whiteboard, etc...) | 3.8.0.180 (Windows), 2.7.0.330 (Mac OS X), 2.0.0.72 (Linux x86), 2.2.0.45 (Windows Mobile Professional (Pocket PC)), 2.2.0.44 (Windows Mobile Standard (Smartphone)) (August 14, 2008 (Windows), May 14, 2008 (Mac OS X), March 27, 2008 (Linux), July 31, 2008 (Windows Mobile Professional (Pocket PC)), May 9, 2008 (Windows Mobile Standard (Smartphone)) ) |
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
| Teamspeak | Windows, Linux, Mac OS X (unofficial) | Freeware Closed Proprietary | conferencing | 2.0.32.60 | ||
| Tivi | Windows, many cell phones, Nokia smartphones | Freeware | tivi-to-land line | Video call: 0.127a, Lite: 0.602. | ||
| Twinkle | Linux | GPL free software | SIP | SRTP, ZRTP | 1.3.2 (August 24, 2008 ) |
|
| Vbuzzer | Windows XP | Closed / Proprietary freeware | SIP | TLS | IM (MSN), voicemail, personalized voice greeting. | 2.0.282 |
| Ventrilo | Windows, Mac OS X | Freeware Closed Proprietary | Conferencing, chat, text-to-speech | 3.0.4 | ||
| Windows Live Messenger | Windows 2000/XP | Freeware | SIP, RTP, proprietary | Video, voice, chat, text messaging, PC to Phone | ||
| wxCommunicator | Windows XP/2000 | GPL free software | SIP, STUN, TURN, ICE, | Voice, chat, recording, conferencing, multiple sip profiles | ||
| Yahoo! Messenger | Microsoft Windows, Mac OS (8, 9, X), (Linux/FreeBSD version not VoIP capable) | Freeware | SIP (using TLS) and RTP (media) | Video, file transfer, PC to phone, phone to PC | ||
| Zfone (formerly PGPfone) | Linux, Mac OS X, Windows | Viewable source / Proprietary license (includes time bomb provision) | SIP and RTP | SRTP, ZRTP | Beta 2008-09-04 (Linux 0.9.224), (MacOS 0.9.246), (Win 0.9.206) | |
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
Hosted services
| Program | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
|---|---|---|---|---|---|
| Jajah | Closed source | Connects together two conventional phones. |
Mobile phones
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Latest release |
|---|---|---|---|---|---|---|
|
Symbian 8 or 9 Windows Mobile 5 or 6 iPhone |
proprietary |
Session Initiation Protocol|SIP, Skype, Google Talk, MSN Messenger, Twitter, ICQ, AOL Instant Messenger|AIM, Yahoo |
?E |
?OC |
?LR |
|
|
Gizmo5 Mobile |
|
Freeware |
|
Yes |
|
1.15 (as of May '08) |
|
J2ME, S60, Windows Mobile and Windows |
Closed source, freeware |
GoogleTalk, Skype, SIP, AOL Instant Messenger, Windows Live Messenger, Yahoo! Instant Messenger, Jabber |
?E |
?OC |
0.9.6 |
|
|
Nokia-Symbian, iPhone |
Proprietary Freeware |
Session Initiation Protocol|SIP |
?E |
WiFi VoIP out & in, SMS over IP, call-through & call-back, connection management, provisioning |
4.0 Symbian, 1.11.1 iPhone |
|
|
Windows Mobile 6 Professional/Standard |
Freeware |
Session Initiation Protocol|SIP |
?E |
?OC |
?LR |
Frameworks and libraries
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Key and target markets | Latest release |
|---|---|---|---|---|---|---|---|
| Tapioca | Linux | GPL free software | Telepathy (software) | 0.3.9 (June 12, 2006) | |||
| Telepathy/Farsight | Linux, Mac OS X, Windows | LGPL free software | SIP, XMPP (Jingle), ICE (STUN/TURN), UPnP | None yet | Multi-user A/V conferencing, IM, collaborative applications | Mobile devices (Maemo), Linux Desktop | spec 0.17.8 (24-Jul-2008) |
Server software
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Key and target markets | Latest release |
|---|---|---|---|---|---|---|---|
| 3CX IP PBX | Windows Server XP, 2003, 2008 | Closed Proprietary | SIP | IP PBX, presence indication, IVR, automated phone provisioning, fax server, unified messaging, Outlook, Exchange integration, conferencing, outbound dialing | Small and medium enterprise (25-256 users) | 6.1 (October 2008) | |
| Asterisk PBX | Linux, BSD, Mac OS X | GPL free software / Proprietary | SIP, H.323, IAX | 1.4.22, October 2, 2008 | |||
|
FreeSWITCH PBX SoftPhone |
|
|
Session Initiation Protocol|SIP, STUN, XMPP, Jabber, Inter-Asterisk eXchange|IAX, FreeSWITCH |
|
Recording, Voicemail, Jabber IM, Google Talk, Proxy, Media gateway, Soft-PBX, IVR, |
|
1.0.0 (May 26, 2008) |
| GNU Gatekeeper | Linux, Mac OS X, Windows XP/2000, FreeBSD | GPL Free software | H.323 | Routing, Accounting, Authorization | 2.2.7, April 2nd, 2008 | ||
| Mysipswitch | Linux | BSD free software Open source | SIP, Ajax | SSL | SIP proxy server which allows the use of multiple SIP accounts with a single SIP login | Individuals | August 2007 |
| Objectworld UC Server | Windows Server XP, 2003, 2008 | Closed Proprietary | SIP | IP PBX, personal assistants, IVR, automated phone provisioning, fax server, unified messaging, Outlook, Exchange and Lotus Domino/Notes integration, conferencing, outbound dialing | Small and medium enterprise (25-2000 users) | 4.3 (September 2008) | |
| SIP Express Router (SER) | BSD, Linux, Solaris | GPL free software | SIP | SIP Registrar/Proxy, Authentication, Diameter, RADIUS, ENUM, and many others... | SIP Service Providers | 2.0.0 Ottendorf | |
| sipX ECS IP PBX | Linux | Open source L-GPL | Native SIP Call Control | HTTPS, TLS | Full redundancy (HA), plug & play management including phones and gateways, fully featured | Enterprises between 200 and 10,000 users, multi-site | 3.6, Feb 12, 2007 |
| Program | Operating systems | Licence | Protocols/based upon/compatible with | Encryption | Other capabilities | Key and target markets | Latest release |
See also


