pbx, video conferencing, live chat & more with ❱ 3cx ® all included with no hidden costs or add-ons. free for unlimited users ☛ try it today!

counterpath is a leading provider of innovative desktop and mobile voip software products and solutions. we offer a variety of voip desktop, mobile products and platform solutions and developer tools.

microsip is a portable sip softphone based on the pjsip stack available for microsoft windows operating systems. it facilitates high quality voip calls (p2p or on regular telephones) based on the open sip protocol.

your go-to website for anything voip (voice over ip). including voip software & hardware, service providers, tips and tricks, ip networks and ip telephony.

linphone is an open source sip client for hd voice/video calls, 1-to-1 and group instant messaging, conference calls etc. available for ios, android, windows, macos and gnu/linux.

citrustel offers free online calls. use citrustel to make free internet calls. free calls online without registration. make free phone calls online without download.

ready to get started with asterisk? asterisk is a free and open source framework for building communications applications and is sponsored by sangoma.

unlimited free calling & texting via wifi or cellular data without using cell minutes. call forwarding, voicemail, auto reply and spam call blocking features included. get yourself a 2nd phone number from dingtone!

free online calls from web browser to any mobile or landline phones. get started with us and you can talk with anyone anywhere in the world, using just a web browser or free calling app. try to make free international calls with ievaphone calling app right now.

internet- und telefonanschlüsse für privat- und geschäftskunden mit fairen vertragsbedingungen ohne vertraglaufzeit.