MicroSIP is not available for Linux but there are plenty of alternatives that runs on Linux with similar functionality. The best Linux alternative is Wire. It's not free, so if you're looking for a free alternative, you could try Wire or Linphone. If that doesn't suit you, our users have ranked more than 25 alternatives to MicroSIP and 11 are available for Linux so hopefully you can find a suitable replacement. Other interesting Linux alternatives to MicroSIP are Yate - Yet Another Telephony Engine, Callcentric, Twinkle and Blink.
Secure communication platform featuring encrypted chats and calls, file and media sharing, self-deleting messages, device verification, group collaboration, and customizable settings. Supports use across multiple devices with no phone number required for access.
Switzerland
Linphone is one of the most famous open source softphones in the world. It is fully SIP-based, for all calling, presence and IM features.
France
EU
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.
BulgariaEU
Yate is a softswitch (concept of separating the network hardware from network software).
The Callcentric Android app allows existing Callcentric customers to place calls worldwide using their Callcentric account.
United States
NetherlandsEU
YateClient is a free Voip Client (SIP / IAX / GVoice) and Instant Messenger (Facebook / GTalk / Jabber), with it you're permanently connected on multiple chat and telephony accounts.
Fully end-to-end encrypted business collaboration platform that is the only on the market supporting E2EE HD video conference up to 100 participants.
United States
Spreed is the worldwide unified web conferencing service offering integrated web and telephone conferencing. It is based on Flash Player. Free service includes 3 attendees and max 1.5h meetings. Single events or monthly service can be purchased.
GermanyEU
