MicroSIP is not available for iPhone but there are plenty of alternatives with similar functionality. The best iPhone 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 14 are available for iPhone so hopefully you can find a suitable replacement. Other interesting iPhone alternatives to MicroSIP are Bria, Callcentric, Line2 and SessionTalk SIP Softphone.
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.
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.
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.
Thoughtfully designed, Bria leverages over 10 years of softphone experience in improving productivity for our customers.
The Callcentric Android app allows existing Callcentric customers to place calls worldwide using their Callcentric account.
Line2 is a VoIP phone service that lets you call & text from a separate phone number via WiFi or 3G/4G/LTE. At a small premium, Text & call ANYONE in the US/Canada, forwarding & more. Pick any phone number.
With a superbly designed and intuitive user interface, the softphone offers easy set up with lots of preconfigured VoIP providers built in and smart call management features. Enjoy high quality enterprise communication features with zero effect on battery life.
Tragofone - a white-label softphone backed by WebRTC and auto-provisioning is a perfect choice to maintain uninterrupted business communication anywhere, anytime.
Silent Phone – Secure Encrypted Video & Voice Mobile Phone Calls
You now have the ability to have secure encrypted phone calls between Silent Circle members, anywhere, anytime, with complete control.
Make a secure call as easy as an ordinary call and be sure of real safety.
Fully end-to-end encrypted business collaboration platform that is the only on the market supporting E2EE HD video conference up to 100 participants.
Switzerland
France
EU
Bulgaria
Canada
United States
United Kingdom
Czechia
India
its not a SIP client, its PAID social network.