Alternatives to Linphone
An open-source SIP softphone for voice and video calls on desktop and mobile. The listings below can replace it for an important use case. Each note says what changes if you switch.
The original
Linphone
An open-source SIP softphone for voice and video calls on desktop and mobile.
Replacements
Listings that take over the same core job as Linphone.
Jami
A fully peer-to-peer communication platform with no servers relaying your data and no personal information needed to sign up.
Jami includes a SIP client along with peer-to-peer messaging and calls, but has no Android or iOS builds in this catalog.
MicroSIP
A lightweight open-source SIP softphone for Windows that makes voice and video calls through SIP providers.
MicroSIP is a lightweight GPL-2.0 SIP softphone with voice and video calls, but it runs only on Windows and has no mobile apps.
Cheogram
An Android XMPP client that links chat with phone numbers, SMS and calls through pluggable routes.
Cheogram is an Android XMPP client that adds calls and SMS through separate route providers, replacing a standard SIP account.
Also worth comparing
These listings name Linphone as their own alternative, so the relationship runs both ways.
Baresip
A portable, modular SIP user agent for audio and video calls, run from the command line.
Linphone is an open-source SIP softphone with graphical desktop and mobile builds, and the project offers a free SIP service, so it suits people who do not want a command line.
Zoiper
A SIP softphone for making VoIP voice and video calls through a PBX or SIP provider.
Linphone is an open source SIP softphone for desktop and mobile with a free SIP service from the project, replacing Zoiper's proprietary paid editions.
Similar software
Related functionality, not a direct replacement.
FusionPBX
A self-hosted web interface and platform for running a multi-tenant PBX on FreeSWITCH.
3CX Free Basic
A free edition of the 3CX business phone system for up to 10 users on your own infrastructure.
Signal
An end-to-end encrypted messenger for calls and chats on Android, iOS, Windows, macOS and Linux, run by a nonprofit.
Mumble
Free open-source voice chat app built for low latency and self-hosting.
ejabberd
An open-source XMPP server, MQTT broker and SIP service written in Erlang.