![](https://ftp.fau.de/fdroid/repo/icons/org.whitequark.sipcaller.1.png)
SIP Caller
Dial SIP numbersMIT
![](https://ftp.fau.de/fdroid/repo/org.linphone/en-US/icon_G0LG_yfcg9OhsnG4KMctTmcSa71iC8v2lFsDerfB_9s=.png)
Linphone - open source SIP client
SIP (VOIP) phoneGPL-3.0-only
![](https://f-droid.org/assets/ic_repo_app_default.png)
Sipdroid
A SIP (VOIP) clientGPL-3.0-only
![](https://ftp.fau.de/fdroid/repo/icons/org.lumicall.android.192.png)
Lumicall
SIP softphoneGPL-3.0-or-later
![](https://ftp.fau.de/fdroid/repo/icons/eu.siebeck.sipswitch.11.png)
SIP Switch
Access Internet call settingsGPL-3.0-only
![](https://ftp.fau.de/fdroid/repo/com.tutpro.baresip/en-US/icon_qFvR83vYRQa-9ynFsEeyDqc3r14pCAnvDikokQFVajY=.png)
baresip
VoIP User Agent app for Android based on baresip SIP libraryBSD-3-Clause
![](https://ftp.fau.de/fdroid/repo/com.tutpro.baresip.plus/en-US/icon_vBuevwx-XIkobAxYCCWa6z-nvbn2aFNCAC8PRKHTvn4=.png)
baresip+
VoIP User Agent app for Android based on baresip SIP libraryBSD-3-Clause
![](https://ftp.fau.de/fdroid/repo/cx.ring/en-US/icon_xFgaT3MKO0Xk_SsFT5dezfiNa_c5_DQFgPiYihj2hqM=.png)
Jami
Audio & Video Calls / Chat
Take Control of your Communication!GPL-3.0-or-later
![](https://f-droid.org/assets/ic_repo_app_default.png)
Nextcloud Talk
Have private video calls and chat using your own server.GPL-3.0-only