baresip  0.5.5
Here is a list of all modules:
 accountLoad SIP accounts from a file
 alsaAdvanced Linux Sound Architecture (ALSA) audio driver module
 amrThis module supports both AMR Narrowband (8000 Hz) and AMR Wideband (16000 Hz) audio codecs
 aubridgeAudio bridge module
 audiounitAudio driver module for OSX/iOS AudioUnit
 aufileAudio module for using a WAV-file as audio input
 auloopApplication module for testing audio drivers
 av1The AV1 video codec (Experimental)
 avcaptureVideo source using OSX/iOS AVFoundation
 avcodecVideo codecs using libavcodec
 avformatVideo source using FFmpeg/libav libavformat
 b2buaBack-to-Back User-Agent (B2BUA) module
 cairoCairo video-source module is a video generator for testing and demo purposes
 codec2The CODEC2 audio codec
 consConsole User-Interface (UI) using UDP/TCP sockets
 contactContact module reading contacts from a file
 coreaudioAudio driver module for OSX CoreAudio
 daalaVery experimental video-codec using Daala
 debug_cmdAdvanced debug commands
 dshowWindows DirectShow video-source
 dtls_srtpDTLS-SRTP media encryption module
 dtmfioDTMF input/output module
 evdevUser-Interface (UI) module using the Linux input subsystem
 fakevideoFake video source and display module
 g711The G.711 audio codec
 g722The G.722 audio codec
 g726The G.726 audio codec
 gsmThe GSM audio codec
 gstAudio source module using gstreamer as input
 gst1Audio source module using gstreamer 1.0 as input
 gst_videoThis module implements video codecs using Gstreamer
 gst_video1This module implements video codecs using Gstreamer 1.0
 gtk_modGTK+ Menu-based User-Interface module
 h265The H.265 video codec (aka HEVC)
 httpdHTTP Server module for the User-Interface
 iceInteractive Connectivity Establishment (ICE) for media NAT traversal
 ilbcILBC audio codec
 isacISAC audio codec
 l16Linear 16-bit audio codec
 menuInteractive menu
 mpaThe mpa audio codec
 mwiMessage Waiting Indication
 natbdNAT Behavior Discovery Using STUN (RFC 5780)
 natpmpNAT Port Mapping Protocol (NAT-PMP)
 openglVideo display module for OpenGL on MacOSX
 openglesVideo display module for OpenGLES on Android
 openslesAudio driver module for Android OpenSLES
 opusThe OPUS audio codec
 ossOpen Sound System (OSS) audio driver module
 pcpPort Control Protocol (PCP)
 plcPacket Loss Concealment (PLC) audio-filter using spandsp
 portaudioPortaudio audio driver
 pulseAudio driver module for Pulseaudio
 rstAudio and video source module using mpg123 as input
 sdlVideo display using Simple DirectMedia Layer (SDL)
 sdl2Video display using Simple DirectMedia Layer version 2 (SDL2)
 selfviewShow a selfview of the captured video stream
 silkThe Skype SILK audio codec
 snapshotTake snapshot of the video stream and save it as PNG-files
 sndfileAudio filter that writes audio samples to WAV-file
 sndioThis module implements audio driver for OpenBSD sndio
 speexThe Speex audio codec
 speex_aecAcoustic Echo Cancellation (AEC) from libspeexdsp
 speex_ppAudio pre-processor from libspeexdsp
 srtpSecure Real-time Transport Protocol module
 stdioUser-Interface (UI) module for standard input/output
 stunSession Traversal Utilities for NAT (STUN) for media NAT traversal
 syslogThis module implements a logging handler for output to syslog
 turnTraversal Using Relays around NAT (TURN) for media NAT traversal
 uuidUUID generator and loader
 v4lVideo4Linux video-source module
 v4l2V4L2 (Video for Linux 2) video-source module
 v4l2_codecV4L2 (Video for Linux 2) video-codec and source hybrid module
 vidbridgeVideo bridge module
 vidinfoDisplay video-info overlay on the encode/decode streams
 vidloopA video-loop module for testing
 vp8The VP8 video codec
 vp9The VP9 video codec
 vumeterSimple ASCII VU-meter for the audio-signal
 winconsUser-Interface (UI) module for Windows Console
 winwaveWindows audio driver module
 x11X11 video-display module
 x11grabX11 window-grabbing video-source module
 zrtpZRTP: Media Path Key Agreement for Unicast Secure RTP