Introduction

Minisip is a SIP User Agent ("Internet telephone").
It can be used to make phone calls, instant message and videocalls to your buddies connected to the same SIP network.

Features:

SIP compliant (RFC 3261 and more)

Multiple lines (users) on the same phone

Multiple incoming/outgoing calls simultaneously

Runs on multiple Operating Systems (Linux PC, Linux familiar IPAQ PDA, Windows XP and soon Windows Mobile 2003 SE)

Focus on security: TLS, end-to-end security, SRTP, MIKEY (DH, PSK, PKE)

Instant Messaging

Video conferencing

Spatial audio

Push-to-Talk (P2T)

Full Mesh audio conferencing

STUN support

Call Logging

The source code is available as a number of libraries under the GNU Lesser General Public License (LGPL) and applications under the GNU General Public Licence (GPL).

Keywords:
Secure VoIP; SIP; MIKEY; RTP; SRTP; SDP; Video Telephony; Push-to-talk (p2t); Multi-platform; gtkmm; full-mesh.

I Want One!
You can download it for free from the download page.

The People
Minisip is developed by:

Ph.D and Master students at the Royal Institute of Technology (KTH, Stockholm, Sweden)

Non-KTH volunteer developers