sngrep is a tool for displaying SIP calls message flows from terminal.
It supports live capture to display realtime SIP packets and can also be used as PCAP viewer.
On most systems the commands to build will be the standard autotools procedure:
./bootstrap.sh ./configure make make install (as root)
You can pass following flags to ./configure to enable some features
||Adds OpenSSL support to parse TLS captured messages (req. libssl)|
||Adds GnuTLS support to parse TLS captured messages (req. gnutls)|
||Adds Perl Compatible regular expressions support in regexp fields|
||Adds Ncurses UTF-8/Unicode support (req. libncursesw5)|
||Enable IPv6 packet capture support.|
||Enable EEP packet send/receive support.|
You can find detailed instructions for some distributions on wiki.
--help for a list of available flags and their syntax
For example, sngrep can be used to view SIP packets from a pcap file, also applying filters
sngrep -I file.pcap host 192.168.1.1 and port 5060
or live capturing, saving packets to a new file
sngrep -d eth0 -O save.pcap port 5060 and udp
You can configure some options using sngreprc file
Any feedback, request or question are welcomed at #sngrep channel at irc.freenode.net
See FAQ on Github Wiki
sngrep - SIP Messages flow viewer Copyright (C) 2013-2018 Irontec S.L. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. In addition, as a special exception, the copyright holders give permission to link the code of portions of this program with the OpenSSL library under certain conditions as described in each individual source file, and distribute linked combinations including the two. You must obey the GNU General Public License in all respects for all of the code used other than OpenSSL. If you modify file(s) with this exception, you may extend this exception to your version of the file(s), but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. If you delete this exception statement from all source files in the program, then also delete it here. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see <http://www.gnu.org/licenses/>.