Refer to README_main.md for original README file

Connect Kamailio SIP server and 2 baresip clients

Configure Kamailio SIP server

• Install Kamailio from official tutorial: https://kamailio.org/docs/tutorials/5.8.x/kamailio-install-guide-git/
• Under "Ready To Rock" section of tutorial, add user agents to database using following commands:

kamctl add bob password
kamctl add alice password

• Check if user agents are added to database correctly:

mysql

mysql> show databases;
mysql> use kamailio;
mysql> show tables;
mysql> select * from subscriber;

• Configure Kamailio config file, replace xxx.xxx.xxx.xxx with your IP address:

vim /usr/local/etc/kamailio/kamailio.cfg

/* add local domain aliases - it can be set many times */
alias="mysipserver.com"

/* listen sockets - if none set, Kamailio binds to all local IP addresses
 * - basic prototype (full prototype can be found in Wiki - Core Cookbook):
 *      listen=[proto]:[localip]:[lport] advertise [publicip]:[pport]
 * - it can be set many times to add more sockets to listen to */
listen=udp:xxx.xxx.xxx.xxx:5060
listen=tcp:xxx.xxx.xxx.xxx:5060

systemctl restart kamailio.service

Configure baresip clients

• Build and install baresip: https://github.com/baresip/baresip
• It creates single configuration folder in ~/.baresip (https://github.com/baresip/baresip/wiki/Configuration)
• Change it with following command, baresip-ua1 is the folder where you built baresip:

baresip -f path-to-baresip/baresip-ua1/settings/

• Duplicate baresip-ua1, and rename it with baresip-ua2. Now, there are 2 baresip clients. We need to configure each as follows:

ua1:

vim path-to-baresip/baresip-ua1/settings/config

Change line of sip_listen

sip_listen              0.0.0.0:5070

vim path-to-baresip/baresip-ua1/settings/accounts

Add following line

<sip:[email protected]>;auth_pass=password;outbound="sip:xxx.xxx.xxx.xxx:5060;transport=tcp"

ua2:

vim path-to-baresip/baresip-ua2/settings/config

Change line of sip_listen

sip_listen              0.0.0.0:5050

vim path-to-baresip/baresip-ua2/settings/accounts

Add following line

<sip:[email protected]>;auth_pass=password;outbound="sip:xxx.xxx.xxx.xxx:5060;transport=tcp"

Start SIP session

• Start ua1

baresip -f path-to-baresip/baresip-ua1/settings/

• Start ua2

baresip -f path-to-baresip/baresip-ua2/settings/

• Create call with basic commands: https://github.com/baresip/baresip/wiki/Using-Baresip:-Basic-Commands
• Check if user agents are registered to db:

mysql> select * from location;