Installation of PBX gateway and Asterisk Article
Download Ubuntu iso from this link and install as new VM
https://releases.ubuntu.com/22.04.3/ubuntu-22.04.3-live-server-amd64.iso
Download Asterisk 20
https://downloads.asterisk.org/pub/telephony/asterisk/asterisk-20-current.tar.gz
follows this guide to install Asterisk on Ubuntu
https://vegastack.com/tutorials/how-to-install-asterisk-on-ubuntu-22-04
(dont forget to add chan_sip in the menuselect step)
After following the manual we need to apply the following steps to use SIP instead of pjsip
1) edit this file: /etc/asterisk/modules.conf
add this part in drivers
load = chan_sip.so
2) change the pjsip binding to another port that 5060 by editing this file:
/etc/asterisk/pjsip.conf
3) change the sip binding to port 5060 by editing this file:
/etc/asterisk/sip.conf