Background
Sangoma manages a release cycle with Asterisk versions and Asterisk 18 is in Security Fix Only mode.
See:
Asterisk 20 LTS (EOL 2027-10-19) is its obvious replacement since Asterisk 20 still has the following modules compiled:
res_monitor
chan_sip
chan_mgcp
chan_skinny
chan_alsa
app_meetme
Asterisk 20 is the last version of Asterisk that will include these modules, all will be removed.
At some point in the future, before the Asterisk 20 EOL date (2027-10-19), Asterisk 22 or a subsequent LTS Asterisk release will have to be fully supported by ScopTEL. It is probable that Sangoma will announce Asterisk 22's EOL date and its replacement before that time.
Update Instructions
Toggling from asterisk18 is very simple. Just run the following commands:
scopserv_yum install asterisk20 -y
asterisk-switch --20
service asterisk restart
service scopserv_fastagi restart
Toggling from asterisk20 to asterisk18 is also very simple. If needed, just run the following commands:
asterisk-switch --18
service asterisk restart
service scopserv_fastagi restart