Last updated on March 26th, 2018 at 09:01 am
In the CLI of the fortigate type the following:
config system settings set sip-helper disable set sip-nat-trace disable
Reboot the device!!!
In the CLI type the following:
Config system session-helper show
(now look for SIP, mostly it will be “12”)
Don’t use any protection profiles on the firewall of the sip rules.
We solved the no sound problem, bad sound problem