Sip extension i want it only connect from WAN not locally

Hello ladies and gentlemen

I have a sip extension running on my android phone. I want to use it only from WAN not within the local wifi (because i have different queues)

my internet connection is dynamic and i use the dyndns.org to gain access from WAN

i tried in the extension’s settings (sip.conf, but actually through the freePBX page) to deny/permit 0.0.0.0
127.0.0.1 etc various tries without any success

when i connect through the LAN the asterisk’s cli says:
sip extension 2 connected through 83.322.XX.XX:XXXX which is my wan ip address

(its the problem also of the modem/ router that has no option to not forward the ports requested from the LAN connected devices)
Do you have any idea please?
maybe to ban in my server, the XX.dyndns.org address i have?
thank you a lot :slight_smile: