I have a danymic sip phone in * and they work fine in local network, * and sip phone are in same LAN. My * has a public IP address behind a NAT, NAT/FW opens all port for this host IP. I take this sip phone to remote, it can’t register to * . (I use public IP at there) . In sip.conf, I set :
externip=218.249.xxx.xxx (my public ip)
localnet=172.16.0.154/255.255.252.0 --> this my local ip
SIP phone register to * , * display 403 error.
I use same extension config & same device , only * server IP is different.
Why can i get diffrent result ??
Pls help , thks