Thanks for taking time to look.
I have two locations, an old location and a new location. The old location has a FREEPBX server setup and several working extensions setup all behind a
Dlink DIR-655 Hardware Version: B1 Firmware Version: 2.07NA
router. However I am unable to get the obi110 at the new location to successfully register to the pbx at the old location unless I put the PBX in a DMZ on the router(old location).
I've setup the router at the old location with port forwarding for TCP and UDP on port 5060 & 10001-20000 to the PBX.
The FREEPBX has no issues registering with the SIP provider.
I tried disabling the SIP ALG feature on the router and all the extensions at the old location lost phone service, so I have to assume it is required to be toggled on.
Any other configuration help would be appreciated, since we can't leave our PBX in a DMZ.
Thanks!
