I'm looking to limit my business' incoming calls to those from people who have a passcode.
Does anyone know where I should start on this? Have been googling around forever, and nothing!
Find answers, share answers, discuss.
OK thanks, what VPN are you using ??
A good write up on SIP ALG: https://www.voicehost…
Thanks very much. Really appreciate it! :-D
Attached below is my latest OBIHAI UK configuratio…