Está escrito por mí hace tiempo en inglés 😉 .
This configuration allows you to call a PAP2 device directly via ip. I mean you can call without registering in a SIP server, for example because its down.
I use Line2 , but you can configure the line you want.
Enter on Admin Login, and Line 2 Advanced View.
1.- Select NAT Mapping Enable ->NO
2.- On Proxy and Registration select Register: -> NO . Too select Make Call Without Reg -> YES & Ans Call Without Reg-> YES
3.- On User ID: Put the number you want to have. For example 1.
4.- Later on Dial Plan select Enable IP Dialing:-> YES
Restart and save configuration.
Then to call this number, you have to do in other interface configured as this one , but with a different User ID. 2 for example.
How to call telephone One (1):
1*a*b*c*d*port(5060 or 5061)# and you will have an incoming call on the telephone you called to.
a, b,c,d means 8 bits digits of IP (10.0.0.1, etc….).