[asterisk-users] Allowing peers from specific subnet only

[bilal ghayyad]

Hi;

How I can make my configuration to allow the sip phones only from specific IP addresses range (for example from 192.168.10.1 - 192.168.10.50) to be allowed to connect for asterisk?

In other words, in addition to be authenticated based on the username and password, it is required that the IP address of the Phone to be from this range. How?

Regards
Bilal