Configuring Asterisk to use Cisco Unified CP-7841, CP-8841, CP-9971, CP-8961 IP Phones
Although not officially supported, Cisco CP 8961 and 9971 phones can be easily configured for use on FreePBX, Elastix […]
Configuring and Securing a Trixbox or FreePBX on a Sonicwall Router w/o NAT
Using the Asterisk behind a NAT firewall is not recommended. If you have done this, you know about the headaches […]