Notes from my latest setup using a Sangoma A200 card with 4 FXO modules, trixbox 2.6.2.3, Grandstream GXP-2000s for phones, and using Endpoint manager to configure them.
I need the ability for a phone to enable and disable call forwarding to a specific number with the touch of a button. This is how I was able to get it to work.
Step by step instructions for configuring a Cisco 7940G phone to work with Asterisk/Trixbox. These are very nice business class phones. If it wasn't for Cisco swapping the PoE + and -, they would be perfect, but alas, you are required to either puchase a $1,000 Cisco PoE network switch, or use a passive injector with the pairs swapped, which works just as well.
