I just realized that if i dial “800” from my phone it acts as a sort of intercom where all connected phones auto-answer on speaker phone.
I can’t find this feature in the Feature Codes module nor have I been able to find reference to it in the config files under /etc/asterisk/ aside from:
chan_dahdi.conf.template:echotraining=800
Which doesn’t look like what I’m looking for.
Can anyone tell me how to disable it?
I should add that I’m running the FreePBX distro, FreePBX 2.10.1.2.
EDIT: Turns out this is not related to FreePBX at all, but rather the handsets use multicast to ring eachother directly due to a paging group default configuration.