Still in the setup phase. On my 6204 I have all 4 of my fxo lines connected to our teleco. The issue we are having is that I can call out using any of the lines. Lines 2-4 can receive inbound calls as well. But, line 1 when there is an inbound call the unit never picks up, and never shows a call ringing in the Active Calls page.
We have had the telephone company come out and confirm everything is correct with the line.
Initially this incoming line would ring once, the caller ID would show UNDEFINED 0000, and then hang up. The phone company has switched us over to different blades, different racks, and still the same problem persists. We have verified that all phone company call forwarding is turned off.
So if I connect an analog phone straight to the telephone jack, everything works fine. It’s only when I connect it into the grandstream. AND, if I move the cable from fxo 0/0 to fxo 0/1, then 0/0 works, and 0/1 doesn’t so it appears to be a problem from the phone company, but we can call in/out using a standard phone.