Polycom 335 phones ... when I try to dial a specific extension from another phone in the office I am put on hold (with music) then it directs me to voicemail. The phone I'm trying to reach doesn't ring at all. Same thing happens if I call into the office from external phone.
Thanks to both Jan Ferguson & Brandon. I was able to find the DND setting on the phone unit itself. However, after several attempts of turning DND on/off, I'm still unable to reach the extension. Jan mentioned that it could be triggered from the portal but I'm unable to find that ... any hints on where I should be looking?