Inter-Tel Axxess Phone 5504400 "light called trunk outside" Questions

trunk groups and/or feature codes An Executive or Standard digital display endpoint can be equipped with up to four DSS/BLF units, increasing your capacity to as many as 240 programmable buttons. LED

light blinks when we get calls, however, it doesn't leave any indication of missing any calls or even voice mail. Just a missed call would suffice to notify the FD of a possible voicemail. Please help

light comes on. This happens approx. 20 seconds after the phone has been hung up. Any suggestions? I had this exact same problem. First to thing to check is that all other equipment is functioning; it