Im pulling my hair out with this one.
I have BLF keys set on each extension to monitor/intercom the others as we only have 5 phones/extensions. I have added a new extension and on each of the other templates added a new key matching the others (BLF + Extension number). The rest of the phones will not show a red nor green light for the new extensions whether in use or idle. Am I missing something? All phones S705 on the same LAN. The new phone works as expected and the lights all green and working as its monitoring status of the rest of the extensions.