I am a new administrator and have 32 years of digital electronics experience. Question: for the message waiting lamps i have not found in the manuals if the 192 expects the ext# following the code or preceeds the code. We have a VSR Voicentre voicemail system connected to the EE192. MW lamps do not always clear after recieving messages and deleting. The voicemail system is sending the code a pause then the extension. Any idea's would be appreciated.