Thanks guys, its not going to be complicated from a call flow programming wise. Its being used for all analog phones in a building in Chicago. I was just seeing if anyone has encountered this and looking for a new perspective on it. I have another question regarding the voicemail. Some background on this site. The entire building is on a Avaya CM which has a H323 line to the IP Office. Only the IPO is getting replaced (along with expansions) and has all of the the hall, elevator and emergency analog phones. The voicemail type is Remote Audix. I believe that is to the CM but I am not sure. Does anyone have any input with the older 400 IPO's and voicemail types? Has anyone encountered a type of configuration as this? I have attached the screenshot with the type of voicemail they are currently on:
Voicemail Type:Remote>Audix Voicemail
Voicemail Destination>0
Voicemail IP>255.255.255.255
Audix UDP Number>2997