FYI! It was not really a disaster ..Eventually we endue migrate 270 phone successfully moving from Nortel to Cisco.The main reason we ware on panicking because there is no window for making any mistake.It's like if you do mistake or if you can't do it you will be hang or life sentence in prison.
Couple of issue we had to deal with.Only reason I am writing because I want to remember this horrible night my entire life.
* Initially 270 phone to deploy time window (7pm-11pm) .We end up finish all at 6AM morning :) Smile)
* Some of information was given to us was wrong.
* We did not had enough PoE on middle of our deployment.
*this one much better there was not enough VLAN or IP address to cover all those phone.(Note: To remmber it was not easy to add VLAN or IP. There was like two week protocol to follow to get those approved..lol)
*Those project manager we had not all of they know what they are doing.Not complaining I am sure managing all those stuff is hard .Just think maybe it would've been much better if there ware proper plan and coordination with networking or other team was on the place.
*Plus it was far from my house and I did not show up next day well my excuse is I was there until 6am plus 2hour to my house.There was like so many ticket was opend and so many phone was not registering and only one guy to deal with all those and he as kinda new to all those too.Okey okey I know I know all blame on me I am talking blame for that.I know I am getting old and becoming a little too lazy.plus I am getting fat bally now this days.
Not good !! Well lesson learned.
