Technically this is the wrong Web Site, it is a bit lile going to a Ford only Dealship and asking a commission based salesman why Ford is a better then a Lambo......
I alway found that depending on who you ask, will effect the outcome
Are you asking Voice guys or data guys
Is your data network Cisco or other
What is your existing telephony infrastructure
Both systems have their merits, years ago Cisco would say that IPT was cheaper and talk about costs savings - VIOP calls etc as their system had no features when compared to any TDM system so that was their selling point - telco calls are now so cheap however the Cost approach is now dead as any IPT install will always cost you more then upgrading an existing TDM to a IPT, TDM approach
What do you want to do with telephony - Dial Tone only or wish to deploy other applications- Cisco i very expensive if DT is the only thing yo want to do
Is yours firm sale based, field based- Do you need integration into mobile devices such as Blackberry, Mobile devices, Remote working etc
How many users does your company have, how many remote offices
If you have a central organization in international offices how important is Nortel, Cisco support. You would probably get Cisco in most countries as opposed to Nortel
A few years ago Nortel hooked up with MS and so since MS has the desktop, it looked that that was their way into companies since MS did not have a strong telephony presence while Nortel did but I do not think that has paid off.
Cisco has links in MS through OCS, the desktop guys like that
Cisco admin is more GUI based, Nortel is still overlays with separate programs for each area
Who are your telephony guys - Nortel ?so they will come out probably on the Nortel side
Who is going to support it - Voice, Data
Both use linux, less updates
Cisco uses many servers depending on the apps you deploy
Cisco can make use of VMware
Supplier support- Cisco potentially single Vendor support, Account Management, Nortel still separate Vendors to manage?
On a less formal note, one of the reasons I came out in favour of Cisco when I had to do a review of Nortel, Avaya, Siemens was on the future job market
Are you getting this error “Installer User Interface Mode Not Supported. The installer cannot run in this UI mode. To specify the interface mode, use the -i command-line option, followed by the UI mode identifier. The value UI mode identifiers...
The below trick might come handy when you have to add a new node to a cluster but you don't have or is unsure of the security password for the publisher. This procedure has been around for ages.
1) Login into the CLI of the Publisher.