| I wouldn't be in such a rush to go VoIP to the desktop right away, if only because of the cost.
The Mitel 3300 will interface with their legacy SX-2000 TDM cards, cabinets, and phones. There is a whole lot of them out there, and they've been around for a long time. That means you can get replacements from several reliable refurb sources, if not from your Mitel vendor.
I would roll out a new system like this:
1. Get the IP-capable switch and do your trunking/networking via IP
2. Next, VoIP Phones to Teleworkers, if you have any... This can be your test-bed.
3. Once tested and proven, give them to senior staff (You know how they love them some nifty toys...)
4. Take it from there as your needs and budget dictate.
I'm biased, OK, I used to work for Mitel and it's a great company with a great product. I believe they will emerge as the number one in VoIP for the major enterprise market. Other manufacturer's recent security woes, lack of features/flexibility, etc. are things to keep an eye on. Check out Mitel's hardware warrantee and "future-proofing" plans, too.
jsaxe |