Extricom Wireless Solution
Reading the post I thought I'd comment.
Extricom has a unique proposition but don't be fooled. Here are ten reasons why not to buy:
1. Each AP's acts as an antennae which gives great coverage area but adding AP's does not increase bandwidth! A 24 port switch with 24 AP's all on one "blanket" at .11b settings gives 11Mb of bandwidth...not good. Share that with 24 students in 24 classrooms then the potential available b/w is into the K/bs range...rubbish
2. Dual radio AP's do not offer any antennae diversity
3. Dual or quad radio AP's have one antenna that "does all". The problem is that antennaes, to get max performance, requires different antennae's. Hence the one size fits all has an impact on distance...meaning more AP's to cover the same area which means more cost.
4. There True Reuse is a myth....ask them to show you this with several different types of laptops with different radio chipsets in. Make sure they are not all Atheros!
5. Great VoIP demo yes...but they have no QoS on the box. They will say simply but different traffic types on different blankets but what about the same traffic types on the same blanket.
6. If an AP fails then it will auto re-route...yes but what happens when you have a switch fail! There is no redundancy and therefore this is not an enterprise class sytem.
7. All cables have to re-route back to each switch...nothing can go over a layer two infrastructure.
8. Ask how many users can be assoicaied to any one switch. In order to make this system work the AP's are antennaes and the switchis the AP. Last I heard was that it could support 128 users in hardware then after that it ran like a dog in software.
9. Cost - the solution is not cheap if you need several switches in several locations.
10. Their channel is not well trained and leads to price differences between competing resellers. If you have an issue they call Extricom in directly and there are ony two engineers in the whole of the UK...STAY AWAY.
You will hear of this solution working, I argue that to get this working in a high data, mission critical environment is a real challenge. Student use in a school, then yes you can get away with it.
Check out the other wireless LAN players and stick to well known names.
Motorola - very good indoor and outdoor solution player, good price
Cisco - expensive but may fit with your current architecture
Aruba - security play is good but you pay for it
Belden/Zyxel - STAY AWAY some of it is Extricom but a different colour