A year ago, I gave Voice over IP a try - and gave up on it. Not because it didn't work, but because it was not reliable enough. In 90% of all cases it was working fine, but the remining 10% had bad quality, a missing voice channel, etc. That was unacceptable quality.
My wife runs a Coffee House with free Internet Access. Until now, we just had a compleatly open Wifi Router. This was great for the customers, but she worried about her liability. So I had the task to create a solution with the following requirements:
Users must acknowledge terms and conditions
Easy to use
Collection of information (MAC address, email, etc.), although this was an optonal requirement.
So I got a phone from work, a Nokia 6021. I specifically asked for one with Bluetooth, which I got. But it doesn't play nice with my Tungsten T. I can couple the devices, but I can't dial from my Tungsten (the operation just times out).
Isn't there supposed to be universal compatibility with stuff like that? I am quite annoyed. I sent a message to Vodafone and Nokia. If they don't solve this problem, I'll just return the phone and get a cheap 6310i from eBay - that phone works flawlessly with my Tungsten.