??? In the last period, 802.1x attracted a lot of attention because the rumors say 3G will be replaced by VoIP PDA in the metropolitan network. Tell 110 with IP phones, have you thought about it? If not, then 3G is not like it is still abandoned.
???? Directly explain it to you to hear it, first look at an interesting story. You will have some concept.
For the traditional voice communication service, the disaster of the P2P impact on the audio and video publishing industry may immediately go to their head. You are not looking for a movie with emule or bt. The MP3 is to be several kazza. Is this company that gives you Kazza, in addition to giving you an exchanging MP3, give you Skype let you chat with the voice. QQ didn't have it early, you may not be fresh, but is QQ has a PocketPC version? QQ has IP gateway to make you call the city? You easily receive a personal version of the mobile IP phone with PocketPC's Skype to Wi-Fi.
?
More cattle or use the metropolitan network, 802.16, but Intel launched the WiMAX launched by the end of this year, a single base station can cover the unlimited broadband access from the range of 60 km to play Skype's fantasy. Of course, it is not impossible to do this on a PDA, but no one can guarantee that its signal is at least as poor in small Bank. But the biggest problem is how you make your PDA roam between WiMAX and Wi-Fi. Because not all places have a WiMAX signal that can be used directly, and in the two-year INTEL planning, there is no chip that can be accessed for mobile devices. So your mobile phone fee can at least let you understand: Roaming between the base station is not easy to analyze the URL as DNS. In addition, it is not possible to make a mobile phone on the plane is not because it will interfere with the aircraft communication, but the speed of the aircraft is too fast, which will make the honeycomb mobile phone exchange network to withstand great load, just like you feel like using BT. I expressed a conspiracy for telecommunications and civil aviation.
?
But this is not impossible, but we need more efficient P2P to support, or create a dedicated DNS. The former is what I am fever now, the latter is M $ just added to Wince5: SIP API. SIP, you imagine DNS to send DNS with email, then actually you have realized that the SIP is large, but the SIP is a system, the underlying architecture of the 3G system is based on SIP of. Some funny, is it. If someone is used (it will be a lot of people, I estimate) will use Wince 5's SIP API to develop all Internet-based mobile personal communication systems.
?
??? My dream is to use JXTA to implement SIP, with MIDP, but there is no investment, or it is better than a day.
?
