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the wireless carriers here in switzerland also don't provide you with a public IP - at least depending on your location. I think this has more technical reasons
by pilif 16y ago
the wireless carriers here in switzerland also don't provide you with a public IP - at least depending on your location. I think this has more technical reasons than anything else.
The three carriers we can chose from are strangely (and probably illegally - the state is looking into this) similar to each other, but all of them don't make any effort in traffic shaping or controlling.
OTOH, they are pretty expensive for what they provide. When AT&T in the US added that 2 GB cap, I was sighing and looking at my 250MB cap.
Sure, other carriers have better deals (better as in "cheaper bandwidth" but worse coverage), but you basically can't get more then 1GB for a reasonable price.
Aside of that though, they don't care how you use the service they provide.
Not having a public IP I can live with. Paying so much for data is annoying, but if that's the way for them to provide me with unfiltered and unconstrained net access, then I'm fine with that.
Hell, the word "tethering" wasn't even a word here before the iPhone came around - hooking up your notebook to your phone has always been possible (and encouraged - see prices and caps).
- loup-vaillant 16y ago> Not having a public IP I can live with You do realize that it forbids your phone (or the computer you tether) to be a server, right? That means you can't receive calls over IP without the need for a third party, for instance. So I'd say they do care about how you use their service. They wouldn't want to give you the means of destroying their busyness model, now do they?
- pilif 16y agoI am perfectly well able to receive SIP calls over that private IP. Sure. You do need STUN, but honestly, I have a feeling that it's ever so much easier to do correct roaming between cell towers with those internal IPs which is likely the reason for this configuration.
- loup-vaillant 16y agoI don't know how roaming is supposed to work, but I'd be very surprised if your feeling was grounded. Here's why: (1) You keep the same phone number, wherever you are. (2) Calls don' end even when you move. Which means they can keep track of state, and link that state to your phone. Id' be very surprised if the same kind of mechanism couldn't be use on IP technology. My bet is, they do: have you ever noticed having to constantly reconnect when you drive in a well covered area? If not, that most probably mean that they keep track of the NAT table associated to your phone, and of course your private IP. In that case, I can't fathom why they couldn't do the same with a pubic IP.