It should do that by itself. Whats your phone/carrier?When the fuck are they going to standardise the freakin connection technology, my phone spends all day hunting between 2G, 3G and HSDPA, the amount of times I get it out of my pocket and it's sat in 3G mode with no bars and I have go into settings to force it into GSM and then I get a shed load of missed call alerts.
Well thats hoe they do it on landlines and you are still attached to your original provider when it comes to own network free calls, so hes at least mostly right, possibly totally correct
They're saying now it's the 3G that's messed up, but if you switch your phone to 2G you should regain access to the network.
Loada bollocks. That would only happen if you switched to a reseller (e.g. from BT to someone using BT Wholesale; and even then it would be a mistake). If you switched from say, BT to Virgin, the number ports onto a completely separate network infrastructure.
Bollaks you say, well as an ex network data manager for BT I can tell you that when someone ports from say Orange to 02 and you dial them from a landline the call gets routed to Orange because they own the original number block, Orange then bounce back that it's gone to o2, the call drops back and reroutes to 02.
Now if Oranges whole network was down, not just the towers, then the call would fail even if o2 was ok.
It's all a bit complicated and constantly updating, but a lot of the mobile carriers extensively use BT's network to transfer calls and if the call meets such an arrangement it would fail.
You may well have ported over your PUK to let the towers recognise your phone, but the routing for calls still mostly goes via the old operator, though they are working to reduce that.
It's called number portability and was fricking nightmare to understand, only the brave messed with it.
O2 are down again
http://www.bbc.co.uk/news/technology-19928507
Maybe back up by 9pm this evening, but hopefully before Monday morning!
O2 seem to have more outages than any other network. Never had service problems with Vodafone, but I ditched Vodafone as their tariffs took the piss.
Don't recall ever having a prob with vodafone