What are the best cell phone providers in London?

Is there any economical way to switch cell phone providers without waiting months for my contract to expire? I've had a cell phone with Verizon for about three years now. I'm not a huge fan of them, but renewed my contract a year and a half ago so that...

What are my options for one week of cell phone in London? I have an AT&T GSM phone in Boston where I live, spending a week in London for vacation. What are my options for cell phone access the week I'm in London? I'm mostly interested in keeping...

My dad wants to switch providers but doesnt want to give up his cell phone

This question is pretty open-ended. Pretty much any data on cell phone usage and mobile providers would be appreciated. Preferably short data facts or statistics, but I'm open to anything...

I have a telus cell phone. What other cell providers will it work for? I have seen some listed as working for multiple providers. Thank you.

I'm going to London from November 1st to November 7th and I want to be able to make and receive a few phone calls... but texting/data is not necessary. I live in New York and have an incompatible Android phone. Verizon is my provider. I can also Skype...

If I bought a US made cell phone and sold it to someone living in Taiwan, will the cell phone work on their service providers? Will they need to purchase a SIM card from Taiwan to make it work?

ok, I have a motorola cell phone V300 thru tmobile. it has a sim card. I ALSO have Motorola Mobile phone tools software and the PC usb csble to hook my cell up to the PC. we are switching MOST LIKELY to a service using sim cards. but not sure. how can...

My company offers a subscription based service (not cell phones) in which customer churn is a factor. I'd like to use cell phone providers as a model for us. Particularly, I'm interested in: Churn programs - what examples can be found describing programs...