If someone else is calling you, they should dial the UK mobile number exactly the same way they do when you are at home in the UK. The mobile network will automatically re-route the call, and any costs for the international part of the call will be borne by you, the mobile user.
If you are calling out, the most reliable way is to enter the number in full international format, starting with the country code, whether it's a UK, US, or other-country number. The country code for the UK is +44; the US is +1. Be sure to include the plus symbol when entering numbers in international format.
You may also be able to dial US numbers with just the area code and number while you are roaming in the US, but if that method fails, use the full international format as described above.
(The plus sign means "insert your international access prefix here." From a GSM mobile phone, you can enter the number in full international format, starting with the plus sign. The most common prefix is 00, but North America (USA, Canada, etc.) uses 011, Japan uses 010, Australia uses 0011, and many other countries use different prefixes.)
Two UK mobile phone networks (T-Mobile and Orange) use a standard known as GSM1800. This uses a frequency of about 1800MHz.Two UK mobile phone networks (O2 and Vodafone) use a standard known as GSM900. This uses a frequency of about 900MHz.
As of December 2008, there were 75,750,000 mobile phones in use in the UK.
NO!
no
The LG Voyager mobile phone is not available in the UK. LG Voyager mobile is a CDMA phone, which does not work outside the US.
You will need an adaptor
To dial any number in the US (landline or mobile) from the UK, dial 00 1 followed by the area code and number.
Just dial the UK mobile number as normal. The network will sort out the logistics.
You can't.
about 23 million
can you use mobile in usa from other countries
3 Mobile does not exist in the United States. They are primarily offered in Australia and the UK.