The traditional desk phone might be seen as a relic of a bygone era, as companies are now relying much more heavily on a diverse range of communications such as video calling, CRM systems and ...

SS7 tells the telephone network what number a user is calling or texting from, known as the "presentation number". This is crucial so that calls can be connected from one to another.

It is nearly 15 years since UK phone numbers were given a shake-up. Some 20,000 numbers were kept unused, except for appearances on television screens. Why are so many required, asks Chris Stokel ...

If you already have a mobile phone You will need a UK SIM card. Make sure your phone is compatible and has been unlocked. Find out how to unlock your phone. Get a UK SIM card You will need to choose ...

It is nearly 15 years since UK phone numbers were given a shake-up. Some 20,000 numbers were kept unused, except for appearances on television screens. Why are so many required, asks Chris Stokel ...