Keep your number when you change providers, use your mobile abroad and learn about mobile subscription services.
You may also be interested in:
Learn about 4G coverage for voice calls. Otherwise known as VoLTE.
The location system for 111 calls made from mobiles
Alert notifications sent to mobile phones in emergency situations.
What you need to know about mobile roaming overseas
Learn about responsible mobile messaging services.
Keep your mobile phone number when changing service providers.