CPI
Comparable Performance Indicators – The ability to compare the Call Completion
Success Rate and Voice Quality between O2, Orange, T-Mobile and Vodafone.
VQ
Voice Quality – All calls on the GSM Networks are of digital Quality and the
TopNetUK site gives customers an opportunity to compare the call audio quality
between each Mobile Network Operator.
GSM
Global System for Mobile Communications – GSM is the most popular standard for
mobile phones in the world. The GSM service is used by over 2 billion people
across more than 210 countries and territories.
2G
2nd Generation digital mobile network, also known as GSM (replaced the original
TACS (1G) network).
3G
3rd Generation high speed mobile network. UMTS - Universal Mobile
Telecommunications System - The latest generation of mobile phone technology
allowing customers to make video calls and browse the web. It does for mobiles
what broadband did for the internet.
Mobile Network Operator
The four UK mobile network operators are O2, Orange, T-Mobile and Vodafone.
Ofcom
Ofcom is the independent regulator and competition authority for the UK
communications industries, with responsibilities across television, radio,
telecommunications and wireless communications services.