3.4 Mobile Interconnection

The principles underpinning interconnection are broadly the same for mobile networks as for fixed networks. However, there are some important technical, commercial, and regulatory differences between mobile and fixed networks that affect interconnection arrangements. This section covers:

• Key forms of mobile interconnection,
• Issues in setting mobile termination rates, and retentions for fixed-to-mobile calls,
• Additional considerations in modelling mobile network costs,
• Mobile roaming, and
• The role of mobile networks in achieving social goals, and implications for regulators.