Roaming is the act of a mobile subscriber using voice, data and other services outside of their home network, typically using a partner network. Roaming is technically supported by mobility management, authentication and billing procedures. Establishing roaming between network operators is based on - and the commercial terms contained in - Roaming Agreements.
GSM Roaming, which involves roaming between GSM networks, offers the convenience of a single number, a single bill and a single phone with worldwide access to over 219 countries. If the visited network is in the same country as the home network, this is known as National Roaming. If the visited network is outside the home country, this is known as International Roaming. If the visited network operates on a different technical standard than the home network, this is known as Inter-standard roaming. |
