Optimal roaming overview

Mobile operators select and prioritise roaming partners based on criteria such as IOT agreements, group operator alliances, QoS, coverage and traffic volume. Therefore, it is in an operators' best interest to ensure that their outbound roaming subscribers select a preferred network in each country visited.

By listening to the signal between the foreign and home network Polystar's Optimal outbound roaming solution makes sure that your roamers are connected to the right foreign network. The solution works for all countries and all networks, worldwide, and in no way interferes with actual network signalling.

An update of the preferred list of roaming networks is immediately and automatically refreshed for all outbound roamers – no user action is required. The solution also eliminates the need to update millions of SIM cards with new preferred lists.