The Comfone wVoIP-Solution appears as a visitor network to the HPMN (Home Public Mobile Network), where the HPMN is Comfone’s customer, or unilateral roaming partner.

The business model principles are based on a standard GSM, unilateral Roaming Relation between Comfone and the GSM operator, as defined by the GSM Association (SIM authentication, MAP signaling and clearing by using standard TAP format).

For further details please download the service overview.