Patent ID: 8340040

Claim:
Method for providing mobile based services for hotel PBX, the hotel PBX having an external number (MainNum H ) assigned, characterized in that it comprises: providing each hotel room which provides the mobile based service with at least one mobile station ( 1 a , 1 b ′) comprising a SIM, each SIM storing a different IMSI number; assigning a VPN (VPN H ) to the hotel; assigning each IMSI number of each mobile station ( 1 a , 1 b ′) to a different MSISDN (MSISDN A , MSISDN B ) that can only be used internally in the MNO network and that cannot be dialed from other telephones; assigning each MSISDN (MSISDN A , MSISDN B ) to a different extension number (Ext A , Ext B ) that can be used as a room extension number and that corresponds to the VPN number of the VPN (VPN H ) of the hotel; for each call originated from a calling mobile station ( 1 a ) of the hotel: checking if the call is aimed to a called party belonging to the hotel VPN (VPN H ), and in that case replacing the calling party number with the extension number (Ext A ) assigned to the calling mobile station ( 1 a ); if the call is aimed to a called party not belonging to the hotel VPN (VPN H ), replacing the calling party number with the external number (MainNum H ) of the hotel PBX; for each mobile terminated call aimed to a called mobile station ( 1 b ′) of the hotel: obtaining the extension number (Ext B ) corresponding to the called mobile station ( 1 b ′) of the hotel; obtaining the MSISDN (MSISDN B ) associated to said extension number (Ext B ); redirect the call through the mobile operator network to said MSISDN (MSISDN B ) of the called mobile station ( 1 b′).