System and method of operating a secondary mobile device

A method of operating a secondary cellular telephone by a carrier or provider of a cellular telephone network, the method comprising:

• performing a cellular registration of the secondary cellular telephone by a Cellular Network Server (CNS) of the cellular telephone network, the secondary cellular telephone subscribed to the carrier or provider of the cellular telephone network and is associated with a subscriber identification account of the primary cellular telephone having a primary cellular telephone number, wherein the primary cellular telephone is subscribed with the carrier or provider of the cellular telephone network;
• and
• connecting the secondary cellular telephone with the cellular telephone network, the secondary cellular telephone assigned a secondary telephone number, the secondary telephone number being different from the primary cellular telephone number, and wherein outgoing calls made by the secondary cellular telephone are spoofed, by the CNS, with the primary telephone number as the caller ID of the secondary cellular telephone.

A non-transitory computer readable medium comprising instructions which, when executed by a processing system of a secondary cellular telephone, perform a method of operation of the secondary cellular telephone, the method comprising:

• transmitting, to a carrier or provider of a cellular telephone network, a request for cellular registration by the secondary cellular telephone, the secondary cellular telephone subscribed to the carrier or provider of the cellular telephone network and is associated with a subscriber identification account of a primary cellular telephone having a primary cellular telephone number, wherein the primary cellular telephone is subscribed with the carrier or provider of the cellular telephone network;
• and
• connecting the secondary cellular telephone with the cellular telephone network, the secondary cellular telephone assigned a secondary telephone number, the secondary telephone number being different from the primary cellular telephone number, and wherein outgoing calls made by the secondary cellular telephone are spoofed with the primary telephone number as the caller ID of the secondary cellular telephone.

A non-transitory computer readable medium comprising instructions which, when executed by a processing system of a Cellular Network Server (CNS) of a cellular telephone network, perform a method of operating a secondary cellular telephone by a carrier or provider of the cellular telephone network, the method comprising:

• performing a cellular registration of the secondary cellular telephone by the CNS, the secondary cellular telephone subscribed to the carrier or provider of the cellular telephone network and is associated with a subscriber identification account of the primary cellular telephone having a primary cellular telephone number, wherein the primary cellular telephone is subscribed with the carrier or provider of the cellular telephone network;
• and
• connecting the secondary cellular telephone with the cellular telephone network, the secondary cellular telephone assigned a secondary telephone number, the secondary telephone number being different from the primary cellular telephone number, and wherein outgoing calls made by the secondary cellular telephone are spoofed, by the CNS, with the primary telephone number as the caller ID of the secondary cellular telephone.