Peer to peer connection

A computer program product for setting up a peer-to-peer IP connection between a first communication device and a second communication device, where the first communication device is associated with a first Subscriber Identity Module (SIM) and the second communication device is associated with a second SIM, the computer program product comprising computer program code that, when executed by a processor included in the first communication device, causes the processor to:

• send, to the second communication device, using a messaging service that is available to the first communication device based on the first communication device being associated with the first SIM, a request for setting up the peer-to-peer IP connection between the first communication device and the second communication device,
• the request being directed to a particular port of the second communication device,
• the particular port being associated with an application,
• the request causing the application to automatically start in the second communication device based on the second communication device receiving the request via the particular port,
• the application not running in the second communication device before the second communication device receives the request, and
• the application including an Internet browser application;
• receive an IP address of the second communication device and an identifier identifying the first communication device in a message from the second communication device,
• the message being sent by the second communication device based on the request being directed to the particular port;
• process, by the first communication device, the identifier to form a signature associated with the first communication device,
• the signature being different from the identifier;
• and
• send, by the first communication device, the signature to the IP address of the second communication device to set up the peer-to-peer IP connection between the first communication device and the second communication device,
• the second communication device authenticating the first communication device based on the signature, and
• the peer-to-peer IP connection between the first communication device and the second communication device being set up based on the second communication device authenticating the first communication device based on the signature.

A method in a second device for setting up a peer-to-peer IP connection between a first device and the second device, where the first device is associated with a first Subscriber Identity Module (SIM) and the second device is associated with a second SIM, the method comprising:

• receiving, by the second device and from the first device, using a messaging service that is available to the second device based on the second device being associated with the second SIM, a request for setting up the peer-to-peer IP connection between the first device and the second device,
• the request being received at a particular port of the second device;
• determining, by the second device and based on receiving the message at the particular port, that the request is associated with an application;
• automatically starting, by the second device, the application in the second device based on the request being associated with the application;
• sending, by the second device, a message to the first device,
• the message to the first device including an identifier identifying the first device and an IP address of the second device;
• storing, by the second device, information indicating how the identifier will be processed by the first device;
• receiving, by the second device and from the first device, a signature and an IP address of the first device,
• the first device processing the identifier to generate the signature, and
• the first device sending the signature and the IP address of the first device to the IP address of the second device;
• authenticating, by the second device, the first device based on the signature and the stored information;
• and
• setting up, by the second device, the peer-to-peer IP connection between the first device and the second device based on the IP address of the first device,
• the second device setting up the peer-to-peer IP connection between the first device and the second device by connecting to the first device using the IP address of the first device.

A computer program product for setting up a peer-to-peer IP connection between a first communication device and a second communication device, where the first communication device is associated with a first Subscriber Identity Module (SIM) and the second communication device is associated with a second SIM, the computer program product comprising computer program code that, when executed by a processor included in the second communication device, cause the processor to:

• receive, from the first communication device, using a messaging service that is available to the second communication device based on the second communication device being associated with the second SIM, a request for setting up the peer-to-peer IP connection between the first communication device and the second communication device,
• the request being received at a particular port of the second communication device;
• determine, based on receiving the message at the particular port, that the request is associated with an application;
• automatically start the application in the second communication device based on the request being associated with the application;
• send an identifier identifying the first communication device and an IP address of the second communication device in a message to the first communication device;
• store information indicating how the identifier will be processed by the first communication device;
• receive, from the first communication device, a signature and an IP address of the first communication device,
• the first communication device processing the identifier to generate the signature, and
• the first communication device sending the signature and the IP address of the first communication device to the IP address of the second communication device;
• authenticate the first communication device based on the signature and the stored information;
• and
• set up the peer-to-peer IP connection between the first communication device and the second communication device based on the IP address of the first communication device,
• the second communication device setting up the peer-to-peer IP connection between the first communication device and the second communication device by connecting to the first communication device using the IP address of the first communication device.

A first device, comprising:

• a first Subscriber Identity Module (SIM);
• a message communication unit to:
• send, using a messaging service that is available to the first device based on the first device being associated with the first SIM, a message to a second device that is associated with a second SIM,
• the message including a request for setting up a peer-to-peer IP connection between the first device and the second device,
• the request being directed to a particular port of the second device,
• the particular port being associated with an application,
• the request causing the application to automatically start in the second device based on the second device receiving the request via the particular port,
• receive an identifier associated with the first device and an IP address of the second device in a message from the second device,
• the message being sent by the second device based on the request being directed to the particular port,
• process the identifier to form a signature associated with the first device,
• the signature being different from the identifier;
• and
• an IP communication unit to:
• send the signature to the IP address of the second device to set up the peer-to-peer IP connection between the first device and the second device,
• the second device authenticating the first device based on the signature, and
• the peer-to-peer IP connection between the first device and the second device being set up based on the second device authenticating the first device.

A first device, comprising:

• a first Subscriber Identity Module (SIM);
• a message communication unit to:
• receive, in a message from a second device that is associated with a second SIM, a request for setting up a peer-to-peer IP connection between the first device and the second device,
• the request being received at a particular port of the first device;
• determine, based on receiving the request at the particular port, that the request is associated with an application,
• automatically start the application in the first device based on receiving the request being associated with the application, and
• send a message to the second device,
• the message to the second device including an identifier identifying the second device and an IP address of the first device,
• store information indicating how the identifier will be processed by the second device,
• receive, from the second device, a signature and an IP address of the second device,
• the second device processing the identifier to generate the signature, and
• the second device sending the signature and the IP address of the second device to the IP address of the first device, and
• authenticate the second device based on the signature and the stored information;
• and
• an IP communication unit to:
• set up the peer-to-peer IP connection between the first device and the second device using the IP address of the second device.