In this example, the first device 802 may scan 808 a code using a camera of the first device 802. The code may be a customized code for the user of the first device 802. For example, the code may be printed on a mailer that is send to the user of the first device 802 by the user of the second device 806. The code may be associated with information of the user, such as a name of the user, a mailing address of the user, demographic information of the user, spending habits of the user, social media information of the user, or other information of the user. The code may also include an identifier associated with the code and information regarding the second device 806, such as a device ID, a device address, or both.
When the code is scanned by the first device 802, the first device transmits a request 810 to the server 804. The request may be a request to initiate a RTCS with the second device 806 and include the identifier associated with the code, the information associated with the user of the first device 802, the device ID of the second device 806, the device address of the second device 806, or a combination thereof. The server 804 forwards the request 810 to the second device. Upon acceptance of the request 810, the second device transmits a response 812 to the server 804. The response 812 may indicate that the second device 806 has accepted the request to initiate a RTCS with the first device 802.