Out-of-band call verification

A non-transitory computer readable storage medium storing executable computer program instructions for verifying that a network communication is legitimate, the computer program instructions comprising instructions that when executed cause a computer processor to:

• receive a verification request message from a calling party via a data network, the verification request message associated with a scheduled future communication to be placed from the calling party to a called device via a telephone network;
• generate, responsive to receipt of the verification request message, a verification message indicating that the associated communication is verified as being from the calling party;
• receive a request for the verification message from the called device via the data network;
• identify the called device from which the request was received;
• identify a set of verification messages associated with the identified called device, the set of verification messages comprising a set of verification messages including the generated verification message;
• and
• send the identified set of verification messages to the called device via the data network in response to the received request.

A computer system for verifying that a network communication is legitimate, the system comprising:

• receiving a verification request message from a calling party via a data network, the verification request message associated with a scheduled future communication to be placed from the calling party to a called device via a telephone network;
• generating, responsive to receipt of the verification request message, a verification message indicating that the associated communication is verified as being from the calling party;
• receiving a request for the verification message from the called device via the data network;
• identifying the called device from which the request was received;
• identifying a set of verification messages associated with the identified called device, the set of verification messages comprising a plurality of verification messages including the generated verification message;
• and
• sending the identified set of verification messages to the called device via the data network in response to the received request.