Submit Report Handling In SMSIP

An apparatus, comprising:

• at least one processor;
• and
• at least one memory including computer program code for one or more programs, the at least one processor, the at least one memory, and the computer program code configured to cause the apparatus to perform at least the following:
• receiving a session initiation protocol message request comprising a submit report;
• processing the submit report to determine whether the request corresponds to a message sent by the apparatus;
• sending, when the submit report is determined not to correspond to a message sent by the apparatus, a not-acceptable-here session initiation protocol response;
• and
• sending, when the submit report is determined to correspond to the message sent by the apparatus, an ok session initiation protocol message.

A computer program embodied on a computer-readable medium, and encoding instructions for performing a method when executed in hardware, the method comprising:

• receiving, by an apparatus, a session initiation protocol message request comprising a submit report;
• processing the submit report to determine whether the request corresponds to a message sent by the apparatus;
• sending, when the submit report is determined not to correspond to a message sent by the apparatus, a not-acceptable-here session initiation protocol response;
• and
• sending, when the submit report is determined to correspond to the message sent by the apparatus, an ok session initiation protocol message.

A method comprising:

• receiving, at an apparatus, a session initiation protocol message request comprising a submit report;
• processing the submit report to determine whether the request corresponds to a message sent by the apparatus;
• sending, when the submit report is determined not to correspond to a message sent by the apparatus, a not-acceptable-here session initiation protocol response;
• and
• sending, when the submit report is determined to correspond to the message sent by the apparatus, an ok session initiation protocol message.