Recovery of established emergency calls

An apparatus for re-establishing a messaging session comprising:

• a processor unit for executing instructions;
• and
• a memory for storing instructions, which when executed by the processor unit configure the apparatus to:
• receiving a Session Initiation Protocol (SIP) messaging session establishment request at an emergency call answer node, the messaging session establishment request having an indication of a previously established messaging session between an operator workstation and a sending device to re-establish;
• checking a recovery queue at the emergency call answer node for a previously received session establishment request having a matching indication for the previously established messaging session to re-establish;
• and
• bridging at the emergency call answer node a session leg for the received messaging session establishment request and a session leg for the previously received session establishment request having the matching indication for the previously established messaging session to re-establish the messaging session when a match is found.

A non-transitory computer readable memory containing instructions for execution by a processor, the instructions for performing a method of re-establishing a messaging session comprising:

• receiving a Session Initiation Protocol (SIP) session establishment request at an emergency call answer node, the session establishment request having an indication of a previously established messaging session between an operator workstation and a sending device to be re-establish;
• checking a recovery queue at the emergency call answer node for a previously received messaging session establishment request having a matching indication for the previously established messaging session to re-establish;
• and
• bridging at the emergency call answer node a session leg for the received session establishment request and a session leg for the previously received session establishment request having the matching indication for the previously established messaging session to re-establish the messaging session when a match is found.