Receiver 가 MSRP 메시지를 받음MSRP 8UH1zZt9n7ei SEND^MTo-Path: msrps://172.30.0.190:9/tKSB125985000004;tcp^MFrom-Path: msrps://sbc.example.com:1234/wibD3206000022;tcp^MMessage-ID: yZCoXV2Qz15jtKWC3KOP7OMCVu8NJpC3^MSuccess-Report: no^MFailure-Report: yes^MByte-Range: 1-345/345^MContent-Type: message/cpim^M^MFrom: ^MTo: ^MNS: imdn ^Mimdn.Message-ID: TdemiCVxBjH8a2hsxGPOeC9W192h0q7R^MDateTime: 2018-05-15T..