The goal of this project was to create a test method for s042.1 an ACMA standard that tests the emergency call capabilities of a mobile device. The original plan for this project was to create an active repeater which would control the connection between a mobile device and the tower by means of filtering. I met with a board member of the ACMA to present my proposal. This plan was not approved by the ACMA due to strict regulations regarding the use of active repeaters and therefore the ACMA recommended that I use a preapproved active repeater. This report outlines the industry implementation of a pre-approved device, the Cel-fi Go 2 by Nextivity. This decision was based on an analysis of the s042.1 standard requirements and an understanding of the emergency protocols used in UMTS, LTE and NR. This report outlines the differences in these technologies. The Cel-fi Go series primarily uses band pass filtering to isolate the particular band to be tested, this method is demonstrated using a MATLAB script. The capabilities of MATLAB as a possibility for use of testing with an SDR are explored and the reasons for why this software alone could not be used as a test method are explained.