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Test Scenarios for Mission Critical Push-To-Talk (MCPTT) Off-Network Mode Protocols Implementation



Priam C. Varin, Yishen Sun, Wesley Garey


The document provides both an overview and technical details of test scenarios that are designed by our group. Those test scenarios can be used to verify the protocol implementation of the off- network mode of 3GPP defined mission critical push-to-talk (MCPTT) operations, covering floor control, call control, and call type control. This release contains test cases for basic group calls, private calls and broadcast group calls. A test scenario is presented in a table format, and sometimes a figure for the messages exchanged over the air as well.
NIST Interagency/Internal Report (NISTIR) - 8236
Report Number


MCPTT, off-network, basic group call, broadcast group call, private call, call control, floor control, test cases


Varin, P. , Sun, Y. and Garey, W. (2018), Test Scenarios for Mission Critical Push-To-Talk (MCPTT) Off-Network Mode Protocols Implementation, NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed June 13, 2024)


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Created October 30, 2018, Updated October 12, 2021