Was this the step by step tones after finishing a call for Parson Greene Telephone Exchange Inc. in Parson TN

Was this the step by step tones after finishing a call for Parson Greene Telephone Exchange Inc. in Parson TN? They has ATT/Philps Tel 5ESS-PBX Host switches but did they have this step by step tones? I still wanna know what kind of off hook tone this is and what the technical name for this off hook tone is. Please let me know. Thank you.