Was this the step by step tones for Halls Telephone Exchange Inc

Was this the step by step tones for Hals Telephone Exchange Inc. in Halls Crossroads TN? They had 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 was and what the technical name for this off hook tone is. Please let me know. Thank you.