Was this the step by step tones for Halss Telephone Exchsnge Inc in Halls Crossroads TN

Was this the step by step tones after finishing a call for Halls 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? Please let me know. 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.