Thursday, May 9, 2013

Did all ATT/Philps Tel 5ESS-PBX Host switches have this step by step tones? - Video Dailymotion

Did all ATT/Philps Tel 5ESS-PBX Host switches have this step by step tones? - Video Dailymotion
   Did all Telephone ATT/Philps Tel 5ESS-PBX Host switches have this step by step switch tones? the one I know of is Concord Teleohine Exchange Inc. in Knowville Tn. and with this ROH tone. I still wanna know the Technical name for that ROH tone that is and the technical name for that ROH tone. Please let me know. Thank you.

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