Volume 4 of Telephone Receiver off hook tone at 400 Hz. for some TDS Tel...

Volume 3 of Receiver off hook tone at 440 Hz. for some TDS Telecome Offi...

Volume 1 of Telephone receiver off hook tone for some TDS Telecom office...

Volume 4 of receiver off hook tone at 400 Hz. for Concord Telephone Exch...

Vilume 2 of Receiver off hook tone at 440 Hz for Concord Telephone Excha...

Volume 1 of Receiver off hook tone at 480 Hz for Comcord Telephone Excha...

Receiver off hook tone for Bell Phone Companies and AT&T Phone Companies

Telephone Receiver off hook tone at 400 Hz for some TDS Telecom offices

Volume 3 of Telephone Receiver off hook tone 440 Hz. for some TDS Teleco...

Volume 2 of Telephone Receiver off hook at 480 Hz. tone for some TDS Tel...

Volume 1 of Telephone Receiver off hook tone for some or all TDS Teleco...

Volume 4 of Telephone ROH tone at 400 for all PABX systems?

Volume 3 of Phone off hook tone at 440 Hz. for some PABX systems?

Volume 2 of ROH tone at 480 Hz. for some Telephone PABX systems?

Volume 1 of Telephone common beeping sound for the ROH tone but for some...

Volume 5 of Telephone ROH tone for some PABX systems and some ROLM syst...

Volume 6 of Telephone off hook tone in Australia but for all PABX system...

Volume 2 of Telephone Receiver off hook tone at 480 Hz. for all ROLM CBX...

Volume 3 of Telephone Receiver off hook tone at 440 Hz. for all ROLM CBX...

Telephone Receiver off hook tone at 400 Hz for all ROLM CBX or all ROLM...

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