Attributions
The files and metadata on this page have been mirrored with permission from The Telecom Archive.
Attributions
The files and metadata on this page have been mirrored with permission from The Telecom Archive.
Bell System Practices | |
|---|---|
| Division | 473 |
| Description | Intra-PBX Protection of Service, Code Calling, Customer Training, Dispatching, Emergency Reporting, Interface Trunks, Message Waiting, Recorded Telephone Dictation, Telephone Answering Systems, and Transmitter Transfer Customer Equipment |
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