BS-6789-6.1 | Apparatus with one or more particular functions for connection to certain public switched telephone networks. Specification for series connected apparatus | Document Center, Inc.

BS-6789-6.1 › Complete Document History
Apparatus with one or more particular functions for connection to certain public switched telephone networks. Specification for series connected apparatus

Obsolete Revision Information:

1986 EDITION - WITHDRAWN, 9/27/2012 - Dec. 31, 1986