Detailed specifications of signalling system R.2
Subtitle: with explanatory annexes and comments with regard to the use of this system for national networks : (text presented by the Swiss Administration in conformity with the decisions of the C.C.I.T.T. IVth Plenary Assembly at Mar del Plata).
Publisher: International Telecommunication Union
Published: 1969
Place of publication: [Geneva]
Language: eng
Number of pages: 118
Subjects: Telephone -- Signaling.
Other titles: Signalling system R. 2.
Notes: On spine: Signalling system R. 2.