Introduction to telephones and telephone systems/

समान संसाधन

• Introduction to telephone switching
  द्वारा: 355070 Briley, Bruce E.
• Improvements in telephone signalling /
  द्वारा: 272820 Welch, S.
  प्रकाशित: (1949)
• The British telephone system : system effectiveness /
  द्वारा: Open University. Systems Behaviour Course Team, और अन्य
  प्रकाशित: (1973)
• The telephone and the exchange /
  द्वारा: 462982 Povey, P J
  प्रकाशित: (1979)
• Electronic Telephone Projects /
  द्वारा: Caristi, Anthony J., author 364284
  प्रकाशित: (1986)