1. Digital switching systems
Author: / Syed Riffat Ali
Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)
Subject: Telephone switching systems, Electronic -- Reliability,Digital telephone systems -- Reliability,System analysis
Classification :
TK
6397
.
A483
1998
2. Digital switching systems: system reliability and analysis
Author: Ali, Riffat
Library: Central Library and Information Center of Ferdowsi University of Mashhad (Khorasan Razavi)
Subject: Reliability ، Telephone switching systems, Electronic,Reliability ، Digital telephone systems,، System analysis
Classification :
TK
6397
.
A483
2002
3. spc digital telephone exchange
Author: / a.r valdar
Library: Library of Campus2 Colleges of Engineering of Tehran University (Tehran)
Subject: Digital telephone system,Telephone switching systems,electronic
Classification :
TK
5103
.
7
.
R43
1990
