Table Of Contents - AT&T DEFINITY 2500 series Network Manual

iv
CONTENTS
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MULTIPLEXING OUTSIDE THE SWITCH
Multiplexing onto T1 Trunks
Compressing the Signal
Altering Channel Assignments on T1 Trunks
Getting the Signal Ready for the Central Office
Changing the Transmission Medium from Metallic to Fiber-Optic
Multiplexing with Microwave
Demultiplexing
STATISTICAL MULTIPLEXING
TRUNKING
APPLICATION
Local Exchange Trunks
Tie Trunks
Special-Access Trunks
Auxiliary Trunks
Miscellaneous Trunks
CONNECTIVITY
ADMINISTRATION OPTIONS
System 85/G2 Administration
System 75/G1 Administration
DS1 Options
INTERFACE CIRCUIT
TRUNK TABLES
2 2. . C CO OM MM MU UN NI IC CA AT TI IO ON N S SY YS ST TE EM M N NE ET TW WO OR RK KI IN NG G - - A AN N O OV VE ER RV VI IE EW W
TYPES OF NETWORKS
NETWORK EVOLUTION
SOFTWARE CAPABILITIES
Basic Networking Software
Main-Satellite/Tributary Software - The UDP and Multipremises Packages
Electronic Tandem Network Software - The PNA and ETN (Standard Network) Packages
Distributed Communications System
NETWORK CALL PROCESSING
1-29
1-29
1-31
1-31
1-31
1-32
1-32
1-32
1-34
1-35
1-35
1-35
1-36
1-37
1-37
1-37
1-38
1-39
1-39
1-41
1-41
1-42
1-42
2 2- -1 1
2-2
2-3
2-4
2-4
2-5
2-6
2-7
2-7