System Functions and Features as of I7.9
5
sy
d-
020
0/3.
0
– I7.
9
– 1
1
.2009
Response if the call destination is busy . . . . . . . . . . . . . . . . . . . . . . . . . 152
Release Destination if Incoming Dialling is Incomplete . . . . . . . . . . 156
Routing if the Call Destination is busy. . . . . . . . . . . . . . . . . . . . . . . . . . . 159
Release Destination if Dialling is Incomplete . . . . . . . . . . . . . . . . . . . . 160
Call to the public Network via a Key Telephone . . . . . . . . . . . . . . . . . 172
Call to the public Network via an Operator Console . . . . . . . . . . . . . 173
Call to a virtual Network PISN User. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 173
Exchange access authorization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 175
Call to the private Leased-Line Network . . . . . . . . . . . . . . . . . . . . . . . . 177
Call to a DSS1 Terminal equipment on the S Bus (DDO). . . . . . . . . . 179
Direct or indirect Selection of the Network Provider . . . . . . . . . . . . . 181
Allocating the Internal Routing Table (LCR Table) . . . . . . . . . . . . . . . 185
Selecting the Network Provider (Routing Tables) . . . . . . . . . . . . . . . . 188
Alternative Routing (Fallback Routing). . . . . . . . . . . . . . . . . . . . . . . . . . 189
Restricted scope of performance by a Network Provider. . . . . . . . . 190
Conversion and Routing (Network Provider Table) . . . . . . . . . . . . . . 191
Bypassing LCR manually (Forced Routing) . . . . . . . . . . . . . . . . . . . . . . 194
LCR in the private Leased-line Network . . . . . . . . . . . . . . . . . . . . . . . . . 195
Call logging and Data Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 196
Exchange-to-Exchange Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Exchange-to-Exchange Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . 199
Setting up Exchange-to-Exchange Connections. . . . . . . . . . . . . . . . . 200
Clearing down Exchange-to-Exchange Connections . . . . . . . . . . . . 201
Possible Exchange-to-Exchange Connections . . . . . . . . . . . . . . . . . . . 203