ascom
Ascotel 2025/2045/2065
HBT_20321104_02/B0_en
Call Routing
2.175
Setting up Exchange-to-Exchange Connections
An exchange-to-exchange connection can be set up using call diversion, confer-
ence, call forwarding and transfer with or without prior notice.
T
Transfer
C
Conference
CD
Call diversion
CF
Call forwarding
Fig. 2.85:
Exchange-to-exchange traffic
Clearing down Exchange-to-Exchange Connections
The public network sends the PBX a release signal once the external call partners
of an exchange-to-exchange connection have finished the call. The connection is
then cleared down by the PBX.
Without a release signal, the PBX cannot clear down an exchange-to-exchange
connection.
The amount of time between completion of the call and the sending of the release
signal depends on whether the exchange-to-exchange connection is set up end-
to-end within the ISDN network (end-to-end ISDN connection) or whether sec-
tions of it are analogue (non-end-to-end ISDN connection).
At transitions to other networks (for example from leased-line-network to cellular
network) it is possible, due to the lack of correct signalling, that an end-to-end
ISDN connection is signalled as a non-end-to-end connection.
End-to-End ISDN Connection
The release signal is sent as soon as the call is completed.
624 22 02
647 22 16
624 45 67
A
B
C
202
624 22 02
624 2x xx
T / T2
T, C
CF
CD
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Содержание Ascotel 2025
Страница 1: ...Ascotel ISDN telecommunications system from ascom Ascotel 2025 2045 2065 System Manual...
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Страница 109: ...ascom Ascotel 2025 2045 2065 1 54 Networking the Systems HBT_20321104_01 B0_en...
Страница 167: ...ascom Ascotel 2025 2045 2065 1 112 Ascotel Information Management System AIMS HBT_20321104_01 B0_en...
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Страница 177: ...ascom Ascotel 2025 2045 2065 2 X HBT_20321104_02 B0_en...
Страница 291: ...ascom Ascotel 2025 2045 2065 2 114 Routing Elements HBT_20321104_02 B0_en...
Страница 397: ...ascom Ascotel 2025 2045 2065 2 220 Data Services HBT_20321104_02 B0_en...
Страница 627: ...ascom Ascotel 2025 2045 2065 3 II HBT_20321104_03 B0_en...
Страница 653: ...ascom Ascotel 2025 2045 2065 3 22 System and Expansion Limits HBT_20321104_03 B0_en...
Страница 717: ...ascom Ascotel 2025 2045 2065 3 86 Planning DECT Systems HBT_20321104_03 B0_en...
Страница 765: ...ascom Ascotel 2025 2045 2065 3 134 Planning a Private Network HBT_20321104_03 B0_en...
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Страница 771: ...ascom Ascotel 2025 2045 2065 4 VI HBT_20321104_04 B0_en...
Страница 805: ...ascom Ascotel 2025 2045 2065 4 34 Connecting the PBX HBT_20321104_04 B0_en...
Страница 875: ...ascom Ascotel 2025 2045 2065 4 104 Cabling Interfaces HBT_20321104_04 B0_en...
Страница 897: ...ascom Ascotel 2025 2045 2065 5 II HBT_20321104_05 B0_en...
Страница 929: ...ascom Ascotel 2025 2045 2065 5 30 Configuration Steps HBT_20321104_05 B0_en...
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Страница 973: ...ascom Ascotel 2025 2045 2065 6 IV HBT_20321104_06 B0_en 4 Customer Induction 6 19 5 Handover to the Customer 6 20...
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Страница 1019: ...ascom Ascotel 2025 2045 2065 7 20 Data Maintenance HBT_20321104_07 B0_en...
Страница 1085: ...ascom Ascotel 2025 2045 2065 7 86 Operations Supervision HBT_20321104_07 B0_en...
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Страница 1095: ...ascom Ascotel 2025 2045 2065 8 6 Systematic Designation System HBT_20321104_08 B0_en...
Страница 1115: ...ascom Ascotel 2025 2045 2065 8 26 Designation Labels HBT_20321104_08 B0_en...
Страница 1117: ...ascom Ascotel 2025 2045 2065 9 II HBT_20321104_09 B0_en...
Страница 1123: ...ascom Ascotel 2025 2045 2065 9 6 Abbreviations HBT_20321104_09 B0_en...
Страница 1135: ...ascom Ascotel 2025 2045 2065 9 18 Glossary HBT_20321104_09 B0_en...