Aastra Ascotel IntelliGate 2025 - Page 425

Ascotel IntelliGate 2025/2045/2065
Part 2 Features 425
Fig. 2.156: Conference circuit feature and three-party conference supplementary service
The figure below shows a three-party conference connected in the PBX with one
internal subscriber and two exchange subscribers:
Fig. 2.157: Three-party conference feature with 1 internal and 2 external subscribers
The three-party conference feature is implemented locally in the PBX. Two B chan-
nels are seized as a result.
If the system requirements are met, the three-party conference with one internal
and two external subscribes can also be transferred to the exchange.
Fig. 2.158: Three-party conference as a service in the public network, with 1 internal and 2 exter-
nal subscribers
The supplementary service three-party conference is activated locally but moved
from the system to the public network. Only 1 B channel is seized as a result.
A
PBX
B
C
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ISDN
C
A
B
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PBX
B
ISDN
C
A
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PBX
B
ISDN
C
A
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