Conference - Aastra 400 Series System Manual

Features
9. 5. 6

Conference

User A can set up a conference call with several users. This can be done in three dif-
ferent ways:
• Variable conference: Here the conference participants are all listed in the same
dialling string and are all called up at the same time.
• Preconfigured conference: Here the conference participants are preconfigured
in the system configuration and are all called up at the same time.
• Three-party conference (conference from enquiry call): The conference is set up
one participant at a time. The participants in the conference are called one after
the other and connected individually (see
quiry call", page 404).
Fig. 196 Conference
Detailed Description
Tab. 194 Variable and preconfigured conference
Interface Operating sequence / signalling on the terminal Scope
A The conference leader obtains a ring-back tone
when setting up the conference.
B, C, D The preconfigured or dialled conference partici-
pants obtain ringing signalling during the confer-
ence setup and during the conference - depending
on the system configuration
• no tone at all
• the conference tone only once
• the conference tone regularly
1)
With three-party conference in the public exchange, the signalling depends on the network provider.
2)
If more than one external user is to be switched into a conference, the settings authorising exchange-to-
exchange traffic need to be observed (see
3)
With three-party conference in the public exchange, only external interfaces are possible.
4)
The settings authorising exchange-to-exchange traffic need to be observed for PISN users in the public
network or on a virtually networked PINX (see
5)
Only three conference participants are permitted if three-party conference in the public exchange is acti-
vated.
406
"Three-party conference from an en-
Possible interfaces:
internal, external
Restrictions:
1)
: • Three conference participants (up to a
• Abbreviated-dialling numbers are not
"Exchange-to-Exchange Connections", page
"Exchange-to-Exchange Connections", page
2) 3) 4)
, PISN
maximum of 6) are permitted per con-
5)
ference .
permitted
241).
System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
241).