Aastra 400 Series, Системное руководство

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Identification elements
74 System functions and features as of R3.0
syd-0367/1.3 – R3.0 – 03.2013
4. 1 Internal and External Ringing Patterns
The ringing pattern provides a means of identifying whether the call originates
from within the PBX (internal call) or from the outside (external call). The rhythm of
the ringing pattern differs in each case
Fig. 23 Single ringing tone
1)
Fig. 24 Double ringing tone
1)
Calls with the Internal ringing pattern:
• Calls from internal users
• Calls from the public network if Ringing pattern = single ringing tone is set in the
terminal configuration (setting for analogue terminals only).
Calls from users from the private network (PISN users):
– Calls from the private leased-line network
– Calls from virtual network PISN users
• An enquiry call from a user with an exchange call on hold if the parameter Ring-
ing pattern at enquiry destination = internal is set in the common settings of the
user configuration (see "Hold (enquiry call)", page 399 ).
Calls with the External ringing pattern:
• Calls from the public network
– if they do not originate from a virtual network PISN user and
1)
The way in which ringing patterns are assigned to internal and external calls varies from one country to the
next.