System interfaces
46
System functions and features as of R4.1
syd-0570/1.2 – R4.1 – 08.2016
Situation: The existing call connection of an MiVoice Office 400 user already seizes a
trunk line to the up-circuit communication server. The procedure for setting up an in-
quiry call depends on the type of terminal:
• Analogue terminal
– Flash: Dialling tone of the MiVoice Office 400 communication server
– Flash *42: Dialling tone of an up-circuit communication server
• System phones
– Enquiry call menu: Dialling tone of the MiVoice Office 400 communication server
– Key with macro "I*42": Dialling tone of an up-circuit communication server
Using the exchange's features
To activate features on the public network such as the exchange feature "Call Forward-
ing" from the system itself, you need to seize a trunk line. The feature can then be en-
tered in accordance with the service provider's operating instructions.
2. 1. 4. 2 Attenuation on analogue network interfaces
With analogue network connections you have a choice of four different attenuation set-
tings:
• Long or
• Long D for long lines
• Short or
• Short D for short lines
On lines with a loop resistance < 280 Ω Short or Short D should be selected to avoid
problems with echo or instability (feedback).
The "… D" settings are used to increase the volume in an "analogue exchange - digital
terminal" connection type by 3 dB in both directions as this type of connection is gener-
ally perceived as too quiet. The reference level is modified accordingly on the expan-
sion card. Due to the restriction to the aforementioned call type the "… D" setting does
not result in an increase if an analogue terminal interface is involved in a connection.
Note:
"… D" setting should not be used (or only once the stability conditions have been thoroughly
clarified) if the equipment (Terminal Adapter) operated on digital interfaces also features a four-
wire to two-wire conversion, i. e. an analogue two-wire interface.
To Next Page
Loading...
