Auerswald COMpact 4000 Operation Manual page 608

Settings
VoIP
VoIP Account Settings
Note: Land line connection prefixes are configured separately (Public
switched tel. networks > Exchange line request).
Local area code
Phone number prefix (area code, e.g. 0208 for Greater London) of a location for which the
account's VoIP provider has provided the phone numbers.
Note: Some countries (e.g. Denmark, Greece, Luxembourg) do not have a
fixed character string for their local area codes. Leave the entry field empty if
this also applies to the city of the VoIP account.
Country
Country for which the account's VoIP provider has provided the phone numbers.
Account number
This (exchange line access number) is an internal number. You can select any of the numbers
in the internal supply of phone numbers. This is then used for the specific VoIP access point.
Notes:
A number cannot be allocated twice.
Using numbers with few digits (two- or three-digit numbers) inevitably
restricts the possible supply of numbers that require more digits. For
example, if the phone number 12 is assigned, the phone numbers 120 to 129
and 1200 to 1299 are no longer available.
The default exchange line access number on the PBX is 0 in the factory
settings. However, this can be changed. Note that changing the exchange
line access number restricts the telephone numbering plan.
User name
User name assigned by the VoIP provider when the account was set up. It is used to identify
the user to the VoIP provider.
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COMpact 4000 - Firmware V6.6A - Installation, Operation and Configuration V03 03/2016