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COMfortel 1400 IP/2600 IP/3600 IP - Firmware V2.6 - Operation/Configuration - V05 09/2016
Settings
Accounts
The DDI (Direct Dial In) is the extension number for dialling directly to a
specific subscriber on a telephone system. Example: In the number 0 53 06
/ 92 00 - 700, 700 is the Direct Dial In number (DDI) for the Auerswald info-
line.
Requirements:
•
Set connection type
SIP trunking
(Settings > Accounts > Account
settings)
Enter the DDI main number (e. g. 92 00) without area code assigned by the
VoIP provider.
Note:
If you assigned a DDI main number, in the Configuration Manager
under Settings > Accounts > Configure > Numbers > Configure, you
must also enter the DDI number for the telephone in the entry filed
Number
and select
DDI (Direct Dial In)
in the list field
Subscriber
number type
. The DDIs are assigned by the provider.
BLF resource list subscription
BLF (Resource List Subscription) is a SIP function. For every VoIP account
that has Direct Dial In numbers (DDI numbers), a Resource List
Subscription can be created which monitors the engaged status of other
extensions with DDI numbers.
Requirements:
•
Knowledge of the VoIP provider's subscription URI
Important:
The BLF resource list subscription function (BLF according
to RFC 4662) is currently not available on PBXs.