TANDBERG D13192 User Manual
Technical Description of
TANDBERG Gateway
with software version G2
D13192 Rev. 02
9
4.1.3 Dial In Services
4.1.3.1 Direct Inwards Dialing (DID)
By enabling this feature, it is possible to make a direct mapping between ISDN numbers and
H323 aliases. This requires that the PRI lines connected to the TANDBERG Gateway are
configured with a range of numbers. This range of numbers should be large enough to associate
one ISDN number to each H.323 device that is intended to make use of the DID feature.
The H.323 aliases must be a portion of the ISDN number plus a prefix.
Example:
The TANDBERG Gateway is configured to use 4 digits of the ISDN Number, and 9 as the
H.323 prefix:
An endpoint dials the ISDN number 67117780
The TANDBERG Gateway transfers the call to the H.323 Alias 97780
By enabling this feature, it is possible to make a direct mapping between ISDN numbers and
H323 aliases. This requires that the PRI lines connected to the TANDBERG Gateway are
configured with a range of numbers. This range of numbers should be large enough to associate
one ISDN number to each H.323 device that is intended to make use of the DID feature.
The H.323 aliases must be a portion of the ISDN number plus a prefix.
Example:
The TANDBERG Gateway is configured to use 4 digits of the ISDN Number, and 9 as the
H.323 prefix:
An endpoint dials the ISDN number 67117780
The TANDBERG Gateway transfers the call to the H.323 Alias 97780
4.1.3.2 Interactive Voice Response (IVR)
This feature is used when one 'main' ISDN number is used for the TANDBERG Gateway. When
dialing into the TANDBERG Gateway on this number, the user will be greeted with a welcome
picture and sound. The user can then enter the H.323 Alias of the site they wish to call using
DTMF tones.
IVR should be used when one single ISDN number is to be used for the TANDBERG Gateway
and when the endpoints using H.323 should be independent of the ISDN number used for the
TANDBERG Gateway.
This feature is used when one 'main' ISDN number is used for the TANDBERG Gateway. When
dialing into the TANDBERG Gateway on this number, the user will be greeted with a welcome
picture and sound. The user can then enter the H.323 Alias of the site they wish to call using
DTMF tones.
IVR should be used when one single ISDN number is to be used for the TANDBERG Gateway
and when the endpoints using H.323 should be independent of the ISDN number used for the
TANDBERG Gateway.
4.1.3.3 TCS-4
TCS-4 uses the same ISDN number as IVR. The user can add the H.323 alias to the ISDN
number separated by a * . The TANDBERG Gateway will automatically transfer the call to the
H.323 alias.
TCS-4 uses the same ISDN number as IVR. The user can add the H.323 alias to the ISDN
number separated by a * . The TANDBERG Gateway will automatically transfer the call to the
H.323 alias.
Example:
Endpoint dials 6711111*1234
Gateway will transfer the call to the H.323 alias 1234
Endpoint dials 6711111*1234
Gateway will transfer the call to the H.323 alias 1234