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Chapter Seven: Setting up the Phone Ports Assigning phone numbers

Assigning phone numbers

The DIVA LAN ISDN Modem provides flexible support for the assignment of phone numbers.

Single number

If you have one ISDN number, it is used for both data calls, and voice calls. When an incoming call is received,

the DIVA LAN ISDN Modem will automatically determine if the call is voice or data, and route the call

appropriately.

Multiple numbers

If your ISDN line supports multiple subscriber numbering (MSN), the DIVA LAN ISDN Modem allows you to

assign two numbers to each PHONE port. Each number will sound with a different (distinctive) ring pattern so

you can identify incoming calls properly. (You can swap the distinctive rings. See page 82 for details.)

Voice calls can be assigned to many numbers. Data calls can only be assigned to one number. However, you

can choose to share a number between data and voice. When an incoming call is received, the DIVA LAN

ISDN Modem will automatically determine if the call is voice or data, and route the call appropriately.

Main number

If you have multiple numbers on your line, then one number (usually the first) is designated as the main

number, directory number, or number that appears on your phone bill. This has significance for certain

services like Favorit Internet in Denmark, who will reject your data call if you are not calling from your main

number. If you need to connect to a service with this type of restriction, make sure that your main number is

assigned to the data port.

Examples

If you have five numbers, you could assign them as follows:

If you have four numbers, you could assign them as follows:

Use of secondary numbers and TeleDanmark’s Duet service

TeleDanmark’s Duet service offers, as a package, a mobile phone number along with ISDN basic access and

three directory numbers. With this service, if the mobile phone is switched off, calls placed to the mobile phone

number are automatically forwarded to a specific directory number as assigned by TeleDanmark.

To make use of this service with the DIVA LAN ISDN Modem, you would enter this ‘mobile forwarding’

number in the secondary number field in order to receive the forwarded calls.

For example, suppose you are assigned three numbers: 555-1111 (which you want to use for the telephone),

555-2222 (which you want to use for your fax), and 555-3333 (your mobile forwarding number). You connect

your telephone to phone port 1 and your fax machine to phone port 2. To configure this on the DIVA LAN

ISDN Modem, you need to:

1st number 2nd number

Data calls (in/out) main number (does not apply)

PHONE port 1 number 2 number 4

PHONE port 2 number 3 number 5

1st number 2nd number

Data calls (in/out) main number (does not apply)

PHONE port 1 number 2 number 3

PHONE port 2 main number number 5

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Eicon Networks DIVA T/A ISDN Modem Guía de usuario Pagina 80