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6-4 User’s Reference Guide
2. Select Switch Type and press Return. From the pop-up menu, select the switch protocol your ISDN service
provider uses.
For European countries other than the United Kingdom, use the EuroISDN/ETSI setting. United Kingdom
users select United Kingdom - EuroISDN.
3. Select Directory Number 1.
The router attempted to detect your Directory Number(s) when you selected Auto-Detect in Step 1.
If it succeeded, the directory number(s) will be displayed, and the screen will indicate “Detected” (as
shown on page 6-3).
If it failed to detect your directory numbers, the fields will remain blank, and you must enter the primary
directory number as you would dial it, including area code. Do not enter access prefixes such as Centrex or
PBX prefixes like “9” (for an outside line). Press Return.
4. If you have a second directory number, select Directory Number 2 and enter the secondary directory
number as you would dial it, including area code. Press Return.
5. If you require a dialing prefix such as “9” to access an outside line on a PBX or Centrex phone system,
select PBX Prefix and enter your dialing prefix. Press Return.
6. Select Data Link Encapsulation and highlight the method of encapsulation that you want to use from the
pop-up menu. The choices offered are PPP or HDLC. The default for switched interfaces is PPP. Press
Return.
7. Select NEXT SCREEN and press Return. The “Easy Setup Profile” screen (shown on page 6-5) appears.
Any changes you make to the ISDN configuration now or in the future will take effect immediately. You do not
have to restart the router.