December 2001
Intermediate to advanced
608 pages
25h 14m
English
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Name
isdn caller — interface
Synopsis
isdn callerphone-number[callback] no isdn callerphone-number[callback]
Configures
ISDN caller ID screening
Default
Disabled
Description
If your ISDN switch supports caller ID, this command lets you specify
a phone-number from which incoming
connections are allowed. If the inbound call does not originate from
this number, it will be rejected. You may use the letter
x in the phone number as a wildcard character; for
example, 458-xxxx means “any number in the
458 exchange.” The callback keyword causes
the router to reject the call and initiate a callback to the
caller’s number; this feature may help you manage phone costs.
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.