Now that we’ve gone over some more of the basics, let’s look at a few popular functions that have been incorporated into Asterisk.
Zapateller() is a simple
Asterisk application that plays a special information tone at the
beginning of a call, which causes auto-dialers (usually used by
telemarketers) to think the line has been disconnected. Not only will
they hang up, but their systems will flag your number as out of
service, which could help you avoid all kinds of telemarketing calls.
To use this functionality within your dialplan, simply call the
We’ll also use the optional
nocallerid option so that the tone will be
played only when there is no Caller ID information on the incoming
call. For example, you might use
Zapateller() in the
s extension of your
[incoming] context, like this:
[incomimg] exten => s,1,Zapateller(nocallerid) exten => s,2,Playback(enter-ext-of-person)
Another handy feature is called “call parking .” Call parking allows you to place a call on hold in a
“parking lot,” so it can be taken off hold from another extension.
Parameters for call parking (such as the extensions to use, the number
of spaces, and so on) are all controlled within the
features.conf configuration file. The
[general] section of the
features.conf file contains four settings related
to call parking :
This is the parking lot extension. Transfer a call to this extension, and the system will tell you which parking position ...