Zapateller( )
Uses a special information tone to block telemarketers
Zapateller(options)
Generates a special information tone to block telemarketers and other computer-dialed calls from bothering you.
The options argument is a pipe-delimited list of options. The following options are available:
answer-
Causes the line to be answered before playing the tone
nocallerid-
Causes Zapateller to play the tone only if no Caller ID information is available
; answer the line, and play the SIT tone if there is no Caller ID information exten => 123,1,Zapateller(answer|nocallerid)