chrishowells.co.uk

I run my own private Asterisk system for the house. This is in conjunction with a Linksys PAP2T (which is cheap, supports SIP, and you can plug two normal BT phones into), and Sipdroid running on my Android phone.

Although, this might sound a little over the top for a house, it does have a number of nice features. Like being able to make persistent nuisance callers go away.

As an example:

I edited /etc/asterisk/extensions.conf and found the section relating to my incoming call provider.


[draytel]
exten => xxx,1,Dial(SIP/chris&SIP/mobile&SIP/flat,25)
exten => xxx,n,Answer()
exten => xxx,n,Wait(1)
exten => xxx,n,VoiceMail(1001&1002)
exten => xxx,n,PlayBack(vm-goodbye)
exten => xxx,n,HangUp()


This code rings the two SIP extensions for 25 seconds, if there is no answer, answers the call, waits a second, before leaving the message in mailbox 1001 and 1002.

I modified it as follows:


[draytel]
exten => xxx,1,GotoIf($["${CALLERID(num)}" = "01252555029"]?monkeys,s,1)
exten => xxx,n,Dial(SIP/chris&SIP/mobile&SIP/flat,25)
exten => xxx,n,Answer()
exten => xxx,n,Wait(1)
exten => xxx,n,VoiceMail(1001&1002)
exten => xxx,n,PlayBack(vm-goodbye)
exten => xxx,n,HangUp()

You’ll also need to add the monkeys section:


[monkeys]
exten => s,1,ringing
exten => s,n,Wait(10)
exten => s,n,Playback(tt-monkeysintro)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,Playback(tt-monkeys)
exten => s,n,HangUp


This will ring the phone for 10 seconds, answer, and then play monkey noises, then hang up.

So, now, if the incoming caller ID matches “01252555029″, they are taken away by monkeys. The phone doesn’t even ring.

Bliss.