Block calls with a twist...

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N7AS:
I get my share of telemarketer calls. I have a User Defined Digit Map (Mblk) to block these calls.

Label:        blk
DigitMap:   (1001|1?6672723381|1?3607194584|6000|0000000000)

In my InboundCallRoute: {(Mblk):}, etc...

I would like to take it one step beyond. What I would like to happen is when a call comes in that's listed in my blk DigitMap, fork the call back the number that called me showing the CID of the offending party. Maybe they will get the idea to stop calling.

ianobi:
In theory this should work:

InboundCallRoute: {(Mblk):sp1($1>$1)}, etc...

However, I see two possible problems. Firstly, you will be paying for the call back to them. Secondly, you would need to check this box:

Service Providers -> ITSP Profile A -> SIP -> X_SpoofCallerID : checked

For that to work your voip provider on sp1 would have to allow CallerID spoofing.

This is all untested for the moment. Looks like an interesting idea, so I will look deeper into it when I have time.

QBZappy:
l also tought it was interesting. Chances are that the cid received is more than likely not a real number. If it is a real number the idea of them making harassing calls to themselves is amusing.

giqcass:
Quote from: QBZappy on March 08, 2014, 05:02:59 am

l also tought it was interesting. Chances are that the cid received is more than likely not a real number. If it is a real number the idea of them making harassing calls to themselves is amusing.

Amusing but in all likelihood ineffective.  Legally(in the US) they must show Caller ID of a number they control or of a party they represent.  It's quite common for these companies to use Caller ID for a phone that is never answered. 

For the more responsible companies I see a funny result.
Their robot places a call to you.  A human from their company picks up the phone.  Said human is annoyed by the robot call and they follow the prompts to unsubscribe from future calls. You are off the list.

Funny result 2
Accidental call to you from someones personal cell phone.  Said person is connected to their own Voicemail. 


Many years ago when most of us were still using POTS I paid for selective call forwarding to stop an annoying caller.  I auto forwarded all of her calls to our local laundromat.  She thought the phone system in our town was messed up. lol




ianobi:
Another easy way to annoy unwanted callers is to send them to free demo or test destinations. Then they pay to call you and it costs you nothing to keep them on the line for a while. This works:

InboundCallRoute: {(Mblk):sp1(wbdemo@conf.zipdx.com)}, etc...

Or send them to an echo test and they can talk to themselves   :)

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