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Topic # 57445 13-Feb-2010 20:49
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Just received one of those holiday scam calls with callerid of 1300123456 which is clearly not a valid caller id. I was wondering how these calls get into the NZ PSTN. Are there providers which accept any caller id from their customers? Or do these calls come via other providers overseas.
I was wondering why the Telco's don't enfore a rule requiring valid caller id on their interconnect links and disconnect anyone who dosen't comply.

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  Reply # 298724 13-Feb-2010 20:57
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Yes. Every 2d cell phone call me. I get my own number showing up on caller id. and 2talk you can set the caller id to any caller id you like.




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  Reply # 298727 13-Feb-2010 21:31
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Ive had an 09 number call a few times between 4-7 and when I have gone to call back to see who it is I get a not connected tone

 
 
 
 


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  Reply # 298731 13-Feb-2010 21:44
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Telecom are guilty of it, when my ex flatmate worked there it would have a 09 number that was no good to call back on. I had no idea it was them so I blocked it on asterisk.




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  Reply # 298810 14-Feb-2010 11:00
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1300 numbers are used in Australia, there is a possibility that 1300 123456 could actually be a valid number.

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  Reply # 300471 19-Feb-2010 17:45
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Caller ID is for the end-user benefit; its not used to interconnect between telcos. If you have enough evidence of a real scam, contact the police with the exact time of the call, and your telco will help the Police trace the real caller back to their originating telco. You probably have to virtually prove its a criminal before Police will bother investigating.




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  Reply # 300597 20-Feb-2010 21:21
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 Ive had an 09 number call a few times between 4-7 and when I have gone to call back to see who it is I get a not connected tone


Telecom are guilty of it, when my ex flatmate worked there it would have a 09 number that was no good to call back on. I had no idea it was them so I blocked it on asterisk.



Just because you cannot connect back to a number does not mean that it is not a real number.  You can configure ISDN equipment (pra/bra) to make, but not receive calls. Same for IP trunks.  If you config the ISDN to not receive calls you get the disconnected tone or message.  




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  Reply # 300609 20-Feb-2010 22:15
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If I cant call it back, its a fake number as far as I am concerned.




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  Reply # 300634 21-Feb-2010 07:03
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webwat: Caller ID is for the end-user benefit; its not used to interconnect between telcos. If you have enough evidence of a real scam, contact the police with the exact time of the call, and your telco will help the Police trace the real caller back to their originating telco. You probably have to virtually prove its a criminal before Police will bother investigating.


Thats actaully incorrect, Caller ID is most definetly used in Telco interconnects without it New Zealands Tollbypass (NCA) wouldn't work.




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  Reply # 300635 21-Feb-2010 07:14
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cws82us: Yes. Every 2d cell phone call me. I get my own number showing up on caller id. and 2talk you can set the caller id to any caller id you like.


In NZ correct Caller ID SHOULD be presented, wheather that be a Pilot Number or DDI the correct number should be presented, now this number can be marked as restricted so the Called party will not see the number but the Carriers will.

On a call forward from your own number (ie forward all calls from your home line to a mobile) you will see your own number possibly as some networks will not pass redirecting number cparty numbers.

2talk may be doing calling Name not CLI which is passed via VOIP networks, if they are they allowing number changing then that is pretty bad thing and a couple of regulatory authorities would have issues with this as well as interconnected carriers.  




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  Reply # 300636 21-Feb-2010 07:19
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richms: If I cant call it back, its a fake number as far as I am concerned.


Numbers can be used as non answering Pilot numbers for companies, so may used just as a billing number.

The number will be a valid number assigned to a company who are not using as a answered number, but the number will be an assigned valid NZ number so it is not fake.

Fake numbers are Numbers that have not been assigned to and you have no authority to use.




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  Reply # 300655 21-Feb-2010 09:44
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maverick: 2talk may be doing calling Name not CLI which is passed via VOIP networks, if they are they allowing number changing then that is pretty bad thing and a couple of regulatory authorities would have issues with this as well as interconnected carriers.  


Before you can use another number as your outgoing CID on 2talk, you have to recieve a call on that number and enter a code given over the phone into the 2talk website.




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  Reply # 300724 21-Feb-2010 15:21
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Which means you must have been allocated this number and it is a valid CLI, not something like 091234567 or 09 111 11111 which is not a valid number and has not been allocated to you as an end user




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  Reply # 300742 21-Feb-2010 16:21
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maverick: Which means you must have been allocated this number and it is a valid CLI, not something like 091234567 or 09 111 11111 which is not a valid number and has not been allocated to you as an end user


Well at least be able to answer calls on that number...




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  Reply # 301060 22-Feb-2010 16:53
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Just had some screachy voiced telemarketer calling from "London" (I think its just outside bombay) and the caller id from italk was 640300 so it got past the anon call rejection.

I dont think they are taught what "no, go away" means in telemarketer school...




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