Phone number spoofing!!!!

Forums › One New Zealand (including Vodafone, WxC, Farmside) › Phone number spoofing!!!!

Colinj

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#10332 16-Nov-2006 19:12

Is it possible to have mobile to landline call that appears to come from one number but actually is coming from another number? I have seen the "spoofing" cards you can purchase. Do these work here in NZ. Have had a number of

nuisance calls that according to the inhouse systems are from one number but I know they have come from another person.

freitasm

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#52698 16-Nov-2006 19:48

Welcome to Geekzone. If you have received nuisance calls contact the mobile operator directly and they will put a trace on your account.

tonyhughes

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#52716 16-Nov-2006 21:01

call telecom and log the complaint, and also do the same with the police. ihavent heard of that capability, but every system can be hacked/cracked in some way, so it wouldnt surprise me - though im sure it would have come to light sooner if that exploit worked here in NZ

willnz

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#52739 16-Nov-2006 22:05

Yes, and it is very simple to do using VoIP.

For obvious reasons I'm not going to go into details here (although Google knows all) - but it has been (and probably always will be) done before, and can be VERY difficult to trace as most VoIP providers use overseas wholesale carriers to put their calls through.

tonyhughes

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#52776 17-Nov-2006 08:15

willnz: Yes, and it is very simple to do using VoIP.

For obvious reasons I'm not going to go into details here (although Google knows all) - but it has been (and probably always will be) done before, and can be VERY difficult to trace as most VoIP providers use overseas wholesale carriers to put their calls through.

Thanks for not posting details, but as you say, Google is a great search tool, and with the good comes the bad.

sbiddle

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#52782 17-Nov-2006 09:01

It's actually a very common feature on some USA based VoIP providers so that legitimate users can set their CID/ANI to whatever they want. Unfortunately with that does come the potential for fraudulent use much like the ability to fabricate your SMS sender address using several of the bulk SMS gateways.

The provider that was used by the Telecom 027 voicemail hackers last year can still be used to spoof your CID and unfortunately it's something that does make tracing annoying/fraudulent calls very difficult these days.

willnz

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#52811 17-Nov-2006 12:22

sbiddle: Telecom 027 voicemail hackers

No plural - charges against the second party were dropped, remember

exportgoldman

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#52814 17-Nov-2006 13:14

Colinj: Is it possible to have mobile to landline call that appears to come from one number but actually is coming from another number? I have seen the "spoofing" cards you can purchase. Do these work here in NZ. Have had a number of
nuisance calls that according to the inhouse systems are from one number but I know they have come from another person.

As other people have said, VoIP services will allow you to do this, but ISDN (basic rate) lines will also allow you to do this.

ISDN lines are used a lot in business for the trunk lines to a companies PABX system, so it's been a 'feature' since time began, that you could program the CID number for outbound calls, so your clients would see your main number as the originating number, instead of the stepping lines.

Telecom can track and trace all this down as their system works on a lower level.

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willnz

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#52817 17-Nov-2006 13:38

exportgoldman:
Colinj: Is it possible to have mobile to landline call that appears to come from one number but actually is coming from another number? I have seen the "spoofing" cards you can purchase. Do these work here in NZ. Have had a number of
nuisance calls that according to the inhouse systems are from one number but I know they have come from another person.

As other people have said, VoIP services will allow you to do this, but ISDN (basic rate) lines will also allow you to do this.

ISDN lines are used a lot in business for the trunk lines to a companies PABX system, so it's been a 'feature' since time began, that you could program the CID number for outbound calls, so your clients would see your main number as the originating number, instead of the stepping lines.

Telecom can track and trace all this down as their system works on a lower level.

While that's true for ISDN lines, the main providers of ISDN in New Zealand (Telecom, TelstraClear, et al) limit the caller ID that you can set. Generally, they'll only accept a caller ID if you actually own the particular number. For example:

If you own 09 333 1000 to 09 333 1099, you can set the Caller ID on outgoing calls to any of those numbers, but you can't set it as 09 333 2000, or 03 123 4567, or 111, or anything like that.

And this sort of thing is exactly the reason why you CAN'T do that on most ISDN lines - to prevent fraud and abuse.

richms

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#52825 17-Nov-2006 14:02

This does make a mockery of places that identify the caller soley by their caller id.

It would make it even easier to find peoples addresses. Previously I have called pizzahut with the number restricted and given the number that I want to find more info out on to them, they then give useful information, recently I found they stopped doing that (guess why) but they are quite happy to believe the caller ID.

Richard rich.ms