Any difference between 'real' phone lines and VoIP / Asterisk?

[Treytor]

I'm working on a project that relies heavily on this question.

Can someone or something receiving a call be able to tell whether an incoming call is being spoofed or not, or whether it's coming from a land line vs. cell phone?

Thanks in advance!

 

[etech3]

I'm working on a project that relies heavily on this question.

Can someone or something receiving a call be able to tell whether an incoming call is being spoofed or not, or whether it's coming from a land line vs. cell phone?

Thanks in advance!

Land lines cell phones and VOIP o my!

If someone has the equipment, any number can be spoofed.
Legal or moral , that's another set of questions.

Some T-1 carriers setting up out bound lines (or channels) will use one number. Others will assign different numbers (your choice) A lot of times the equipment can be set to override this. That's why you will get "unknown, unavailable" (as in asterisk). They caller is trying to control from their end.

Now you can control some of this by capturing the info like in freepbx reports and then build a route for it (better yet do the telemarketing hell route)

It's a cat and mouse game with telemarketers. you capture the number and they switch numbers including spoofing.

call reports and call screening will knock down a lot of the spoofs.

 

[Treytor]

Thank you for the reply.

I am aware it is possible to spoof the caller ID, but I was wondering if it's possible for the recipient of a call to know it's being spoofed, or the call is coming from an asterisk system and not a 'real' phone.

 

[gizmosrcool]

I would think its hard to determine if the call is spoofed or not. The only identification is the telephone number and caller ID. Neither provides proof positive ID. Both can be tinkered with.

Nor is it easy to determine if its land line or cell. And a lot of carriers do not enforce or check the number that is set from the customer before they send it out. Back in the old days, the carriers would only allow you to send numbers you procured with them. So if you had a 5 block or 1000 block of numbers, that range is all you could set. Not now a days. You can set anything!

One can go on and on, but you never really know who is calling you, until you answer the phone. And its usually someone trying to sell you something or take your money.

 

[jroper]

I think only if you have an interconnect, and SS7 signalling, which puts you into Carrier territory can you know where the call is coming from, and then only where the PSTN is concerned.

Joe