It's all about Caller ID spoofing. If you are allowed to send anything you could abuse that, and since there are plenty of services that use Caller ID from the PSTN for authentication that could be a problem. Wholesale carriers might allow it between themselves (trusted), but it would be undesirable to allow it for end-users. If you actually own the number (such as with DIDs) then that's a slightly more specific case. If you could prove ownership to Y & Z and they had a configurable whitelist then they might be able to add them to the list since they can then trust you for those numbers, but they couldn't do that for any random number you might send. Proving ownership (and that you still own it) wouldn't be a very simple task to handle securely though? -Steve On 12 July 2013 14:41, Ken Rice <krice@freeswitch.org> wrote:
I tend to disagree with that comment about a decent operator... I find the opposite to be true... If you have DIDs from say Carrier X, and you want your calls to be able to go out Carriers Y & Z and you don’t have any DIDs with carrier Y & Z how are you supposed to terminate with them... Even better you have a few DIDs with all of them, you should be able to send CLID for any of your DIDs out any of your carriers...
On 7/12/13 12:46 AM, "Yehavi Bourvine" <yehavi.bourvine@gmail.com> wrote:
I have a similar problem. I set the callerID to the user's extension, so he knows this is a forwarded call.
A decent operator won't accept a callerID not fron your range. I guess you understand why.
Yehaci.
בתאריך 12 ביול 2013 07:47, מאת "Shishko" <shishko69@gmail.com>:
Hi,
when a user redirects its phone to mobile number, ITSP rejects call because caller id is not in our range of numbers. If I change CID to one of our numbers, call is accepted, but users would like to see original CID . Is there a way I could deflect a call to ITSP so user could see original caller id?
Thanks,
Denis
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