Archived from groups: alt.cellular.verizon (
More info?)
Steve Sobol wrote:
> Jason wrote:
>
>> I am wondering if there has been any official change from verizon wireless
>> about IN Calling and Caller ID Blocking. I heard for a while there might be
>> charges between VZW customers if Caller ID Blocking was used or the caller
>> ID displayed Private Caller.
>
> It shouldn't be. It's a BS excuse. If it's a Verizon cell phone, Verizon
> will always know that it's a Verizon cell phone, regardless of whether
> Caller ID is passed or not.
It used to be real simple: if a call was handled entirely internally by
the VZW network, they gave you the "mobile-to-mobile" discount, since
they did not have to pay anyone else to handle the call. But now, either
or both of the VZW phones can be on some roaming partner, and they still
give the discount, so they cannot just rely on the call being handled
internally.
Well, they could use ANI (automatic number identification), which is
used by the system for long distance billing, and cannot be blocked or
forged. But they apparently chose to use CLID for IN-calling. This can
be verified by forwarding your landline to your VZW phone, and calling
your landline from another VZW phone. To the caller, this will be billed
as non-IN (they called a non-VZW number). But it will be billed as IN to
the called VZW phone, since the CLID will be that of the original VZW
phone, even though the call was routed to the landline system and was
forwarded back to VZW. The ANI on a forwarded call would show the
forwarding phone, not the original caller.
What is **SO** bogus about this VZW claim about blocking is that CLID
info is carried across the phone network regardless of "blocking".
Blocking is just a bit in the info which tells the last switch not to
send the info to the end-user's phone. But the system has the info. It
was done this way so landline features like selective call blocking
(blocking calls from particular numbers), call return (call last number
which called me), and distinctive ringing (different ring tones
depending on whose calling) would work even if the caller blocked the
CLID. The only time the info would not be available is if some system in
the chain from the caller to the called phone did not support CLID, but
this results in "Out of Area", "Unavailable", or such, not "blocked" or
"private". This rarely happens any more, and is not under the control of
the caller. So VZW has the info in the case of a blocked call; they just
use it as an excuse to get the otherwise-free call into a billable category.
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