jcp@cgch.uucp (Joseph C. Pistritto) (02/23/90)
There's no reason (none at all), why cellular phones shouldn't
generate Caller*ID (eg. the person being called FROM a cellular phone
would get correct Caller*ID displayed on his box), as the 'switch'
part of a cellular system is pretty much a standard model. All the
interesting stuff happens between that switch and the user. Each
cellular customer has the virtual equivalent of a local loop, (in the
early systems, I think there was actually a physical local loop),
which has an assigned phone number. So the switch generates Caller*ID
information when placing the outbound call into the network.
Further, I'm sure the cellular switch RECEIVES the Caller*ID
info just fine as well. The problem is getting it onto the display in
the cellular mobile. I don't think there's any provision in the
cellular standard for text information to be passed to the remote
during call setup. (I could be wrong here, it's been a couple years
since I saw the relevant documents). In any event, as far as I know,
older phones couldn't support any change to implement this.
-jcp-
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Joseph C. Pistritto HB9NBB N3CKF
'Think of it as Evolution in Action' (J.Pournelle)
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