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The Facts about Cellular and Caller ID

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John R. Covert 24-Feb-1990 0754

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Feb 24, 1990, 8:04:58 AM2/24/90
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>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.

Dead wrong.

Every cellular switch in the U.S. is connected to the local network
just like a PBX. No phone company is currently offering SS7 (the
prerequisite for Caller ID) as a method of connection for PBXs. This
means that where there is Caller ID, the number which will appear is
_not_ the cellular number, but rather the number assigned to one of
the DoD trunks. In fact, when I call the New England Telephone
operator in Boston from a NYNEX or Southwestern Bell cellular phone,
the operator doesn't have the cellular number.

>Further, I'm sure the cellular switch RECEIVES the Caller*ID
>info just fine as well.

Nope. Sorry. Again, cellular switches are connected without the
benefit of SS7, and have no way to receive Caller ID info, which can
_only_ be passed on lines (not trunks).

>I don't think there's any provision in the cellular standard for text
>information to be passed to the remote during call setup.

Correct, and it probably won't be added to the standard.

/john

Bob Sherman

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Feb 25, 1990, 7:27:54 PM2/25/90
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In article <43...@accuvax.nwu.edu> it is written:

>>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.

Upon checking here in the Miami, Florida area, where caller ID is
currently under consideration by the PSC, I am told there will be NO
caller ID available on calls made FROM cellular phones or Pay phones.


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>> Miami's Big Apple - 305-948-8000 - 24 hours - 300/1200 - PCP'able <<
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