from the analog times this is basic for the cell phones, only
the out-of-coverage time is normally about 10 some seconds.
I guess why several minutes for PHS is because they have excessive
resources for the low traffic.
J-Phone has a simple low tech for many years for the J-Sky services
over CSD. the line will be cut off after TO and redial again on
the next data request, transparent to the higher level protocols.
using this, J-Phone is able to bill on data volume without PDC-P
... why Europeans had to wait for GRPS to provide data services?
>From: "dtalbot" <dtalbot@j-com.co.jp>
>
>This page from DDI's site explains some of the wonders of PHS packet
>technology: the ability to keep sessions alive even when the air-link
> >drops. There aren't any base stations on the train as far as I know.
>
>http://www.ddipocket.co.jp/data/air_tushinantei.html
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Received on Tue Jul 9 12:20:19 2002