CDMA modem and voice

I understand the features and limits of GPRS modems where class A GPRS
can do Voice and Data at the same time and Class B can hold the data
channel open during a voice call and a voice call can interrupt a data
transmission.

How does CDMA measure up in this space.

Also can a bluetooth CDMA phone put a laptop on the net with DUN.
How does Sprint know when your doing this and not charge the extra
$15.00?

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George wrote:
> I understand the features and limits of GPRS modems where class A GPRS
> can do Voice and Data at the same time and Class B can hold the data
> channel open during a voice call and a voice call can interrupt a data
> transmission.
>
> How does CDMA measure up in this space.

At present, Sprint's implementation of CDMA is such that an active data
channel will force voice calls to voicemail. When the data channel is
open but dormant, voice calls can proceed normally.

I believe simultaneous voice and data will be available with EVDV.


> Also can a bluetooth CDMA phone put a laptop on the net with DUN.

The T608 is capable of this, as is the PPC6600/6601. Not sure what the
status is of the LG PM325, we'll find out when it's released. And the
Treo 650 will not INITIALLY support DUN, but mention has been made by
Sprint that this functionality will be made available in a firmware update.

See:
http://www.treocentral.com/content/Stories/481-1.htm

> How does Sprint know when your doing this and not charge the extra
> $15.00?

See the above link. Sprint's (now-official) posture with regards to
abusing Vision use seems to be hinged more on sheer volume of data
transfer than how the connection is being accessed. If you download
gobs of data, you'll be red flagged. If you keep it to a minimum, they
generally won't bother you.

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