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Technology Stocks : Qualcomm Moderated Thread - please read rules before posting
QCOM 159.59-3.9%Nov 20 3:59 PM EST
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To: Eric L who wrote (33275)3/9/2003 5:41:55 PM
From: John Biddle  Read Replies (1) of 196713
 
I have a few questions which I hope you and others can answer to help me understand better the issues around CDMA/GSM handoffs.

1) First the simplest question: Do vendors offer handoffs from and/or to analog from any of CDMA, GSM, TDMA, or IDEN? That is, if I'm in my car driving down the highway and using my cellphone on any of the 4 digital techs listed, and run out of coverage, and there is analog coverage by that same vendor for that area, will my call be handed off to analog and I not know the difference except maybe for a beep or something the carrier has built in to warn me I'm roaming?

2) If this is being offered today, and I thought it was, then it seems to me that taking this handoff capability between one of the digital standards and analog up a notch to work between two different vendors is mostly political, and billing. Since roaming between carriers is in production, the billing problems have been solved if the whole call takes place on one network, and it seems to me doable to track the half a call that gets done on the non-primary network and treat it as a roaming call for billing. Does anyone offer digital to analog (or vice versa) handoffs across carriers today?

If yes to 1 but no to 2, my question is why not?

If yes to both 1 & 2, then what is harder about digital to a different digital than going from digital to analog?
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