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To: Bernard Levy who wrote (12100)	7/7/1998 5:45:00 PM
From: Joe NYC	Read Replies (1) \| Respond to of 152472

Bernard, However, this is not the case for wireless telephony, where voice activity is monitored to save bandwidth. This is also true of voice over IP. In fact, one of the big savings of voice-over-IP is its ability to use speech compression to significantly decrease the amount of transmitted data. Doesn't the the CDMA wireless line work on a similar principle as voice over IP? The voice gets compressed first, then sent to the base station and is reassembled there and converted to regular analog signal. I guess the differences are that in CDMA system you know that packet 1 will come before packet 2 etc, whereas in voice-over-ip, you don't know how the sequence how packets will arrive. One thing that's unclear to me is how the CDMA modems operate. Do they just generate standard modem "noise" which is sent as voice, or do they do anything special with it. If they use the standard modem sound as voice, then the modems would be bandwidth hogs. Joe

To: Bernard Levy who wrote (12100)	7/7/1998 8:08:00 PM
From: Maurice Winn	Read Replies (2) \| Respond to of 152472

Bernard, with voice over IP, are there disadvantages compared with voice over cdmaOne digital wireless? cdmaOne involves voice compression and non-voice exclusion. Ericsson has declared IP to be their long term position, much as Microsoft has declared the Internet the be-all and end-all. Should cdma2000 be aiming at IP as the be-all and end-all? One of the advantages I see is that domain names, email addresses etc are a lot easier to manage than phone numbers, which only memory freaks can handle. Anyone can remember BernardLevy@hotmail.com, but nobody can remember 00 1 619 314 1592 and when phones have voice activated dialing, it will be easier to say "Denwa,[Japanese for phone] call, BernardLevy@hotmail.com" than look up your name, then say a bunch of numbers. I suppose one could look up your name in the worldmail listing on the Web then maybe just push "send". Anyway, if you can enlighten me I'd appreciate it. 1 I want no more phone numbers. 2 I want good clear voice with outside noise filtered. 3 No voice delay. 4 Cheap. Is that consistent with IP and Qualcomm's cdma2000? Thanks, Mqurice