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To: John F. Dowd who wrote (14074)	2/25/1998 2:34:00 PM
From: jimmy	Read Replies (1) \| Respond to of 45548

Up more than 2 bucks!! any news? jimmy

To: John F. Dowd who wrote (14074)	2/25/1998 3:48:00 PM
From: David Lawrence	Respond to of 45548

John, I believe the problem lies with client side K56Flex modems, not server side. Apparently, there is insufficient memory on the Rockwell chipsets to hold both V.90 and K56Flex. Not a particularly large problem, but certainly typical of the ROK cheapchip design, IMO. There has been rumor that some "software upgradeable" K56Flex client modems don't have enough memory or are not robust enough to properly run V.90, but it remains speculation at this stage.

To: John F. Dowd who wrote (14074)	2/25/1998 4:00:00 PM
From: Mang Cheng	Read Replies (1) \| Respond to of 45548

John, I found something to do with kflex memory : FWIW : archives.real-time.com >My question is for any particular NAS, Is there enough room on the DSP's >for both codes?, Hell, When KFLEX first came out (ASCEND and ROCKWELL) >dropped support for V.Fast and V.FC (Which I know Lucent already doesn't >support) > >Will Ascend have enough room on the DSP's for > >V.PCM >KFLEX >V.FAST >V.FC Yes. Plus some... >I'm guessing not, So, I'm guessing (yet again) that support >will be dropped for the older legacy protocols of V.Fast >and V.FC? > >Correct Kevin? No. We are currently testing a beta version that includes all of the above including K56Plus.

To: John F. Dowd who wrote (14074)	2/26/1998 1:18:00 PM
From: Mang Cheng	Read Replies (1) \| Respond to of 45548

"ISPs May Fall Behind Users in Switch to V.90 " by Brian McWilliams, PC World News Radio February 24, 1998 Nearly every major 56-kbps modem vendor has promised free upgrades to the V.90 international standard later this quarter. But if you own a K56flex modem based on Rockwell chips, think twice before downloading and installing a V.90 patch to the firmware. "You can be a very happy Flex user dialing in to an Ascend Max that supports Flex," says Lisa Pelgrim of Dataquest. "You hear that the [V.90] standard is out, so you go to your manufacturer and get your flash upgrade. Then you dial in to your service provider--but now you don't connect at the high speed because they haven't upgraded." A Rockwell representative confirmed on Tuesday that current Rockwell-based client-side modems don't have enough flash memory to store V.90 and K56flex firmware at the same time--what modem vendors call "dual mode." If you upgrade to V.90 before your ISP does, you could find yourself back in the world of V.34, connecting at 28.8 or 33.6 kbps. "It's a real problem," says Pelgrim. "It will make the whole upgrade cycle more painful for users." Pelgrim recommends that K56flex modem owners wait to upgrade to V.90 until their ISPs do, a transition that probably won't begin for at least another month or two. In the meantime, if you need to connect to both V.90 and K56flex sites, or if you upgrade to V.90 and want to go back, some modem vendors will offer tools for toggling the firmware between V.90 and K56flex. Patrick Kennedy, director of PC products for Hayes Microcomputer, says that next month Hayes will offer such a tool to owners of its older Rockwell-based modems: "Users will download a wizard file that contains both K56flex and V.90 firmware, and they can [toggle between the two] just by rerunning the wizard." Telecommunications analyst John Navas says he doesn't expect users will need to flash their modems on a regular basis. But he says modem vendors can give owners some peace of mind by making the firmware tool available. Hayes today announced that next month it will begin shipping new 56-kbps modems based on Rockwell's new two-chip design. Kennedy says that configuration will have room for both V.90 and K56flex firmware: "When the user dials out, the modem will probe the server and identify whether it's a V.90 or K56flex server, and connect appropriately." But not every new Rockwell-based V.90 modem will be built on the new chip set, according to Pelgrim of Dataquest, so be wary of such modems if you need dual-mode capability. Lucent, the other big K56flex chip set maker, hasn't yet announced its plans for backward compatibility. 3Com's U.S. Robotics-labeled V.90 client modems are all backward compatible to the X2 technology USR developed, so upgrading should be easier for X2 users. pcworld.com Mang