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v90 - Kflex - x2

Posted on 1998-10-11
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Last Modified: 2013-12-27
I have a zoom modem that is supposed to be kflex and v.90.
It connects to one isp that has kflex modems at about 52k and that is great.  However, I can't connect with another isp that has 56k US Rhobotics modems.  The modems talk, but will not connect.
If I use a US Rhobotics 56k modem, it connects and has the two bongs, and it works.  Zoom claims that their modem is v.90.  Why won't it connect?
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Question by:donb1
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Expert Comment

by:daadams
ID: 1145107
The second ISP probably doesn't support the v90 standard yet. Check with the tech support for that ISP. It is probably only supporting x2 right now. Let me know if this is the problem.
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MATTCEI earned 50 total points
ID: 1145108
U.S.Robotics uses the X2 technology,so if the second ISP hasn't added V.90 yet,you're left with K56Flex on the Zoom connecting to USR's X2 at the ISP,which means no 56K.However,the Zoom should at least drop down to 33.6K.You could try adding to the init string at Control panel - Modems - Properties - Connection - Advanced - Extra Settings to force no-56K:

S32=0 or S32=98 or +MS=11,1,14400,33600

If this works,create another profile without the extra init values for connecting to the first ISP.
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Author Comment

by:donb1
ID: 1145109
The second isp has US Rhobotics that have been upgraded to v.90.  My question is - Why won't my zoom with v.90 connect with the isp without kflex, but with v.90.
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Expert Comment

by:MATTCEI
ID: 1145110
Try forcing V.90 with +MS=12,1,14400,56000.If this works,you can use it for both ISPs.

If any of the previous strings work,the Zoom may not have a working V.90 protocol,or may not support V.90 at all.Run the diagnostic in Control Panel - Modems,look at the 'ATI7 Options' line.This shows all the protocols your modem supports.If V.90 is there,see if you can find a firmware update at Zoom.
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