Ascend Archive
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Re: (ASCEND) no connect with older modems after upgrade
At 02:29 PM 8/25/97 -0500, Norm McCaffery wrote:
>
>We fixed this on our first upgrade by using the i13 release. But, since
>the new Rockwell code is not in the 5.0ixx branch we are now using the p20
>version and still having the problem with older 14.4 modems. There is
>something in or missing from the 5.0i branch that makes it work with
>these modems, now if Ascend can figure out what it is our tech support
>can get some rest. :)
The i branch does not have support for Lucent based K56Flex modems - and is
therefore not K56Flex 1.1 compatible. To add this compatibility, the V.8bis
tone was added in the start of the negotiations (the short "beep"). That is
*required* to interoperate with Lucent (any non_Rockwell) K56 modems, so I'm
afraid that this is the correct sequence rather than what is in the current
"i" branch.
There is a slight modification to it in the latest 5.0Ap20 code compared to
the 5.0Ap16 code - Rockwell called it the "V.8bis billing delay fix"....I
suspect the silent time has been shortened after the tone, before the normal
training sequence starts.
Kevin
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