Need Help Setting up Serial Provider (xtapi.inf)

I have been trying to set up xTAPI for a serial provider but am unable to
fill out the xtapi.inf file in a manner that enables xtapi to work. This is
because, in following the document "Setting up XTAPI," I have discovered
that my modem's inf file does not match up to what that help document
describes. All my questions on this, and the areas of confusion are below.
(I am also more than happy to put everything I learn here into a user's
guide for the XTAPI Sourceforge site, assuming I get it to work ;) )

NOTE: I have included pretty much every key just to be sure I'm
interpreting it properly.

NAME
-------------

I believe this chould be (in my case), "COM3". However, I only find "COM3"
in one spot in my modem's file:
 [Winacpci_AddReg]
 HKLM,SYSTEM\CurrentControlSet\Services\Winacpci,SymbolicLink,,"COM3"

I'm pretty sure that means it's on COM3, but just wanted to be sure because
that's a regedit command and there's nothing else to mention it.

ADDRESSES
-------------

What exactly do I put here? It's not clear in the help document what this
refers to. This is the only modem on this computer, and I'm only going to
accept one phone call at a time for right now - does that mean I put 0? In
other words, this "key" has no relevance to my computer's inf file (called
WinInf in the help document)?

CODEC
-------------

OK, here's where I get a HUGE divergence and confusion sets in. There are
SIX entries in my WinInf for "VoiceDialNumberSetup." Which one do I use?
The six:

  HKR, VoiceDialNumberSetup, 1, "at+fclass=8<cr>"
  HKR, VoiceDialNumberSetup, 2, "at+vls=0<cr>"
  HKR, VoiceDialNumberSetup, 3, "at+vrn=0<cr>"
  HKR, VoiceDialNumberSetup, 4, "at+vtd=10<cr>"
  HKR, VoiceDialNumberSetup, 5, "at+vsm=130,8000,0,0<cr>"
  HKR, VoiceDialNumberSetup, 6, "at+vit=6<cr>"

Also, do I include the "<cr>"? I assume that's "carriage-return"? Does
XTAPI/JTAPI need "\n" instead?

INIT
-------------

Again, there are multiple Init strings, 2 to be exact. Which do I use?
  HKR, Init, 1,, "AT<cr>"
  HKR, Init, 1,, "AT&FE0V1S0=0C1&D2+MR=2;+DR=1;+ER=1;W0<cr>"

VOICESETUP,VOICESTART,ANSWER,ANALOGSOURCE,ANALOGDESTINATION
------------------------------------------------------------

The user's guide says to look under "VoiceAnswer" for all of these, but is
not clear how to decide which entry fits which. I have 5 entries, which is
VoiceSetup, which VoiceStart, etc?

  HKR, VoiceAnswer, 1, "at+fclass=8<cr>"
  HKR, VoiceAnswer, 2, "at+vtd=10<cr>"
  HKR, VoiceAnswer, 3, "at+vsm=130,8000,0,0<cr>"
  HKR, VoiceAnswer, 4, "at+vit=6<cr>"
  HKR, VoiceAnswer, 5, "at+vls=1<cr>"

DIAL
-------------

What should this be? All my WinInf file has is "DialPrefix" which it says
is "D". I'm assuming this is just whatever you dial to get out of the
building, plus "1"?

ONHOOK
-------------

Mine has: Hangup, 1,, "ATH<cr>", I'm assuming that's it, right?

DIGITDURATION
----------------

I can't find this anywhere. I'm just guessing, but is the line (see above)
in "VoiceDialNumberSetup" which mentions "vtd" the right one here?

  HKR, VoiceDialNumberSetup, 4, "at+vtd=10<cr>"

So that would make my DigitDuration 100ms, right?

ENCODING
-----------------

This is nowhere to be found in my WinInf file. I can't even find any of the
algorithms (X_G721, X_IMA, X_PCM_U8, etc) - nothing. What would I look for
to find out which encoding it uses? Is there some other
(numerical/hexidecimal?) representation of this?

GENERAL
-----------------
One last general question: I see the user guide only
lists "name," "addresses" and "codec" as required. Does this mean it should
work (for the basic example) if that's all I filled out? Is XTAPI more
likely to work if I fill in all the settings?

Thanks again for any help canyone can give!

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