TAPI 2.1

I am looking for the infomation on TAPI 2.1 programming. I have the following questions on that.

1) Why is TAPI 2.1 Client Server Model?  What does it mean to implement TAPI 2.1 Client and Server TSPI?  Where can I locate such information?
akhilaAsked:
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dcooper080498Connect With a Mentor Commented:
TAPI 2.1 is an update for TAPI 2.0 on NT 4.0 and TAPI 1.4 on WIN95. The main updated functionality over TAPI 2.0 is improvements to Client Server support.  TAPI 2.1 will support TAPI 2.0 service providers and TAPI 1.4 or 2.0 applications, so a Client Server model application or service provider is not required.  It is unclear from your question whether you are implementing a service provider ( basically an interface between some type of hardware card or PBX and the TAPI DLL )or an application that is going to take advantage of TAPI services. If you could say what you are doing I could maybe be more specific.  The documentation for TAPI/TSPI is in the Platform SDK under the Network and Distributed Service section BTW.
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trestanCommented:
Why not go to MS and make a search on TAPI 2.1?
http://search.microsoft.com/default.asp
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akhilaAuthor Commented:
Trestan,
   I searched through all of MS and couldnot find the information what exactly I require.
I need to know why the TAPI server is required for 2.1 version. Can the client run without the server and if so on what situations?

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akhilaAuthor Commented:
Dcooper,
    I am developing a TSPI for my own hardware. The applications are ready but I have to make them TAPI compatible.
If u could explain some more on this, please do.
Thank u for ur above answer.

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dcooper080498Commented:
You're welcome.

Writing a TSPI is not a light undertaking. There is a company that has some C++ classes that might be helpful, http://www.julmar.com/.  I haven't used their stuff, but it might save you some time.  Depending on your hardware, ie a telephony card vs. a PBX for instance, you may also be looking at creating a media interface such as a WAV driver or a DirectSound filter. Of course your TAPI service provider (TSP)doesn't have to support the entire TAPI insterface, just the functions that make sense for your type of telephony hardware.  Be aware that TAPI 3.0 is on the horizon and due out with NT 5.0.  TAPI 3.0 is a COM wrapper of the TAPI API.  Your 2.0 or 2.1 TSP should be able to work with it without changes.

Some other resourses:

Bruce Pennypacker's TAPI FAQ
http://members.tripod.com/~tapifaq/   

Grant Schenck's TAPI FAQ
http://ourworld.compuserve.com/homepages/schenck/tapifaq.txt

Microsoft's TAPI news group
microsoft.public.win32.programmer.tapi
(which you can search at www.dejanews.com)

If you want any specific advice, give me an idea of the type of telephony hardware you are working with.
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akhilaAuthor Commented:
Thank U very much Dcooper.
I'll get in touch in with you for some more doubts. But do u have a personal mail access to contact u later?

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dcooper080498Commented:
Sure, dcooper@fvt.com.
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