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Anyone else using 3COM's TAPI Service Provider for the NBX?

This has been a long running problem. We use the 3COM NBX v3000. We also use the Desktop Call Assistant (actually, because of this problem with the TSP, I've written my own version of the Call Assistant that will still display a directory even if communication with the server is down).

We initially installed the TSP and DCA on everyones PC. After a while we noticed a pattern. The TSP would crash, brining down many vital services with it. After months of trying different solutions, none of which worked, we built a bare bones w2k3 server and installed the TSP on there using Microsofts remote TAPI client/server architecture. This works pretty well, but the TSP sometimes quits working, making us uninstall and reinstall.

This server doesn't have any anti-virus or other software. It is simply W2k3 with the tsp installed.

Right now, I am just looking for anyone else who uses 3coms TSP. Whether it works for you or not. Thanks in advance!
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srepphan
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srepphan
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jfradyCommented:
I have used the TSP with minimal issues.  Have also used the Microsoft remote TSP with NBX as well.  Only issue I have ever run into is when the number of TSP users exceeded the max the V3000 could accept without the remote TSP component.  This is due to the limited number of TCP pipes that can be active at a time.  I worked for an NBX reseller for a number of years and installed at least 15-20 systems that used the call assistant or TSP in some fashion heavily with minimal issues.
Have you contacted your dealer or 3Com tech support?
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srepphanAuthor Commented:
Yes I have. We currently do not have a service contract and when we did, even the developers could not identify the issue. How it can have all of these problems on a bare PC with no other software installed just floors me.
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jfradyCommented:
It's interesting that the remote tapi scenario exhibited different symptoms.  The TSP is the same whether installed on a server or on PC's.  When you say services crashed - do you mean on the PC with the TSP installed or on the NBX itself?

I have also installed and used the TSP with the BrightArrow applications as well as ACT! and Outlook.  It seems like you are indicating the problem is with the TSP and not the DCA application.  Out of curiosity have you tried the TSP along with a different application like Outlook or just the Windows phone dialer?
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srepphanAuthor Commented:
It is the TSP. It brings down the services that run in the same svchost.exe process. I have moved it into it's own host process and it still crashes. The TSP exhibits these symptoms regardless of the application that is using TAPI. This has been a problem for a few years now. I am going to next install the TSP on yet another set of hardware and see what happens. If that doesn't do it, I may be reverse engineering it.

Note that I have tried all the different versions of R5 and R6 TSP.
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