Plantronics Developer Connection - Softphone Integration Windows SDK

System.InvalidCastException: Specified cast is not valid.

amitkumar — Tue, 29 Nov 2022 09:16:23 +0000

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Hi team, this is Amit. I have poly v5200 series headset and getting below exception while run sample code (found on plantronic form). System.InvalidCastException: Specified cast is not valid. at Interop.Plantronics.COMSessionClass.GetActiveDevice() at PLTCSharpSample.Program.AttachDevice()

Plantronics HUB all version certificate error

Alex Ustinov — Mon, 07 Nov 2022 17:27:56 +0000

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Softphone Integration Windows SDK

Hi team, This is Alex from RingCenrtal. We faced with sertificate authority error on chrome using latest version of HUB SDK ver: 3.24.2 Browser: Google Chrome Error: net::ERR_CERT_AUTHORITY_INVALID

Plantronics HUB all version certificate error

Alex Ustinov — Mon, 07 Nov 2022 17:27:37 +0000

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Softphone Integration Windows SDK

Hi team, This is Alex from RingCenrtal. We faced with sertificate authority error on chrome using latest version of HUB

Windows SDK | Version 3.24.2 | Build 36336 (3.24.53524.36336) needs the admin rights

omarfro — Tue, 12 Apr 2022 11:22:25 +0000

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Softphone Integration Windows SDK

Hi, We are using Windows SDK installation in our app (we have per user/machine versions), the users have an issue with installing the SDK with admin rights on per-user versions, so is it possible to provide us with a per-user setup or setup without admin rights? Thanks in advance,

Disabling audio channel tone via API

arq606 — Tue, 11 Jan 2022 10:45:51 +0000

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Softphone Integration Windows SDK

I am testing possibility to replace current Savi W745 models with Savi 8240. We are controlling audio channel open/close in our code and we are also playing ring tones and other audio alerts from our code. Savi 8240 plays a tone when the channel is opened. This can be disabled with the Plantronics Hub UI (Settings -> General -> Audio Chnanel Tone) but we are not using it as we are using the Minimal Hub Runtime & COM Service .NET interop. Is there a way to change this setting via the API or is there some other workaround?

How do I change audio link to remain always active without Plantronics Hub UI

arq606 — Mon, 10 Jan 2022 11:19:15 +0000

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Softphone Integration Windows SDK

We have issues with the call answering delay from the talk button with Savi W745 headsets. I was testing the solution based on proposed solution in the FAQ for "My wireless headset events are slow/delayed." and it looks promising. Based on my testing it works better when the full line open/close control is moved to our application. For this I need to set "Headset to PC radio link" to be always active. We are using the COM Service .NET Interop with the Minimal Hub Runtime installer. Is there a way to change this setting via the API? Or some other way to change the setting without the Plantronics Hub UI?

WebRTC Headset call control

Neville New Zealand — Wed, 08 Sep 2021 05:04:59 +0000

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Softphone Integration Windows SDK

We have Avaya ip office with Avaya xima contact centre with a WebRTC interface we are unable to get Poly headest call control functioning and beleive we may need besoke software to achieve this can anyone avise where we can see assistance for such development

Using the "Plantronics Status Indicator" with the SDK (COM DLL)

globaliptel — Tue, 06 Jul 2021 13:18:04 +0000

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Softphone Integration Windows SDK

Does the SDK integration via PlantronicsCOM.dll support the "Plantronics Status Indicator" ? Our new application uses the REST interface and it works as expected. A previous implementation with COM on the other hand does not work. There is nothing to find in the SDK documentation about this. Does anyone have a TIP on this? Michael

64 bit native SDK

roellgen@globaliptel.com — Wed, 17 Feb 2021 14:19:23 +0000

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Softphone Integration Windows SDK

Hi, I'm trying to use your native SDK in a new softphone application. First the compiler reported massive collisions with structs defined in an SDK by some other provider and second InitSpokesRuntime() cannot be found because it's apparently a 32 bit SDK only (https://developer.plantronics.com/3g-native-api-x64). We're supposed to roll out the product in the next few weeks for Windows and some time later for Linux. The product is 64 bit, native code, 10 years in the making and "glue solutions" don't work here as our customers are professionals that have to do first and second level support. What are the options?

Multiple softphones simultaneously

tim.gubener — Mon, 26 Oct 2020 17:30:40 +0000

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Softphone Integration Windows SDK

Hello, we currently use two softphones, primarily "estos ProCall" and "Microsoft Teams". As the builtin headset integration in ProCall is unreliable, we decided to disable it and whip up our own integration by utilizing the Plantronics COM API (.NET C#). We use the Plantronics Savi 8220 headset and basically want to enable our users to accept and end calls via the headset button (i guess it is called "smart button"). Both integrations (ProCall and Teams) work just fine as long as the two softphones are used consecutively, but behave wrong (?) in the following scenario:

Enter a Microsoft Teams Meeting
Receive a call in estos ProCall (Integration action: Announce incoming call to API with a unique call id)
Accept the call via headset button (Integration action: Answer call to API with the unique call id)
End the call via headset button (Integration action: Terminate call to API with the unique call id)
Now the RF link to the headset is lost but Teams is still active

As you can see, we'd like to use two or more softphones in parallel. By looking at the API it seems that such a scenario shouldn't cause trouble, as each softphone registers a session in which it registers calls and their states and therefore can be handled by the SDK. I envision the SDK to put all other active calls on hold when a new incoming call is accepted or at least ensure that the RF link is not dropped as long there are active calls (on hold). I tried realizing that behaviour in our integration by manually checking for all active calls via the CallManager when a call in our App is terminated and attempting to reestablish the RF link if there are any calls other than the one that is terminated, but there weren't any. I suppose the CallManager to restrict my view to only our calls specific to the session. Either that or Microsoft Teams does not create a call. I would highly appreciate advise on how to make our integration suitable for multi softphone purposes. Thanks! Edit: To eliminate any misconception, i've already developed the integration with success (the documentation and samples made that quite easy), but i don't know how to utilize the SDK the right manner to support scenarios like the one described above.