Hello,
Sometimes, when invoking SSC, the following exception is thrown:

2018-07-25 10:02:35,961 ERROR c.r.l.Log [ServiceProxy-3]
ch.ecma.csta.errors.InvalidCalledDeviceIDException: null
at sun.reflect.GeneratedConstructorAccessor164.newInstance(Unknown Source) ~[?:?]
at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(Unknown Source) ~[?:1.8.0_112]
at java.lang.reflect.Constructor.newInstance(Unknown Source) ~[?:1.8.0_112]
at java.lang.Class.newInstance(Unknown Source) ~[?:1.8.0_112]
at com.avaya.mvcs.proxy.ClientNegAckToException.convertErrorToException(ClientNegAckToException.java:130) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]
at com.avaya.mvcs.proxy.XmlGatewayClient.handleRequest(XmlGatewayClient.java:250) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]
at com.avaya.mvcs.proxy.Pipeline.handleRequest(Pipeline.java:346) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]
at com.avaya.mvcs.proxy.ClientProxy.routeRequest(ClientProxy.java:627) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]
at com.avaya.mvap.svcproxy.ServiceProxy.marshallRequest(ServiceProxy.java:131) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]
at com.avaya.mvap.svcproxy.CallControlServicesProxy.singleStepConferenceCall(CallControlServicesProxy.java:372) ~[proxy.jar:"6.3.1.0.175 September 12 2013"]

What could be the reason for that?
Thanks.

I think your best plan is to enable the TSAPI traces on AE Services and use the CSTA & G3 traces to:

1. Verify that the application is sending the correct data in the SSC
2. Make sure that nothing has happened in the call that would make the SSC invalid (e.g. a phone dropped from the call).
3. Get the actual TSAPI/ASAI error code returned from Communication Manager. You should be able to get a better picture by looking this error up in the "TSAPI for Avaya Communication Manager Programmer’s Reference". You can download this from the Devconnect website or find it using Google.

You can get information on collecting TSAPI traces in the Devconnect Product FAQ "What is the procedure for enabling and accessing the AE Services logs for TSAPI (trace, tracing, g3trace, csta_trace)?". It is in the "FAQ: AE Services TSAPI -> General" section.

Martin

Sorry, could you provide the link to the FAQ: AE Services TSAPI....? Or please navigate how to get there.
Thanks a lot.

Try here:

https://www.devconnectprogram.com/site/global/products_resources/avaya_aura_application_enablement_services/support/faq/tsapi/index.gsp#10