Maybe the log of JabraDirect helps:
09.08.2019 12:02:25: Starting SoftphoneIntegrations... (P:11908 T:2424)
09.08.2019 12:02:29: Got console input: { "type": "Start" } (P:11908 T:2424)
09.08.2019 12:02:30: Start (P:11908 T:2424)
09.08.2019 12:02:30: AVAYAIP is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: AVAYAONEX : Searching the registry (P:11908 T:2424)
09.08.2019 12:02:30: AVAYAONEX HKEY_LOCAL_MACHINE\Software\Avaya not found (P:11908 T:2424)
09.08.2019 12:02:30: AVAYAONEXV3: SoftphoneAdaptor.IsSoftphoneInstalled - Searching the registry (P:11908 T:2424)
09.08.2019 12:02:30: AVAYAONEXV3: SoftphoneAdaptor.IsSoftphoneInstalled - Avaya Equinox not found (P:11908 T:2424)
09.08.2019 12:02:30: BROADSOFT UC ONE - SoftphoneAdaptor is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: BROADSOFT UC ONE - SoftphoneAdaptor.SoftphoneAdaptor constructor (P:11908 T:2424)
09.08.2019 12:02:30: CISCOJABBER GetRepairRequired() (P:11908 T:2424)
09.08.2019 12:02:30: CISCOJABBER Check if a Direct repair is required. No plugin found. (P:11908 T:2424)
09.08.2019 12:02:30: CISCOJABBER Repair is not required (P:11908 T:2424)
09.08.2019 12:02:30: CISCOUC is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: CISCOWEBEXCONNECT is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: COUNTERPATHBRIA Did not find any Counterpath (Bria 4, X-Lite or branded) softphones (P:11908 T:2424)
09.08.2019 12:02:30: IBM SAMETIME is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: LYNC is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: NECSP350 is NOT installed (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL Check for registry key: HKEY_LOCAL_MACHINE\Software\Shoreline Communications\InstallState\Products\Shoreware Client (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL Check for registry key: HKEY_LOCAL_MACHINE\Software\Shoreline Communications\InstallState\Products\ShoreTel Connect (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL Check for registry key: HKEY_LOCAL_MACHINE\Software\ShoreTel\ShoreTel Connect (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL Check for registry key: HKEY_CURRENT_USER\Software\Shoreline Teleworks\Shoreware Client (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL Check for registry key: HKEY_CURRENT_USER\Software\Shoreline Teleworks\ShoreTel Client (P:11908 T:2424)
09.08.2019 12:02:30: SHORETEL is not installed (P:11908 T:2424)
09.08.2019 12:02:30: SdkIntegration Id: faa29e91-677a-4441-9551-ee944b0999ef: Connected to client d6b42896-e65b-4ec1-a037-27c65e8cfde1 (P:11908 T:9452)
09.08.2019 12:02:30: SdkIntegration Id: 7fcc5b6d-ec2a-463f-aa10-fed98532ef0e: Connected to client 3d5950ae-111a-45be-96b3-d9e4606ca793 (P:11908 T:7224)
09.08.2019 12:02:30: SdkIntegration Id: faa29e91-677a-4441-9551-ee944b0999ef: Shared softphone info reference count 4 (P:11908 T:9452)
09.08.2019 12:02:30: SdkIntegration Id: 7fcc5b6d-ec2a-463f-aa10-fed98532ef0e: Shared softphone info reference count 4 (P:11908 T:7224)
09.08.2019 12:02:30: SdkIntegration Id: faa29e91-677a-4441-9551-ee944b0999ef: Got an SharedInfoUpdated (P:11908 T:9452)
09.08.2019 12:02:30: SdkIntegration Id: faa29e91-677a-4441-9551-ee944b0999ef: ReferenceCount = 4 (P:11908 T:9452)
09.08.2019 12:02:30: SdkIntegration Id: 7fcc5b6d-ec2a-463f-aa10-fed98532ef0e: Got an SharedInfoUpdated (P:11908 T:7224)
09.08.2019 12:02:30: SdkIntegration Id: 7fcc5b6d-ec2a-463f-aa10-fed98532ef0e: ReferenceCount = 4 (P:11908 T:7224)
09.08.2019 12:02:30: Writing {"type":"Start","status":"Done"} to console (P:11908 T:2424)
09.08.2019 12:02:30: Start done (P:11908 T:2424)
09.08.2019 12:02:30: Writing {"type":"StatusUpdateEvent","softphoneIntegrationId":"7fcc5b6d-ec2a-463f-aa10-fed98532ef0e","softphoneName":"3CXPhone","connected":false,"information":""} to console (P:11908 T:7224)
09.08.2019 12:02:30: Writing {"type":"StatusUpdateEvent","softphoneIntegrationId":"faa29e91-677a-4441-9551-ee944b0999ef","softphoneName":"Google Chrome Browser","connected":true,"information":""} to console (P:11908 T:9452)
09.08.2019 12:02:30: Got console input: { "type": "RequestActiveSoftphoneIntegrations" } (P:11908 T:2424)
09.08.2019 12:02:30: Writing {"type":"ActiveSoftphoneIntegrationsResponse","softphoneIntegrations":[{"name":"Google Chrome Browser","id":"faa29e91-677a-4441-9551-ee944b0999ef","microsoft":false},{"name":"3CXPhone","id":"7fcc5b6d-ec2a-463f-aa10-fed98532ef0e","microsoft":false}]} to console (P:11908 T:2424)
09.08.2019 12:02:30: Got console input: { "type": "RequestActiveSoftphoneIntegrations" } (P:11908 T:2424)
09.08.2019 12:02:30: Writing {"type":"ActiveSoftphoneIntegrationsResponse","softphoneIntegrations":[{"name":"Google Chrome Browser","id":"faa29e91-677a-4441-9551-ee944b0999ef","microsoft":false},{"name":"3CXPhone","id":"7fcc5b6d-ec2a-463f-aa10-fed98532ef0e","microsoft":false}]} to console (P:11908 T:2424)
09.08.2019 12:02:30: Got console input: { "type": "RequestActiveSoftphoneIntegrations" } (P:11908 T:2424)
09.08.2019 12:02:30: Writing {"type":"ActiveSoftphoneIntegrationsResponse","softphoneIntegrations":[{"name":"Google Chrome Browser","id":"faa29e91-677a-4441-9551-ee944b0999ef","microsoft":false},{"name":"3CXPhone","id":"7fcc5b6d-ec2a-463f-aa10-fed98532ef0e","microsoft":false}]} to console (P:11908 T:2424)
09.08.2019 12:02:30: Got console input: { "type": "SetPresence", "enabled": true } (P:11908 T:2424)
09.08.2019 12:02:30: Got console input: { "type": "SetPreferredSoftphone", "id": "faa29e91-677a-4441-9551-ee944b0999ef" } (P:11908 T:2424)
Hope this helps to get this issues solved...