visual-c-sharp-crm-sdk-change-calling-user-GUID
service.CallerIdValue = new CallerId();
service.CallerIdValue.CallerGuid = new Guid("00000000-0000-0000-0000-000000000000");
visual-c-sharp-crm-sdk-change-calling-user-GUID
service.CallerIdValue = new CallerId();
service.CallerIdValue.CallerGuid = new Guid("00000000-0000-0000-0000-000000000000");