Contents

Introduction

Prerequisites

Requirements

Components Used

Background

Configure

Call Studio Application - DialogflowCX Element with No Resource and Error Handling

No Resource Handling

Error Handling

Verify

Troubleshoot

Related Information

Introduction

This document describes how to configure Contact Center Enterprise (CCE) Virtual Agent Voice (VAV) graceful call handling for Call Studio DialogflowCX and VAV elements.

Contributed by Ramiro Amaya Cisco TAC Engineer, Anjum Jeelani, Adithya Udupa, and Amit Agnihotri, Cisco Engineers.

Prerequisites

Requirements

Cisco recommends that you have knowledge of these topics:

- Cisco Unified Contact Center Enterprise  (UCCE) Release 12.6.2

- Cisco Package Contact Center Enterprise  (PCCE) Release 12.6.2

- Customer Voice Portal (CVP)

- Virtual Voice Browser (VVB)

- Google Dialogflow CX

- Control Hub

Components Used

The information in this document is based on these software versions:

- PCCE Release 12.6.2

- CVP 12.6.2

- Cloud Connect 12.6.2

- Google Dialogflow CX

- Webex Control Hub

The information in this document was created from the devices in a specific lab environment. All of the devices used in this document started with a cleared (default) configuration. If your network is live, ensure that you understand the potential impact of any command.

Background

This document describes how to gracefully handle the call flow when resources are not available or any gRPC errors integrated with Google Contact Center Artificial Intelligence (CCAI) Dialogflow Customer Experience version (CX) using Cisco Call Studio DialogflowCX/VAV Element. This feature is supported in CVP Release 12.6.2 ES09 and VVB Release 12.6.2 ES03.

For information on how to configure a Virtual Agent Voice solution review this document: Configure CCE Virtual Agent Voice Cloud Based Connector

You can download a Call Studio VAV application and Cisco Dialogflow CX agent sample (exported_agent_Travel_ flight information_VAV.blob) from: VAV Call Studio Application and Dialogflow CX Agent Sample

Configure

Call Studio Application - DialogflowCX  Element with No Resource and Error Handling

No Resource Handling

Step 1. On your CVP Call studio application, open the CX application, expand it and double-click the app.callflow.

Step 2. Click the DialogflowCX element and select the Events tab. If not added, add an event with event type as VXML Event and select error.noresource in event list. With this a new separate flow can be created for any "noresource" error to handle the call flow gracefully for no resource scenarios.

VXML Event-noresource: This helps when resources are not available to process in these scenarios.

Scenario #

Error Scenario

Error Message

Error Type

Component

Impacted

1

Speech Server (SS) down

Speech Server is not Reachable"

NO_RESOURCE

Speech server

2

Whenever a client is not

created for SpeechServer

"Error while creating Speech Server GRPC client"

NO_RESOURCE

VVB

3

Cloud Connect is down

(unable to set token)

"CloudConnect Message:Service Account auth is not available for the Cloud connect config.

NO_RESOURCE

Cloud Connect

4

Config ID is wrong/  invalid

"FAILED_PRECONDITION: Service Account auth is not available for the Cloud connect config"

NO_RESOURCE

Configuration

issue

5

No response after a specified wait time for a welcome prompt

NO_RESOURCE,No response received from UH, after waiting for 15000ms

NO_RESOURCE

Network / Cloud services

6

VXML server down

M IVR-SS_VB-7-UNK:[CALLID=1-16538] Log: **CVP**callid=C76D75B20A0A0A3901AC6A3210000184**VAVHybridLoad**ERROR: 10.10.10.20, CVP VXML Server is unavailable. Call is dropped.

NA

VXML Server

Note: You can implement he same configurations steps for the VAV element.

Error Handling

gRPC Error Propagation Flow Diagram

For more information on gRPC errors type: gRPC Core: Status codes and their use in gRPC

Verify

There is currently no verification procedure available for this configuration.

Troubleshoot

There is currently no troubleshooting procedure available for this configuration.

Related Information

- UCCE Features guide 12.6.2

- Provision Google CCAI Hybrid Services with CCE

- Configure CCE Virtual Agent Voice Cloud Based Connector

- Call Studio VAV Sample Application and Dialogflow CX Agent Sample

- Google - Dialogflow CX Introduction

- Google - Use Pre-built agent template to create a Dialogflow CX agent

- Google - Introduction to pages and transitions in Dialogflow CX

- Google - Create a single-flow conversational agent

- VXML Element Specification Guide

- Technical Support & Documentation - Cisco Systems