NowVoice API - iOS

concept brazil Updated Sep 10, 2026 1 min read NowVoiceiOSAPI.md

NowVoice is a top-level global API for embedding voice agent sessions in iOS applications.

Use NowVoice to create a NowVoiceService for a given ServiceNow instance, then use that service to start and manage voice agent sessions.

For more information about configuring NowVoice, including prerequisites and call order, see Embed an AI voice agent with NowVoice.

Parent Topic:Mobile SDK - iOS

NowVoice - makeVoiceService(instanceUrl: URL) async throws

Creates an instance of NowVoiceService for the specified ServiceNow instance.

Note: Call this function from an async context, after calling NowSDK.configure(with:). This function fetches instance settings over the network; call it when launching a voice session, not at app startup.

This function validates that voice is enabled on the ServiceNow instance and retrieves available endpoint configurations. It throws a NowServiceError if setup fails.

Case	Description
`.sdkNotConfigured`	NowSDK.configure(with:) was not called before creating the service.
`.serviceConfigurationInvalid`	The provided instanceUrl is malformed or can't be used to build a service configuration.
`.serviceSettingsRetrievalFailed(SettingsError)`	A network or authentication error occurred while fetching instance settings.
`.serviceSettingsNotFound`	The instance does not have `sdk.voice` settings configured.
`.serviceSettingsInvalid`	The `sdk.voice.enabled` key is missing from the instance settings.
`.serviceDisabled`	Voice is turned off on the instance (`sdk.voice.enabled` is `false`).

Name	Type	Description
instanceUrl	URL	URL of the ServiceNow instance, such as `https://instancename.service-now.com`.

Type	Description
NowVoiceService	An initialized NowVoiceService ready to start voice sessions.

The following code example shows how to create an instance of NowVoiceService.

JavaScript

import NowVoice
let instanceUrl = URL(string: "https://your-instance.service-now.com")!
do {    let voiceService = try await NowVoice.makeVoiceService(instanceUrl: instanceUrl)} catch {    // Handle NowServiceError    print("Failed to create voice service: \(error)")}

65 lines · 3.5 KB Wrap lines

---
title: NowVoice API - iOS
description: NowVoice is a top-level global API for embedding voice agent sessions in iOS applications.Creates an instance of NowVoiceService for the specified ServiceNow instance.
locale: en-US
canonical_url: https://www.servicenow.com/docs/r/api-reference/cllent-mobile-api-reference/NowVoiceiOSAPI.html
release: brazil
product: Cllent Mobile API Reference
classification: cllent-mobile-api-reference
topic_type: concept
last_updated: "2026-09-10"
reading_time_minutes: 1
breadcrumb: [Mobile SDK - iOS, Mobile SDK API reference, API reference, API implementation and reference]
---

# NowVoice API- iOS

NowVoice is a top-level global API for embedding voice agent sessions in iOS applications.

Use NowVoice to create a [NowVoiceService](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/cllent-mobile-api-reference/NowVoiceServiceiOSAPI.md) for a given ServiceNow instance, then use that service to start and manage voice agent sessions.

For more information about configuring NowVoice, including prerequisites and call order, see [Embed an AI voice agent with NowVoice](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/developer-guides/mobsdk-ios-nowvoice.md).

**Parent Topic:**[Mobile SDK - iOS](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/cllent-mobile-api-reference/MobileSDKiOSAPI.md)

## NowVoice - makeVoiceService\(instanceUrl: URL\) async throws

Creates an instance of NowVoiceService for the specified ServiceNow instance.

**Note:** Call this function from an async context, after calling [NowSDK.configure\(with:\)](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/cllent-mobile-api-reference/NowSDKAPIiOS.md). This function fetches instance settings over the network; call it when launching a voice session, not at app startup.

This function validates that voice is enabled on the ServiceNow instance and retrieves available endpoint configurations. It throws a `NowServiceError` if setup fails.

|Case|Description|
|----|-----------|
|`.sdkNotConfigured`|NowSDK.configure\(with:\) was not called before creating the service.|
|`.serviceConfigurationInvalid`|The provided **instanceUrl** is malformed or can't be used to build a service configuration.|
|`.serviceSettingsRetrievalFailed(SettingsError)`|A network or authentication error occurred while fetching instance settings.|
|`.serviceSettingsNotFound`|The instance does not have `sdk.voice` settings configured.|
|`.serviceSettingsInvalid`|The `sdk.voice.enabled` key is missing from the instance settings.|
|`.serviceDisabled`|Voice is turned off on the instance \(`sdk.voice.enabled` is `false`\).|

|Name|Type|Description|
|----|----|-----------|
|instanceUrl|URL|URL of the ServiceNow instance, such as `https://instancename.service-now.com`.|

|Type|Description|
|----|-----------|
|[NowVoiceService](https://raw.githubusercontent.com/ServiceNow/ServiceNowDocs/brazil/markdown/api-reference/cllent-mobile-api-reference/NowVoiceServiceiOSAPI.md)|An initialized NowVoiceService ready to start voice sessions.|

The following code example shows how to create an instance of NowVoiceService.

```
import NowVoice

let instanceUrl = URL(string: "https://your-instance.service-now.com")!

do {
    let voiceService = try await NowVoice.makeVoiceService(instanceUrl: instanceUrl)
} catch {
    // Handle NowServiceError
    print("Failed to create voice service: \(error)")
}
```