[IOS] If app is in killed state, How to accept or reject incoming call in IOS?

[himanshupkarak]

Issue

Accept and Reject buttons are not working, If received an incoming call on killed state in IOS

Pre-submission Checklist

• [ ] I have verified that the issue occurs with the latest release and is not marked as a known issue in the CHANGELOG.md.
• [ ] I reviewed the Common Issues and open GitHub issues and verified that this report represents a potentially new issue.
• [ ] I am not sharing any Personally Identifiable Information (PII) or sensitive account information (API keys, credentials, etc.) when reporting this issue.

Description

accept and reject not working for killed state incoming call in IOS.

Reproduction Steps

Expected Behavior

User can accept or reject incoming call from IOS native UI screen.

Actual Behavior

can not accept or reject

Reproduction Frequency

In my case, It's 100%

Screenshots

Software and Device Information

Please complete the following information.

• Device: [Phone 14]
• OS: [iOS 17]
• React version: [18.2.0]
• React Native version: [0.72.10]
• Node version: [18.20.3]
• npm version: [10.7.0]

Additional Context

[mhuynh5757]

Hi @himanshupkarak are you experiencing crashes or are you not seeing UI pop up when attempting to receive an incoming call? Are you able to receive incoming calls when the app is not in the killed state? If you experiencing crashes, please provide Xcode logs. Finally, can you confirm that you're using a real iOS device, and not the iOS simulator? The Twilio Voice SDKs will not work on iOS simulators.

[himanshupkarak]

HI @mhuynh5757 i am not experiencing any crash on incoming call with any state (foreground, background or killed) not even after accepting or rejecting call.

the issue is (only for killed state), when i click on accept (from IOS native UI) my call decline if i click on reject (2 times), my call also decline

*here are some screenshots to understand more.

one more thing,

-> voice.addListener(Voice.Event.CallInvite, handlePendingCallInvite);

• for foreground state and background state above addListener works perfectly fine. 👍🏻 but for killed state, when clicked on accept button and my app opens, above addListener is not working ❌ so i am not able to see any console.log and not able to run below Listner.

-> callInvite.on(CallInvite.Event.Accepted, async (res) => { console.log('check response', res) })

---

• I think, May be i missing something in appDelegate.mm file.

please help!!

[himanshupkarak]

yes, I am using a real iOS device

[mhuynh5757]

Thanks for the update @himanshupkarak. When CallInvites are accepted through the native UI and the JS runtime is not started, for example when your app is backgrounded or closed, you are indeed correct that the callInvite.on(CallInvite.Event.Accepted, ...) event will not fire. Instead, on JS runtime start, you should invoke voice.getCalls() to get all ongoing calls. Please see how our test app does this: https://github.com/twilio/twilio-voice-react-native/blob/main/test/app/src/hook.ts#L479