To enable VoIP calling through your phone's 3G/4G connection, choose Always Use VoIP.
Selecting Use VoIP only on Wi-Fi will disable VoIP calling using your phone's 3G/4G connection. 
 

Android	iOS
• Always Use VoIP When there is no Wi-Fi connectivity, calls will be connected using cellular data (3G/4G).	• Always Use VoIP When Wi-Fi connectivity is poor, incoming and outgoing calls will be connected using cellular data (3G/4G).
• Use VoIP only on Wi-Fi When there is no Wi-Fi connectivity, outgoing calls will be connected using your cellular voice minutes (RingOut).	• Use VoIP only on Wi-Fi When Wi-Fi connectivity is poor, outgoing calls will be connected using your cellular voice minutes (RingOut). To receive incoming calls when not in Wi-Fi, set up call forwarding to your mobile phone.

NOTE: When VoIP is turned off, outgoing calls will be connected to you through your RingOut number.

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Incoming VoIP Calling

• Things to know about Inbound VoIP Calling
• How to Enable / Disable Inbound VoIP Calling

Things to know about Inbound VoIP Calling

• Inbound VoIP calling is turned ON by default on Wi-Fi connections.

• On iOS (version 8.0 and up), incoming VoIP calls to the RingCentral mobile app will come in regardless of the app running or not. This is the case even if the mobile app is manually killed via Task Manager, or automatically put to sleep by the OS.

On iOS, even when the RingCentral mobile app is displayed in the Task Manager this does not necessarily mean that the app is running. The OS controls if and when the apps run and may put the app to sleep at anytime. Your RingCentral mobile app will wake up so that you can receive the incoming VoIP call even if your app is not running. If you want to block incoming VoIP Calls temporarily, please turn off the VoIP Calling setting in the mobile app.

• Incoming Call Notifications to the RingCentral desktop app and smartphones should be enabled for the inbound VoIP calling to work. This is set inside the device's settings.

• The RingCentral desktop app and mobile app get the incoming call notification simultaneously.

• Voice quality on 3G/4G LTE depends on network data quality E.g., if a user moves away from good data coverage area to a bad data coverage area (e.g. driving in a car), VoIP calls through 3G/4G may have voice quality issues.

• The RingCentral mobile app uses your phone's native ringtone and has support for vibrate mode.

• Depending on the device model, users may need to unlock the phone's screen before answering the call.

• On the RingCentral mobile app version 8.2 and up, you can enable or disable Incoming VoIP Calling by toggling the switch for Data (VoIP) Calling. When you DISABLE Data (Voip) Calling, it disables both your Inbound and Outboud VoIP Calling.

NOTE: Battery may drain quicker on some Android models with inbound VoIP enabled.

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How to Enable / Disable Inbound VoIP Calling 

To Enable or Disable Inbound VoIP Calling, follow the steps below:

IMPORTANT: When you turn off Data (Voip) Calling, it disables both your Inbound and Outboud VoIP Calling.

Step 1:  

Log in to your RingCentral mobile app.

Step 2: 

Tap your Profile Picture.

Step 3: 

Tap Data (VoIP) Calling.

Step 4: 

You can toggle the switch for Data (VoIP) Calling On or Off.

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Call Interruption: What will happen when I get a regular call while I am on a VoIP call?

Click the link for your device below to learn more:

• Android Users
• iOS Users
 

Android Devices

When a regular call comes in while on a VoIP call, the behavior will depend on the model and OS version of your Android phone. You will be notified that there is a regular incoming call, and will get the chance to decline or answer.

• During the notification, the person on the other end of the VoIP call will not be placed on hold.

• When you choose to answer the regular incoming call, that is the only time that the VoIP call will be placed on hold.

• When you decline the regular incoming call, you can automatically continue with the VoIP call.

• When you answered the regular incoming call and finished with it, you will need to tap Hold to go back to the line and continue with the VoIP call.
 

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iOS Devices

When making or receiving a VoIP call on your iOS device through the RingCentral mobile app for the first time, you will encounter the following message:

IMPORTANT: Due to iOS system design, incoming iPhone calls will interrupt VoIP calls. Reject the iPhone call to continue your VoIP call, or answer it to place the VoIP call on hold. 

​If a regular call comes in while on a VoIP call, you can take the iPhone call, reply with a message, be reminded of the call at a later time or reject the call.

NOTE: When you get a regular call on your iPhone, the party on the other end of the VoIP call will be placed on hold automatically and will not hear anything. If you accept the regular call, the person on the other end of the VoIP call will be put on hold and will hear your hold music. After you hang up from the regular call or if you reject the incoming regular call, the VoIP call will be retrieved automatically so you can proceed with the VoIP call.

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Reconnecting Message on VoIP Calls

When a VoIP call is disconnected, the call will be automatically reconnected. Users will hear a reconnecting sound, indicating the call is being re-established. You will see a "Reconnecting..." notification in the mobile app's active call screen.
 

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Slow Internet: Option to Switch to RingOut

The RingCentral mobile app displays smart recommendations when it detects that the network quality may affect the VoIP call quality. Users will get a pop-up that will provide the option to Switch to RingOut, or Continue with VoIP.