---
title: "Mobile"
description: "SIMs, eSIMs, data usage and everything about your mobile service."
url: "https://dev.www.lightningip.com.au/help/mobile"
canonical: "https://dev.www.lightningip.com.au/help/mobile"
---

# Mobile

SIMs, eSIMs, data usage and everything about your mobile service.

## More articles

- [Can I use my mobile overseas?](https://dev.www.lightningip.com.au/help/mobile/can-i-use-mobile-overseas.md) — How to use your Lightning IP mobile while travelling, with travel packs and Wi-Fi calling.
- [Checking mobile coverage before you switch](https://dev.www.lightningip.com.au/help/mobile/checking-mobile-coverage-before-switching.md) — How to confirm coverage at your home, work and the places you go most.
- [Companion eSIM plans for Apple Watch and Samsung Galaxy Watch](https://dev.www.lightningip.com.au/help/mobile/companion-esim-apple-samsung-watch-overview.md) — How a companion plan lets your smartwatch take calls and use data on its own, using your existing mobile number.
- [How to set up your voicemail](https://dev.www.lightningip.com.au/help/mobile/how-to-set-up-voicemail.md) — How to set up voicemail on your Lightning IP mobile for the first time, including recording a greeting and setting a PIN.
- [When and how you're billed for your mobile plan](https://dev.www.lightningip.com.au/help/mobile/when-how-billed-mobile-plan.md) — When your mobile bill arrives, the period it covers and what appears on it.
- [How to activate your eSIM](https://dev.www.lightningip.com.au/help/mobile/how-to-activate-esim.md) — How to scan your eSIM QR code, add the plan to your phone and get connected, usually within a few minutes.
- [How to listen to your voicemail messages](https://dev.www.lightningip.com.au/help/mobile/how-to-listen-to-voicemail-messages.md) — How to dial in and listen to new voicemail messages from your Lightning IP mobile, and the keys to use while a message is playing.
- [Which phones and plans are eligible for a companion watch eSIM](https://dev.www.lightningip.com.au/help/mobile/companion-esim-eligibility-devices-plans.md) — The phone plans, phones and smartwatches that work with a companion eSIM.
- [Getting an international roaming add-on before you travel](https://dev.www.lightningip.com.au/help/mobile/international-roaming-add-on-before-travel.md) — Travel pack options, and how to activate one by SMS when you arrive overseas.
- [Listening to your voicemail from another phone](https://dev.www.lightningip.com.au/help/mobile/voicemail-from-another-phone.md) — How to check your messages when you don't have your own phone with you.
- [Setting up your Apple Watch companion eSIM](https://dev.www.lightningip.com.au/help/mobile/setting-up-apple-watch-companion-esim.md) — Step-by-step guide to activating a companion eSIM plan on your Apple Watch so it can take calls and use data without your iPhone nearby.
- [Setting up your mobile data (APN) settings if it's not working automatically](https://dev.www.lightningip.com.au/help/mobile/setting-up-apn-mobile-data-settings.md) — The APN and MMS settings to enter if your phone doesn't set up mobile data automatically.
- [What happens if you exceed your included data](https://dev.www.lightningip.com.au/help/mobile/what-happens-exceed-included-data-mobile.md) — How automatic data top-ups work once you go over your plan's included data, and how to turn them off.
- [Are Lightning IP mobile plans contract or month-to-month?](https://dev.www.lightningip.com.au/help/mobile/mobile-plans-contract-or-month-to-month.md) — Lightning IP mobile plans are month to month with no lock-in contract. Here's what that means for changing plans, cancelling and your bill.
- [Checking if your phone supports eSIM](https://dev.www.lightningip.com.au/help/mobile/checking-esim-compatibility.md) — How to confirm your iPhone or Android phone supports eSIM before you order, and what to do if it doesn't.
- [How to check your data usage and remaining balance](https://dev.www.lightningip.com.au/help/mobile/check-data-usage-remaining-balance.md) — Text BAL to 179 to see how much data you've used, what's left and your banked data, plus the usage alerts we send as you get close to your limit.
- [How to turn off voicemail](https://dev.www.lightningip.com.au/help/mobile/how-to-turn-off-voicemail.md) — Turning voicemail off if you'd rather unanswered calls just ring out.
- [Setting up your Samsung Galaxy Watch companion eSIM](https://dev.www.lightningip.com.au/help/mobile/setting-up-samsung-galaxy-watch-companion-esim.md) — Step-by-step guide to activating a companion eSIM plan on your Samsung Galaxy Watch so it can take calls and use data on its own.
- [Using Wi-Fi calling overseas](https://dev.www.lightningip.com.au/help/mobile/wifi-calling-overseas.md) — How to use Wi-Fi calling to make calls and send texts while you're overseas, how to turn it on, and how those calls are charged.
- [Changing how long your phone rings before voicemail picks up](https://dev.www.lightningip.com.au/help/mobile/changing-ring-time-before-voicemail.md) — Adjusting how long your phone rings before unanswered calls go to voicemail.
- [Managing your companion eSIM plan](https://dev.www.lightningip.com.au/help/mobile/managing-companion-esim-plan.md) — Cancelling your companion plan, swapping watches, getting a new phone, and what to do if your watch is lost.
- [What happens when you run out of data](https://dev.www.lightningip.com.au/help/mobile/what-happens-when-you-run-out-of-data.md) — What happens when you reach your plan's included data, and your options for the rest of the month.
- [What to do if roaming isn't working when you land](https://dev.www.lightningip.com.au/help/mobile/roaming-not-working-when-you-land.md) — Troubleshooting steps if your phone won't connect to a network overseas, from roaming settings and network selection to checking your travel pack.
- [Why your first mobile bill may be higher than expected](https://dev.www.lightningip.com.au/help/mobile/first-mobile-bill-higher-than-expected.md) — Why your first mobile bill can be higher than your monthly plan fee: your plan is billed in advance, with any part-month charges and usage added.
- [How to delete your voicemail messages](https://dev.www.lightningip.com.au/help/mobile/how-to-delete-voicemail-messages.md) — How to delete old voicemail messages from your Lightning IP mobile so your mailbox doesn't fill up and new messages keep coming through.
- [Tips to reduce your mobile data usage](https://dev.www.lightningip.com.au/help/mobile/tips-reduce-mobile-data-usage.md) — Practical ways to make your mobile data last longer, from Wi-Fi and streaming settings to finding the apps that use the most in the background.
- [Troubleshooting companion eSIM setup](https://dev.www.lightningip.com.au/help/mobile/troubleshooting-companion-esim-setup.md) — What the common error messages mean when setting up a watch companion plan, and how to fix them.
- [Checking your phone is unlocked and compatible with our network](https://dev.www.lightningip.com.au/help/mobile/phone-unlocked-network-compatible.md) — How to check your phone is unlocked and compatible with the Telstra Wholesale Mobile Network before you put a Lightning IP SIM in it.
- [Does unused data roll over to next month?](https://dev.www.lightningip.com.au/help/mobile/does-unused-data-roll-over.md) — How data banking works on Lightning IP mobile plans, the order your data is used in, and when banked data is lost.