Hints & Tips, Travel

What is Roaming?

Roaming is the ability to make and receive calls, use data, and generally use your phone as you would at home, whilst traveling overseas.

Why Roam?

Mobile networks are unable to follow you everywhere you go, and can only cover you in particular areas. Whilst abroad, you are outside your network operator’s coverage area, so roaming will occur by searching for other available networks to connect to.

How?

Most mobile networks have agreements with networks outside the country to help users use their phones abroad. These agreements allow users to ‘roam’. Once you leave the country and you lose your network coverage, your phone will automatically pick up another network once you arrive at your destination, meaning you’ll get to use your phone as usual. Automatic text messages are usually sent detailing roaming prices as soon as your phone recognizes you are in another country.

Roaming is Expensive

Connecting to other networks can be expensive. You will be charged extra for using your phone whilst abroad, whether it’s for connecting to the internet, making calls and even receiving text messages. Due to this, travelers often resort to turning roaming off, only using WiFi hotspots for when they want to be connected.

How to Avoid Roaming Charges

If you opt to switch your roaming off, you will only be able to connect to the internet through a WiFi connection. For a cheap and easy alternative, Cellhire offers both International and European Data SIMs, along with additional MiFi devices, so you need not worry about returning to expensive phone bills and can enjoy being connected, even whilst away.

Hints & Tips, Travel

How to Improve Battery Life on iPhone

There’s no denying that a smartphone acts as much more than a medium of communication with others, so much so, they are vastly becoming humans’ best friend. The average person checks their phone around 85 times a day, so what happens when your best friend is out of juice? It’s arguably nothing more than an over glorified glass paperweight. Below are the best suggestions on how you can easily reduce your battery usage throughout the days you don’t have your charger handy.

  1. View Battery Usage

It might just be the case that you need to review what apps are draining your battery the most, rather than physically having to change any settings. You can check how much battery you have drained through certain apps in the last 24 hours and overall over the last 7 days by going to Settings > Battery.

The Battery Usage enables you to see how much your phone battery has gone down by, allowing you to potentially alter how much time you spend on certain apps in order to reduce your battery usage. The clock symbol located to the right under battery usage allows you to see how long you have spent on each app and the percentage it has cut from your battery. This would be a good place to start when reviewing your usage.

  1. Turn on Low Power Mode

This might be an obvious suggestion if you have an iPhone installed with iOS9 or later, but Low Power Mode is a real life saver when your battery is running on empty. You will be prompted to turn Lower Power Mode on when you hit 20% or 10% of your battery life. You can either tap it on through the prompt, ask Siri to turn it on, or go through your Settings. Settings > Battery > Low Power Mode. When switched on, your battery symbol in the top right corner will turn yellow and certain features of your iPhone will be reduced and/or disabled.

Low Power Mode disables auto email fetching, reduces your screen brightness, disables motion effects, locks your phone quicker and reduces the performance of the CPU and GPU, slowing your phone by around 40%. It is important to note that although your battery life will last longer, keeping Low Power Mode on for extended periods of time will reduce the overall performance of your phone, and this is why it is automatically switched off once your iPhone is charged up to 80%.

  1. Location Services: When using App

Keeping your Location Services on will seriously drain your battery, especially when apps are tracking your location when they don’t need to be. A number of different apps may ask you for your location when you first open them, but unless it’s really necessary, it’s suggested that you don’t provide them. Other apps, that you do allow to use your location, don’t need to be tracking you once you close them. This is why we suggest altering your settings so that certain apps can only use your location when you have them open.

You can see which apps are using your location by going to Settings > Privacy > Location Services. Here you can change your settings to only allow apps information to your location when you are using them. Other apps such as Maps and the Weather should always have your location in order to provide the best information to you.

 

  1. Don’t bother quitting Apps

Quitting an app by doubling clicking the Home button and swiping it away can actually do more harm than good for your battery. Force quitting an app takes it out of memory, resulting in the system having to completely relaunch the app and all its data when you next open it. This wastes battery as the system removes the app out of memory just to add it back again once the app is relaunched. Keeping an app in memory, (the app is ‘closed’ but hasn’t been ‘quit’), will use virtually no battery. An app should only be ‘quit’ if it isn’t performing correctly and needs a relaunch.

By closing an app, (pressing the home button to exit) you are moving the app to the background, where it will stay for a short period of time, before it enters a suspended state. When suspended, the app will stop using CPU and battery, but will stay in memory. By keeping the app in memory, the system can quickly resume your last session the next time it is opened.  You can keep as many apps as you’d like in a suspended state, (closed) where they stay in memory, without it effecting your overall battery percentage. It is when you force quit an app, that the system will use a lot of energy and battery to try and relaunch the app.

  1. Use Auto Brightness

Having your phone screen on the highest possible brightness causes you to lose a lot of battery throughout the day as the extra light takes energy to power. iOS is pretty savvy in the sense that it has an auto brightness feature. It will automatically change your screen brightness depending on the light it thinks you need. If you’re in a dark room, it will automatically turn your brightness down, and likewise in a lit room, it will make your screen brighter. If you don’t have auto brightness on, you can turn it on inSettings > Display and Brightness > Auto Brightness.

Or, just turn your brightness down manually.

  1. Turn off Background App Refresh

Background App Refresh enables apps to learn when they are frequently checked. This then allows them to prepare all the data and information needed when in use, before you actually open them. The app will have all the latest data and content when you open them as them would have been updated in the background. The feature is intended to save you loading times when initially opening the app.

This drains your battery as it will be something constantly running in the background, even when the app is closed. You can switch off this setting in Settings > General > Background App Refresh.

  1. Stop Push Email

Push Email is a feature that requires your phone to constantly be looking for new email updates, which, understandably, drains your battery life. Push email forces emails through to your phone as soon as they become available via your email server. You can change your email settings so mail is checked for, and forced through periodically, rather than all the time. You can change this option in Settings > Mail > Accounts > Fetch New Data.

  1. Update all Apps Ready to Update

With Apple regularly updating their iOS software, apps need to be constantly updated on your device so they can run effectively in conjunction with the latest iOS. For this reason, you should often check for updates in App Store > Updates and update them all at once rather than going through and manually updating as this will drain your battery life.

  1. Reduce number of Widgets on Lock Screen

Swiping left on your phone, both on lock screen and in home, will take you to see your widgets. This allows you to have a quick view of the apps that are important to you without having to actually open them. Although a great feature, and time saving, keeping this information will drain your battery life as the apps attempt to fetch the most up to date data. You can change which apps feature on this by swiping right on the home page, scrolling down to the bottom of the widgets page and click Edit.

 

  1. Should I leave my iPhone charging?

It is often a topic of debate whether you can keep your phone charging once it hits 100% or whether it will eventually wreck the battery. Contrary to popular believe, and unlike a MacBook, keeping your iPhone plugged in after it’s hit 100% will not be harmful to your battery, this is because your device knows once it is at full power and will stop charging once it hits that. You can leave you phone plugged in overnight or throughout the day without it doing any damage your battery.

It is also suggested that, instead of charging your phone once it gets to a low percentage, you should charge it little and often throughout the day. It is also completely harmless to use your iPhone whilst it is still charging.

Hints & Tips, Nachrichten aus Deutschland, Travel, US News

Specialist global telecoms provider Cellhire, opens new office in Switzerland

UK-based Cellhire has opened a new office in the Basel area – its first in Switzerland – to capitalise on the expanding Swiss market and build a platform to grow its large corporate, NGO and sports customer base.

Cellhire has a global footprint coupled with an unrivalled network portfolio which, in the context of the mobile telecommunications market, is unique. This helps Cellhire win worldwide business and differentiates it from other telecommunications companies, large and small.

Within the telecommunications industry Cellhire is famous for its ability to service many large international events including Olympic Games, FIFA World Cup, Cannes Film Festival and Tour de France, working with top-tier sponsors, print and broadcast media and sporting federations among others. Apart from events, Cellhire has a well-established base of corporate customers and also supplies the consumer travel and education markets.

Florence Lebranchu, Business Development Director, DACH Region at Cellhire, said: “Our new office in Switzerland is a fantastic opportunity for Cellhire to break into the strong NGO and sports market in Switzerland and build on the success achieved at the Rio Olympics in which Cellhire supplied 22,000 connections, including telecoms for 15 of the major Olympic teams.”

Cellhire has already secured major clients for voice and data connections in Switzerland, with some customers also choosing to partner with its sister company Vismo, to track and protect their staff operating overseas in high risk areas.

About Cellhire

Founded in York in 1987, Cellhire is a specialist global service provider, currently celebrating 30 years of innovation. The company’s success is built on providing the very best wireless solutions available anywhere and the company prides itself on being easy to do business with. Cellhire is a leading supplier to organisers and businesses during events such as the Olympic Games, FIFA World Cup, UEFA Euro finals and The Cannes Film Festival.

In 2005 Cellhire won the Queen’s Award for International Enterprise as a result of its success as a specialist in the delivery of communications solutions for events around the world. Cellhire’s commitment to delivering the highest standards of customer service is underlined by its continued attainment of ISO 9001:2008, the internationally recognised quality standard. Cellhire has service agreements with more than 100 network partners in more than 40 countries, ensuring coverage is truly global.

For further information, please visit www.cellhire.ch, call +41 32 467 1076 or email switzerland@cellhire.com

Hints & Tips, Travel, US News

Cellhire: 30 Years of Innovation

Over the last three decades, Cellhire has successfully gained recognition as a global service provider specializing in wireless solutions. With over 100 mobile network partners worldwide, Cellhire is a supplier to organizers and business during events such as the Olympic Games and FIFA World Cup. During these 30 years, mobile phones have evolved from ‘the brick’, pocket sized flip and slide devices, to touchscreen handsets providing information, connectivity and entertainment.

1987

  • Cellhire was established.

1991

  • The Orbitel TPU 901 became the very first GSM phone to launch. As this was one of the first mobile advancements, Motorola, Ericsson and Nokia were soon to follow, bringing out their own GSM devices a few months later.
  • 2G cellular telecom digital networks were launched in Finland, to support secure calling. 2G would soon be launched worldwide.

1992

  • Via the Vodafone network, on an Orbitel TPU 901, “Merry Christmas” was the very first SMS ever sent.

1994

  • The Nokia 2110 became the first Nokia handset to include a choice of ringtones including the ‘Grande Valse’, which would later become known as the Nokia ringtone. At the time, the 2110 was Nokia’s second GSM device and was the most desired handset in Europe.
  • Orange branded the Nokia 2110 as the first Orange phone. In order to sell it to its customers as a different model, it became the Nokia 2140.
  •  Charged at $1,099, IBM’s Simon Personal Communicator became one of the first attempts at a touchscreen device. It was the first device lacking physical buttons, making it completely touchscreen.
  • Ericsson invented Bluetooth in 1994, as a wireless communication technology. Ericsson, Nokia, IBM, Intel and Toshiba later came together in 1998 to form the Bluetooth Special Interest Group.

1996

  • Motorola’s StarTAC became the first flip phone, priced at $1,000. It is also the first device to include a vibrate alert function.
  • Cellhire USA opened.

1997

  • The Siemens S10 became the first phone, made accessible to the public, to feature a colored screen.
  • The Nokia 6110 gained popularity due to the preinstalled game of ‘Snake’.
  • Cellhire France opened.

1998

  • 3G telecom networks were launched commercially.
  • The number of mobile phones sold worldwide surpassed the combined sales of cars and PCs.

1999

  • The first wireless Application Protocol devices are introduced. WAP allowed the Nokia 7110 to become the first device able to access the internet over a wireless network.
  • Cellhire became a service provider for O2.

2000

  • The J-SHO4, launched by Sharp, was the world’s first camera phone, featuring 0.11 megapixels. However, the device was only available in Japan.

2001

  • The Mitsubishi Trium Eclipse came out as the first device with a full color display.
  • FoneFix, a subsidiary company of Cellhire was established.

2002

  • The Sony Ericsson T68i sends the very first picture message via the T-Mobile network. The devices was not a camera phone but instead, users had to attach a separate file. This feature cost an extra £20 a month on contracts.
  • The Nokia 7650 slider device was the very first, commercially available, camera phone featuring a 0.3 megapixel camera.
  • Blackberry introduced their first phone, Blackberry 5810, as a corporate device. The device lacked speakers and required headphones to make a phone call.

2004

  • Motorola released the ultra-thin Razr, available in customizable colors. The device was a hit and over 110 million devices were sold.
  • Cellhire gained the ‘Investors in People’ Award

2005

  • Google purchased Android for $150 million.
  • Cellhire Japan opened.
  • Cellhire was awarded the ‘Queens Award for International Enterprise’

2007

  • Described as “5 years ahead” of its time, Apple unveiled the iPhone, equipped with an inbuilt iPod and a multi-touch interface.
  • After just 74 days after its commercial launch, iPhone sales surpassed one million.
  • Cellhire China Rep office opened.

2008

  • Apple introduced the iPhone 3G, this was alongside the launch of the App Store on Apple devices.
  • The HTC Dream, the first commercially available smartphone running on Android, became available.
  • Cellhire Germany opened.

2009

  • Samsung released the first Galaxy phone with an Android OS, featuring a 5 megapixel camera and 8GB of storage.
  • 4G telecom solutions were launched.

2010

  • WhatsApp is launched as an alternative to SMS messaging, relying on WiFi enabled devices.
  • Apple launched FaceTime on the iPhone 4, a face to face video calling feature exclusively on iPhones.

2011

  • Apple unveiled Siri as a feature on the iPhone 4S, a voice activated personal assistant

2012

  • Vismo, a subsidiary company of Cellhire was established.
  • Cellhire was the Telefonica O2 partner at the London 2012 Olympics.
  • Cellhire Russia opened.
  • Cellhire was awarded the ‘O2 Special Award for Innovation’.

2014

  • Facebook purchased WhatsApp for $19.3 billion.
  • Apple announced Apple Pay as a feature on the iPhone 6, taking advantage of contactless payments.

2016

  • Google released its very first Google Assist Android Phone, The Google Pixel,  intended to rival the iPhone 7.
  • Wearable Smart technology such as the Apple Watch became increasingly popular.
  • Cellhire gained a record achievement at the Rio Olympics, providing more than 20,000 connections to athletes, sponsors and press.

2017

  • Apple is set to release the iPhone 8, rumored to have an edge to edge OLED screen.
  • Cellhire celebrates its 30th anniversary.

Hints & Tips, Travel

Top 5 Tips on How to Reduce Roaming Charges

 The last thing you want while you’re traveling, whether for business or pleasure, is to be out of touch with everyone else. Global roaming can be expensive and often result in returning home to a hefty phone bill. Here are the top 5 tips on how to reduce you’re roaming charges;

1. Know How Much You’ve Used
Its easy while abroad to flick onto the internet from time to time, check your emails, update your Instagram and plan your routes with Google Maps, but do you know just how much data you’ve actually used? You can easily monitor what you’ve been using on iPhone by going to Settings > Cellular and then look under Cellular Data Usage. Here you can see your Current Period Roaming which will tell you how much data, in megabytes and kilobytes, you have used since your last reset. Reset your usage by scrolling to the bottom of the page before you travel and you can easily monitor your roaming usage. On Android, go to Settings > Data Usage, you can also opt to set yourself a data limit which will automatically stop your device from using data once the limit is reached.

2. Disable Data Roaming and Use WiFi
If you don’t want to run the risk of using too much data while away, the safest option would be to disable your data roaming. After disabling, your device will be completely WiFi reliant, meaning that you will only be able to connect to the internet when in a WiFi zone. However, although you won’t run the risk of being charged, WiFi signals can often fluctuate and become unreliable so bare that in mind.

3. Get a Data Bundle
Your phone’s network provider may be able to offer a cheap ‘add on’ or bolt on’ to your current deal. For a fixed fee each month, your network should provide additional roaming charges that are ideal for your usage. Ensure you research this before opting for this, as your network may not offer a suitable bundle for your intended roaming usage.

4. Download Offline Apps
If you know you’re going use apps while you’re traveling, it’s a good idea to check they are available offline. Download an offline app for maps so you don’t use data when you’re checking where you throughout the day or if you have an itinerary app, you can always check what’s on the agenda. Make sure to turn your data off before you travel and check that the apps are available offline, you don’t want to be finding out they’re not once you’re away!

5. Switch SIMs
Investing in an international SIM may actually be the most cost effective solution. You’ll know exactly what you’re getting and how you’re data usage will be charged. Easily stay connected with people in the same country as well as back home, with no overage to pay. Local SIMs can be bought in airports once you’ve landed, however, these may be pricey. If you’re looking to swap SIMs, Cellhire offers both international and European Data SIMs, with additional MiFis, starting from as low as £18.99.

Hints & Tips, Travel

iOS10: Making iMessage Personal

Described as the ‘biggest release of iOS ever’, Apple’s latest software update sports a vast array of new features compatible with any device including and past the iPhone 5.

Although updated features include added 3D touch options, an improved Control Center and an overall revamp on mobile design, it is the changes to iMessage that are the most impressive. With personalization on read receipts, gaming choices and new camera options, Apple’s iOS10 update makes messages ‘more personal than ever’.

Send drawings, heartbeats and more

Featuring a slightly new layout, iMessage now has a smaller message box to type in, to make room for the 3 added options on the left hand side.

a-message-box1

iOS10 integrates the App store into iMessage so users can quickly access apps and widgets to send to other contacts. Want to compete on games? You can now send the app straight to a friend and start playing! On the same tab, share GIFs, browse the internet and share music. Sharing online content has never been easier!

 

Digital Touch

‘Digital Touch Messages’ are also a new feature, allowing you to draw pictures and send them over iMessage. Draw in 7 different colors and share your affection by sending digital kisses and heartbeats. Be warned though, these message will only appear in your thread for 2 minutes before expiring unless otherwise saved by the recipient.

Want to send something even more personal? Turn your phone landscape and handwrite a message! Click send and recipients will receive a message hand written by you that will stay in the thread forever.

d-handwriting

Invisible Ink, Animations and Slam

iMessage also comes with the option to send your messages with an effect. Choose from four ‘Bubble’ effects or five ‘Screen effects’. Choose from the following ‘Bubble’ effects:
Invisible Ink – sends your message as a pixelated blur. The recipient has to tap the message in order to see the content.
Gentle – sends the text as small and gradually grows to normal size.
Loud – used to mimic shouting, the text bubble is sent as big, wobbles a little then shrinks back to normal size.
Slam – The message bubble is quite literally ‘slammed’ into the chat, leaving a puff of dust and making the previous messages tremor.

e-message-effects

The ‘Screen’ effects fill the whole screen once the message has been sent and you can choose from Balloons, Confetti, Lasers, Fireworks or a Shooting Star.

ee-message-effects

Markup on Camera

Wanting to send a photo over iMessage? Easily navigate through your photo library and click on a photo to put it in your message. Want to take a new photo? A preview thumbnail will come up so you all you have to do is ‘capture’ the photo. Also, before you send it, not only can you edit the filter, you can actually draw, write and zoom in on certain parts on them too! Simply click ‘Mark up’ in the bottom left corner once you’ve clicked on the preview of the photo.

f-mark-up1

Emoji Predictions

If you’ve installed iOS10, I don’t need to tell you that the Emojis have changed, they look very different. With more variety to choose from including a wider range of Emoji families, non-gender specific faces and a whole new bunch of faces too, should you choose to just send someone an emoji it will appear in your message 3 times the original. Yet this isn’t the only difference. iOS10 now auto analyses your message and picks out words that can be swapped for an emoji, this text will automatically highlight in orange and all you have to do is click on the text. Happy will turn into the smiling Emoji, present into the present, okay into the okay hand symbol and so on…

g-predictions1gg-predictions1

Tapback

How many times a day do you respond to messages with a one word answer? Something like ‘okay’ or a laughing emoji? Well now you don’t even have to type anything out when responding to messages. With ‘Tapback’, either double click on hold down any message sent in a thread and iOS10 gives you the option to ‘like’, ‘dislike’, ‘love’, ‘laugh’ at, ‘emphasize’ or ‘question’ the message. Once you’ve clicked an option, it will appear in a bubble above the message and the recipient will get a notification to say you’ve reacted to a message.

h-tapbacks1

Read Receipts

Want someone to know you’ve seen their message? iOS10 now allows you to customise who specifically can see your read receipts. Leave your read receipts off in settings but turn on individual ones through the info in your message thread. Once switched on, this will automatically sync to all your devices where you’re signed in on iMessage.

Hints & Tips, Travel, UK News, US News

Cellhire gets behind the “#FillTheSeats” campaign to raise attendances at the Rio Paralympics

Cellhire has purchased 200 children’s tickets for the Rio Paralympics in support of the “Fill The Seats” campaign [#filltheseats] backed by Prince Harry to help raise attendances at the event by buying and giving away a total of 10,000 tickets to underprivileged children in Rio and beyond.

The tickets, costing US$30 each and totalling US$6000 [about £4500] for Cellhire, include entry to events, transport and food.

Cellhire is closely linked with the Rio Olympics and Paralympics – thanks to its position as a preferred supplier of vital mobile telecommunications equipment including SIM cards, smartphones, and MiFi devices (portable, wireless routers) and other value-added telecoms services to major global media organisations, sponsors, Olympic Federations and teams and other visitors at the events.

“We are very keen to put something back into the local community in Rio and beyond while giving support to the Paralympics, which we know are highly valued by Paralympians and sports fans the world over,” said Tim Williams, Cellhire’s Chairman and CEO.

For the Rio Olympics Cellhire has delivered a record-breaking 20,000 connections, 4,000 of which will be used during the Paralympics which began yesterday, September 7th. This has been Cellhire’s most successful overseas event to date after London 2012.

Donations

Individuals can make donations online on a crowd funding page – https://www.generosity.com/education-fundraising/brazilian-kids-to-the-paralympics-filltheseats

That was set up by an individual, but, as of the 30th August, the IPC [International Paralympics Committee] and Rio 2016 announced a formal backing for it.

Hints & Tips, Travel

How to Set Up Email on an Android Phone

Setting up an email account on an Android: Samsung Galaxy S5 Mini

  1. Locate the email icon in the apps menu.

1 Samsung stock

  1. Enter your email address and password, then tap next.

b Samsung stock

i. If you want to add another email to your account rather than set an email up:  Tap Menu > Settings > Manage Accounts > Add an Account.

i Samsung stock

  1.  Choose your email account type. For business use, this is typically MICROSOFT EXCHANGE ACTIVESYNC.

c Samsung stock

  1. You will then be directed to the Exchange Server Settings page. This might have ‘auto-filled’ so you may have to check that the information, including Domain/username and Exchange Server, are correct.

d Samsung stock

  1.         Next, check and enter selections for syncing your email.

e Samsung stock
f Samsung stock

  1. Your email is now set up. You will be prompted to give the account a name to easily differentiate between other accounts, should you also have them set up.

 

 

Hints & Tips, Travel

How to Block a Number on iPhone

It’s often the case that we get bombarded and harassed by unknown numbers. This can become an annoyance and lead to frustration. If you’re one of the unlucky ones getting spammed with calls, messages or even FaceTime calls, there is a solution. Apple has designed a quick and easy way of blocking the nuisance calls from contacting you. Below are a number of methods of blocking numbers*.

Blocking a Number

1. Open the Phone app from your home screen

 

2. Tap on the Recent Calls list located on the bottom tab of the screen

Recents1

 

3. Locate the contact that you want to block and tap the ‘i’ Info symbol next to their name/number

info

4. Scroll to the bottom of the screen and tap ’Block this Caller

Block Caller

 

Blocking Contacts on Messages and Facetime

1. Open the Settings Menu located on you home screen

2.Scroll down to Messages/Facetime

Settings

3. Scroll down the screen to find and click ‘Blocked

Messages1

4. Tap ‘Add New’ to scroll down your contacts list to find the contact you wish to block

Add new

 

Blocking Contacts Straight From Message Thread

1. Tap on the message thread and click ‘Details’ on the top right of the screen

Details

 

2. Proceed to click on the ‘i’ Info symbol on the right

info

3. Scroll down the contacts information and click ‘Block this Caller

 

*These methods can only be carried out if you have the number/contact in your iPhone’s contact or recent calls list.

Hints & Tips, Travel

How to Change the APN Settings on your iPhone

Access Point Name settings, otherwise known as APN, are the settings your phone needs in order to connect to data servers. With them, you’re able to connect from your carrier to the internet.

Without these settings, your phone cannot obtain the correct IP address or connect to the correct server; meaning no data. Your APN settings should automatically update and connect to your carrier’s servers when you insert your SIM.

If you are experiencing difficulty connecting to the internet or are losing data services, your APN settings may be wrong. If this is the case then you should contact your carrier as you may be at risk of being overcharged. It is important to remember that you should not change your APN settings unless instructed to do so by your carrier as you will need to use the same settings as them.

If you need to change your APN settings, you can find them on your iOS device in SETTINGS > CELLULAR > CELLULAR DATA and then enter the details given to you by your carrier. Updating your iOS will also reset the settings automatically.

iphone6-ios9-settings-cellular-cellular-data

If you’ve purchased a SIM for international use then there may be a chance that you will have to input different settings manually if it doesn’t update automatically. These can be found in the SIMs instructions guide.