Category Archives: Tips & support

Issues with your Mobile signal? What to do

A loss of signal can be frustrating and detrimental to your productivity. The following post offers a step-by-step self-help guide for those on O2, Vodafone and EE networks.

1. Checking your coverage

Firstly, check the coverage and network status in your area to see if you’ve been affected by an outage. Common causes include extreme weather such as strong winds, flooding or falling trees that can affect network masts, alongside  temporary structures such as cranes or scaffolding that can obstruct signal.

Person Using Black Android Smartphone

If your network is carrying out planned or unplanned maintenance, your signal will also probably be affected, you can find the coverage checker for your network below:
– Vodafone
– O2
– EE
If you’re in uncharted territory, your issue could be the building as the signal strength needed to pass through materials, such as window and walls, varies across different sites. Furthermore, the closer you are to a mast, the stronger the signal you’ll receive – influenced by the lay of the land (hills, valleys, forests, etc).

2.  Check your device

In order to ensure its not your device causing the issue. We recommend turning your phone off and on again to refresh your network connection. You may also wish to toggle your flight mode on and off and manually select your network within your phone settings. In some cases, older software can affect your device’s ability  to retrieve signal, to ensure this isn’t the issue, please check for software updates too.

3. Check your SIM

In order to rule out a SIM issue. You can try your phone in another phone belonging to your network or unlocked, or try a different SIM in your phone that belongs to the same network.

Black Smartphone on Black Table Top

4. Check your account

If your account is on hold, this will also prevent network use. Billing issues or a failed top-up could be the cause of your inability to access the network, to check your account you can login to your account via your provider if available, or if you’re a CMM customer you can call our support team on 01252 854352 or email

5. Using Wi-Fi for messages and calls in the mean time


For Vodafone users, all you need to use the WiFi service is a compatible device on a supported tariff including Pay monthly Red Extra or Red Entertainment plans, or a Red or Red Value Bundle or one of the following business tariffs:

  • Red, Red Extra, Red Entertainment, Red Value Bundle, Red Sharer
  • Business Value, Business Extra, Business Premier, Business Black, Business Black Global, Business Plus, Business Freedom no-VPN version, Business Advance
  • Latest Public Sector price plansimg_690x200_infographicCompatible devices include:
  • Samsung – Galaxy A3 (2016 and 2017), A5 (2016 and 2017), A6, A8, J5 (2016 and 2017), J3 (2017), J6 (2018), S6, S6 Edge, S6 Edge+, S7, S7 Edge, S8, S8+, S9, S9+, Note8, Note 9 and XCover, 
  • Apple – iPhone XS, iPhone XR, iPhone X, iPhone 8, iPhone 8 Plus, iPhone 7, iPhone 7 Plus, iPhone 6, iPhone 6 Plus, iPhone 6s, iPhone 6s Plus and iPhone SE, 
  • Huawei – P10, P10 Plus, Smart Mate 10 Pro, P Smart, P20, P20 Pro, P10 Lite, P20 Lite, 
  • Sony – XZ Premium, XZ1, XZ1 Compact, XA 2, XZ2, XZ3
  • Vodafone – N8, Smart Ultra 7, Smart Platinum 7, Smart N9 Lite

No extra  hardware or app is needed. Calls can be made via your standard address book and from your normal number. Better yet, the person you’re calling doesn’t need to have Wi-Fi calling and there is no additional charge for using the WiFi calling service. Any calls you make will come out of your existing UK monthly minutes allowance – as normal calls would via a mobile signal!

The use of WiFi Calling whilst roaming is prohibited and is not supported. However, in certain circumstances it may be possible to enable WiFi Calling whilst abroad. If you’re abroad and attempt to use WiFi calling, your call will be charged at Vodafone’s standard international rates and treated as a call from the UK to an international number. We highly recommend you do not use WiFi calling abroad as Vodafone EuroTraveller, WorldTraveller and other international bundles will not apply.


For O2 users,  WiFi calling is able for Pay Monthly Consumer and Business customers with compatibles and services (Please note this excludes O2 Business Mobex, Best for Business tariffs or Public Service Network tariffs and Pay As You Go users). There’s no need to register or download an app, but you will need to turn on WiFi calling on your device (this service is not available to use abroad). The process varies from phone to phone, but is usually under ‘Phone’ or ‘Connections’ within your settings. Compatible devices include:

  • Apple iPhone Xs, iPhone Xs Max, iPhone X, iPhone Xr, iPhone 8 Plus, 8, 7 Plus, 7, 6s Plus, 6s, 6 Plus, 6, SE,
  • Samsung Galaxy S10, S10e, S10 Plus, S9, S9 Plus, S8, S8 Plus, Note8, S7, S7 edge and J3 2017, A8, A3 2017, A6, J6, J5 (2017), A5 (2017), Note9, A7, J6+, J4+, A9,
  • Sony Xperia XZ2, Xperia XZ3, XZ2 Compact, XZ Premium, Xperia XA2, Xperia XZ1, Xperia XZ1 Compact,
  • Oneplus 5, 5T, 6, 6T,
  • HTC U11,
  • Doro 8035
  • Google Pixel 3, Pixel 3 XL.

Please note, on some Android devices, Wifi and 4G Calling will only work if you’re using O2 firmware. WiFi calls made are included as part of your usual UK tariff allowance, and out-of-tariff calls are charged at your standard rate. For those using O2 Just Call Me, Mobex, Mobile Recording or Asavie, you will need to remove them to use WiFi Calling – you can always switch back through My O2 or if you’re a CMM customer, get in touch with your account manager by phoning 01252 854352.


For EE users on a Pay Monthly plan,  you’ll need to have the latest software update installed, a compatible device and have switched on WiFi calling in your phone settings. The process varies from phone to phone, but is usually under ‘Phone’ or ‘Connections’ within your settings. Compatible devices include:

  • Apple iPhone 5c, 5s, 6, 6 Plus, 6S, 6S Plus, SE, 7, 7 Plus, 8, 8 Plus, X, 
  • Samsung Galaxy S9, S9+, S8, S8+, S7, S7 edge, S6, S6 edge, S6 edge+, A3 (2017), A5 (2017), Note 8, 
  • Nexus 5X, 6P, 
  • Nokia 3, 5, 8, Lumia 550, 650, 950, 950XL, 
  • HTC 10, U11, U11 Life, 
  • BlackBerry Priv, Dtek 50, Dtek 60, KEYone,
  • Google Pixel, Pixel XL, Pixel 2, Pixel 2 XL,
  • Huawei P10, P10 Lite, P10 Plus, P Smart,
  • Sony Xperia XZ1, Xperia XZ1 Compact
  •  EE Hawk.

Calls and texts will come out of your UK monthly allowance (please note this service is unavailable abroad). If you go over your allowances you’ll be charged at standard rates. Calls made using WiFi Calling will not be shown as WiFi calls on your bill. Unfortunately for EE Pay As You Go users this service is currently unavailable.

Apple iPhone X user? 5 tips and tricks

1) A more secure way to pay

With the iPhone X, you can utilise the Face ID facial security technology to activate Apple Pay, allowing you to secure online payments as well as in-store. This function takes a 3D scan of your face using the phone’s TrueDepth camera, which Apple claims is far more secure than the Touch ID fingerprint scanning tech it replaces. Head to Settings -> Face ID and Passcode, and toggle on Apple Pay, alongside any other features you wish it to work with. Once set up, double click the side button to activate Apply Pay, glance at your screen then hold your phone on the reader.

2) A control centre you’re in control of

From the Torch and Camera shortcut to the Apple TV remote and ‘Do Not Disturb Feature’, you can add in whichever applications you’d like to keep to hand instead of the default shortcuts. To customise your control centre, head to Settings ->  Control Centre -> Customise.

3) Slow apps? iPhone freezing? A forced reset could save the day

The Apple iPhone is essentially a computer and like many computers, it needs a reboot from time to time. A hard reset forces a reboot and can help when your iPhone slows down or freezes by fully closing down all applications and starting them up again from scratch – this does not mean wiping off everything you have stored. With no home button, the process for the iPhone X is slightly different to older models. To do so, press and quickly release the Volume Up button, then do the same for the Volume Down button. Follow up by pressing the Side button, and hold until the display suddenly shuts off — usually about 10 seconds. Release the side button once  your device shows the Apple boot screen.

4) 4K recording

The iPhone X is capable of recording video at 4K 60fps, offering quadrupled resolution. This setting, however, is not active by default. To enable head to Settings -> Camera -> Record video -> Change from 1080p at 30fps to 4k at 60fps. Please note that 4K recordings consume more storage (Around 10.5GB (5.1GB) for 30 minutes) so uploading your videos to your laptop or PC is recommended.

5) Smarter Do Not Disturb

Do Not Disturb mode allows you to choose when you want to receive alerts, call and notifications. For instance, you can head to Settings -> Do Not Disturb and turn on Scheduled. This means you could set Do Not Disturb hours to Bedtime which, when enabled, will dim your lock screen, silence calls and send notifications to During Bedtime in your notification centre until your scheduled Do Not Disturb ends. You’re also able to allow calls from specific contacts or groups so that you can be reachable in case of an emergency, while taking a healthy break from work.

To do so, head to Settings -> Do Not Disturb and scroll down to Allow Calls From. You’ll be able to choose from ‘No One, Everyone, or Favourites”, which can be set up in your Contacts app.

Do you know how your data pool is being used? 5 key questions your business needs to be able to answer

  • What is the split of business versus personal usage?
  • What financial savings would you gain by enforcing policies on specific apps?
  • Where are your users around the world, and what data are they accessing?
  • Is usage compliant with legal regulations?
  • Are you able to control jailbroken devices?
Every business should have control of the devices entering their organisation, whether they are company devices or part of a BYOD programme. We can give you the advantage of unique visibility into data usage, through advanced analytics. Allowing you to easily identify areas for change, so you can take the first step in improving your telecoms strategy.
We partner with Wandera to give you the ability to not only understand what’s driving your next data bill, but to control it too. Whether your employees are spending too much time on Facebook or you’re haunted by monthly bill shock, we can help you create the business policy you want, allowing you to rest assured that your company devices are being used in the way that you intended. While the three C’s: Content Control, Capping and Compression are at work – you can sit back and watch the savings roll in.


Key benefits of data management

Gain universal control with the ability to manage all mobile acitivity, from which apps are downloaded to specific URLs you wish to block – even on jailbroken devices.

Not only can you pick and choose what you find acceptable usage, but you can create policies that apply to diferent groups in different circumstances, georgraphies or devices.

Heavy regulation across different industries means the risk of non-compliance can be expensive. Implementing a data mangaement solution means you can ensure usage is compliant with regulation and reduce corporate legal exposure in the event of unwarranted illegal or unacceptable behavior.

✔ You’ll be able to create custom notifications when certain thresholds are reached, giving you the visibility you need to set caps and wrestle control of data usage at the time it matters most.

✔ You can cut data usage by more than 10% by compressing data in real-time, in a way that’s undetectable to the end user.

Get in touch today

For more information or to receive your free quote, please do not hestitate to get in touch. We are always more than happy to help!

Let it snow, let it snow, let it snow. Top tools for flexible working

Has your business invested in technology that allows you to work whenever and wherever you need to  – even when the snow hits? Here’s our top choice of tools:

Office 365

Microsoft Office 365 is the cost-effective smart solution to cloud computing. Office 365 ensures emails, calendar and contacts are automatically updated across your PC’s and Smartphones so you can access customer details and schedule that prospect meeting whether at home or in the office.

Better yet, Office 365 Web Apps are companions to Word, Excel, PowerPoint, and OneNote so vital business applications and documents can be accessed, viewed and/or edited directly from a web browser.

Office 365

If the snow hits, you can hold your sales and support meetings via Skye (the conferencing and instant messaging part of Office 365), and share your sales forecast in Excel on everyone’s device of choice at the same time and any member of your team can edit it accordingly.

For more information on Office 365 please click here. For more information on how to stay productive throughout all weathers, please get in touch on 01252 854352, we are always more than happy to help.


Thanks to bigger and better data capabilities, businesses can take advantage of VoIP aka the “Voice Over Internet Protocol”. This flexible phone system allows you to make calls over your internet connection.

Incoming phone calls are routed to your VoIP phone where-ever you plug it into the network so you can unplug your desk-phone from the office, plug it in at home and work as normal – providing complete flexibility.

Better yet if the snow strikes, you can record a message remotely to inform customers that although the office may be closed, business is still open as usual.

For more information on VoIP please click here.

Vodafone One Net

Ideal for small to medium-sized businesses, Vodafone One Net Business is a cloud-based service that seamlessly integrates your landlines, mobiles, desktop and tablet connectivity, into a single system. This means you can connect with customers, prospects and colleagues at any moment, through any device.

Even though landlines and mobiles are combined, just one number will appear to customers. Ensuring you can take or make calls from any phone – irrelevant or whether you’re snowed in at home, off-site or made it to the office.

One Net also offers the ability to share a single voicemail box for all your numbers, ensuring any messages can be retrieved and acted on by anyone in your company, so a customer call is never truly missed.

With built-in disaster recovery, we highly recommend One Net as both a reliable and intelligent solution for your business. Click here to take advantage of our free in-house One Net demonstrations.

Why PSTN/ISDN customers are switching to VoIP and why they’re not

Earlier technology, PSTN (Public Switched Telephone Network) is the standard telephony set up for small businesses, with ISDN (Intergrated Services Digital Network) delivering digital lines for larger businesses. Thanks to bigger and better data capabilities, businesses are now embracing VoIP, aka the “Voice Over Internet Protocol” – the flexible phone system that allows you to make calls over your internet connection.

Why are businesses moving to VoIP?

VoIP has the ability to cut monthly costs associated with multiple PSTN/ISDN lines, as a VoIP system requires just one line with an internet connection. Only a single network is needed to carry both your voice and data, whilst storage space and equipment costs associated with traditional systems are diminished. Scaling up or down is easy, you can add a line as soon as you add a new employee, and when an employee leaves, you can easily reassign or remove the line. Ensuring you always have the right number of phone lines for your needs. In contrast, ISDN can hinder growth plans and/or adjustments to staff turnover as it cannot be easily expanded to accommodate for new users and carries the costs of installation and downtime if you choose to move offices.

With VoIP, you can take advantage of inexpensive international calls and long distance calls and gain the ability to make and receive calls anywhere with an internet (or 3G/4G) connection. This dramatically increases your flexibility and addresses the issue of ‘service interruptions’ better than any traditional PSTN or ISDN solution could.

Why would a business stick to PSTN/ISDN?

Having voice and data on one connection can also be problematic if the implementation has not been scoped properly. If there’s not enough bandwidth available, for example, then your call quality could be very poor, making calls extremely difficult to understand and, of course, having a negative impact on your brand.  However, Voice can be prioritised over data traffic and concerns over poor call quality are therefore due to poor implementation rather than the technology itself and can be solved by using an experienced telecoms provider with VoIP expertise. Secondly, when VoIP first arrived, it was a time of dial-up connections and VoIP was associated with poor audio quality and dropped calls. In light of the increased availability of broadband Ethernet services, however, this is no longer a problem and VoIP is often the most popular option, despite the misconception still held by some businesses.

The future of telephony

In line with current progressions in VoIP technology, the British Multinational Telecommunications giant, BT, will switch off ISDN lines in 2025, with purchases discontinued as of 2020. In light of the upcoming switch off, we are offering a free VoIP system for customers who choose CMM to progress to VoIP*. You can find more information here!  At CMM, our UK based team provide free set up and support before, during and after the sale, starting with your free audit and quote.

Terms and conditions
*Minimum 3 year contract 
*Broadband connection must be through CMM

What’s new in Android 9 Pie

Google’s latest version of Android 9.0 or ‘Pie’ is currently available on the latest Google Pixel smartphones or the Essential Phone via an over-the-air update. As usual, those on other Android devices will have to wait for their smartphone manufacturer to deliver the update. From minor changes such as moving the time to the top left of the status bar to larger improvements in battery life, Android Pie brings a variety of improvements.

Key new features

Gesture navigation

The home button now takes a pill-shape and moves in the same space as the traditional on-screen buttons. Tap it to go home, flick it up to see recently used apps, swipe upwards twice or pull it up further to get to the app drawer, or hold down to activate Google Assistant. You can also drag it to the right to switch to the last app (similar to the double tap of the overview button) or drag and hold to cycle through recently used apps. The back button still appears when needed, but the overview button has gone. The gestures are not activated by default for now, which means to try them out head to Settings > System > Gestures and toggle the “Swipe up on Home button” option.

Adaptive Battery and Brightness

Adaptive Battery learns your usage patterns and directs the power to only the apps you need at the time you need them for more predictable day-to-day battery life. Using the new battery feature, user’s on the beta programme found an increase in battery life in the region of 20%.

Smart replies

Smart replies will now be incorporated in more apps than Gmail and Smart Reply, allowing you to easily send one-button replies.

App actions

App actions works to predict not only the app that you want at any particular moment, but an action from within that app too. For example, if you regularly check the weather in the morning, weather will appear when you wake as a suggestion for one-tap access.


Apps you have given permission to access your location, microphone, camera and network status will no longer be able to access them when idle in the background. This means it will be harder for rogue apps to spy without your knowledge and consequently better protect your privacy.