ISDN Switch-Off
Is your organisation ready for the pstn switch off as BT recommends people switch to mobile before december 2025 to safeguard your organisaton. Calls will need to shift to digital landlines that use a broadband internet connection, but an internet-based service needn’t be complicated, as providers like Zexi will know the right questions to ask you regarding your traditional telephone system and analogue technology, to help you prepare your business and make the switch before the switch off in 2027. After this date in 2027 pstn will no longer work, and every phone line in the uk using the old networks, won’t work anymore.
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What Does the ISDN Switch-Off Mean for Your Business?
ISDN, or Integrated Services Digital Network, let people send digital data over traditional phone lines. It was much faster than older analogue systems and made phone calls clearer. You could use ISDN to talk on the phone and send data at the same time. This improved flexibility and cost, and is useful for video calls, internet use, and sending big files. But as technology advanced, faster and better voice and data systems like Voice over Internet Protocol (VoIP) took over. Now, ISDN is rarely used and has mostly been replaced.
Why Is ISDN Being Replaced?
The UK’s outdated Public Switched Telephone Network (PSTN) and ISDN services are being phased out and the use for copper wires which is not becoming fragile and prone to breaking, is no longer required. Ideally, businesses using a bt business pstn network will replace with full fibre to the premises or (fttp) fibre to a cabinet (sogea) which will eventually be graded to fttp.
Originally planned for the end of December 2025, nearly all providers will stop selling pstn technology, and pstn is becoming old technology, making way for 20th century technology, new digital networks and cheaper calls over the internet. As UK businesses switch to mobile and internet communications, , and ip technology will be required for all business phone telephony before the final shutdown set for 31 January 2027. Orders have gradually been moving over for every phone line user since September 2023, enabling full fibre to become standard and SIP based technology (session initiation protocol) . Are you ready for the ISDN switch?
How to Know if Your Business Uses ISDN Lines
Does your business still use ISDN lines? With the BT Openreach PSTN switch-off coming soon, it’s time to check, don’t leave it until the pstn and isdn switch-off date. If you are not sure if you are using traditional analogue lines, contact a business communications provider like Zexi, sooner rather than later, to check whether you need to upgrade to a fully digital network.
Steps to Identify Your ISDN Usage
- Ask your phone company: Call your provider or IT team to find out if your phone lines use ISDN or something else like VoIP.
- Check your phone system: Look at the manual or ask the person who manages it to see if it’s connected to ISDN lines.
- Search your equipment: Look around for devices like ISDN routers or terminal adapters.
- Check your bills: Look at your phone bills to see what type of lines or services you’re paying for.
- Get help if needed: If you’re unsure, ask an IT or telecom expert to check your setup.
How Will the ISDN Switch-Off Affect Your Business?
The ISDN switch-off means old phone lines like PSTN and ISDN won’t work anymore. Businesses have to switch to newer systems like VoIP or SIP trunking. This isn’t just about getting new phones. It’s about finding cheaper, smarter ways to communicate. Modern systems are faster, more flexible, and better for how we work today. Change is coming, and it’s time to adapt.
Moving to VoIP
VoIP is cheaper than regular phone lines, cutting down on call and setup costs. It’s also super flexible—employees can make and answer calls from anywhere as long as they have internet. Simple, cost-saving, and reliable.
Benefits of Switching from ISDN to VoIP
- Save Money. VoIP helps businesses save on local and international calls. It also gets rid of the need for big, expensive phone equipment.
- Easy to Grow With. VoIP grows with your business. You can quickly add or remove users whenever you need to.
- Stay Secure. VoIP protects your calls and messages using encryption and two-factor login. Your data stays private.
- Work Anywhere. VoIP lets you call, text, or join meetings from your phone or computer, no matter where you are.
How to Get Started with VoIP
Starting with VoIP is easier than you think. Whether you’re switching from a landline or setting it up for work, it’s simple to do.
Steps for Switching to VoIP
Here’s what you need to set up a VoIP phone system:
- Internet Connection: You’ll need fast and reliable internet so your calls are clear. Make sure it can handle the extra data from calls.
- VoIP Devices: Use IP phones, apps (called softphones), or adapters to connect your regular phones to the system.
- Service Provider: Choose a trustworthy VoIP provider. They’ll manage the software, tech, and support for you.
- Features: Think about what your business needs. Do you need call routing, voicemail, conference calls, or mobile options?
- Security: VoIP works through the internet, so it’s important to pick a provider with strong security to protect your calls.
Essential Components for VoIP Setup
- Strong internet connection: Make sure your internet is fast and reliable. It helps keep calls smooth and safe from hackers.
- Works with VoIP: Check your devices and network to ensure they can handle VoIP. This avoids issues and keeps calls clear.
- Pick the right provider: Choose a VoIP provider that uses strong security, like encryption and firewalls, to stop hackers and protect your data.
- Stay secure: Take steps to guard your calls and information. Follow rules to keep everything safe.
Internet
- Secure Internet Connection: Crucial for safeguarding sensitive voice data from unauthorised access or interception.
- Vulnerability to Cyber Threats: Without proper security measures, VoIP networks are susceptible to eavesdropping, data breaches, and service disruptions.
- Mitigation of Risks: Implementation of encryption, firewalls, and regular security updates helps mitigate these risks.
- Ensuring Privacy, Integrity, and Availability: Security measures ensure the privacy, integrity, and availability of communication channels.
- Business Protection and Compliance: Prioritising a secure internet connection helps businesses protect their communication infrastructure and maintain regulatory compliance.
Devices
- Softphones: Softphones are software applications installed on computers, smartphones, or tablets, turning these devices into VoIP endpoints. They often feature intuitive interfaces for making calls, accessing contacts, and managing voicemail.
- VoIP Gateways: VoIP gateways bridge the gap between VoIP networks and traditional telephone systems, enabling communication between IP-based and legacy analog or digital systems.
- VoIP Conference Phones: These specialised devices are optimized for group communication, featuring enhanced audio quality, microphone arrays, and speaker systems suitable for conference rooms or meeting spaces.
- IP Phones: These resemble traditional telephones but connect directly to the internet, often via Ethernet cables or Wi-Fi, allowing users to make and receive VoIP calls.
Provider
- Seamless Transition: Partnering with an experienced VoIP provider ensures a smooth transition to VoIP technology.
- Extensive Knowledge and Expertise: Experienced providers bring extensive knowledge, expertise, and technical support to tailor solutions to specific business needs effectively.
- Proactive Monitoring and Troubleshooting: Providers offer proactive monitoring, troubleshooting, and security measures to safeguard communication data and minimise disruptions.
- Optimisation of Network Performance: Experienced providers advise on best practices to optimise network performance, ensuring efficient communication.
- Integration of Advanced Features: Providers integrate advanced features seamlessly, enhancing efficiency and productivity within the organisation.
- Enhanced Efficiency and Productivity: Partnering with an experienced VoIP provider enhances efficiency and productivity by leveraging their expertise and support.
Features & Functionality
- Call Routing: VoIP systems enable flexible call routing options, allowing calls to be directed to specific extensions, departments, or devices based on predefined rules or criteria.
- Auto-Attendant: VoIP systems can utilise auto-attendant features to greet callers, provide menu options, and route calls to the appropriate destination without human intervention.
- Call Recording: VoIP systems support call recording functionality, enabling users to record and store conversations for quality assurance, compliance, or training purposes.
- Mobile Integration: VoIP systems offer seamless integration with mobile devices, enabling users to make and receive calls, access voicemail, and utilise other features while on the go.
- Unified Communications: VoIP systems integrate with other communication tools and applications, such as email, instant messaging, and collaboration platforms, creating a unified communication environment for enhanced productivity and collaboration.
Security
- Importance of Security: Security is paramount within VoIP phone systems to protect sensitive communication data.
- Vulnerability to Cyber Threats: Without adequate security measures, VoIP networks are vulnerable to various cyber threats, including eavesdropping, data breaches, malware attacks, and denial-of-service (DoS) attacks.
- Mitigation of Risks: Implementing robust security protocols, such as encryption, firewalls, intrusion detection systems, and regular security updates, helps mitigate these risks.
- Protection Against Cyber Attacks: Security protocols safeguard communication data from unauthorised access, interception, or tampering.
- Continuous Security Measures: Regular security updates and proactive monitoring are essential to maintain the effectiveness of security measures within VoIP systems.
Why Choose Zexi for Your VoIP System
Zexi is a UK VoIP provider with years of experience helping businesses improve communication. We provide hardware, internet, software, and 24/7 support. We’ll help you set up the right system for your business. With over 30 years in the industry, we focus on seamless and reliable solutions, from site survey, to installation, user training and ongoing support.
Our in-house engineers work with your IT to ensure that you transition with minimal interruption to your organisation, as we understand the need for a seamless service to you and for you to your clients. As a communication technology provider since 1993, we understand that down time is disruptive to you and your business, and with long term experience, and the right providers, we will speak with you on the technical level that you require for your needs.
Ready to switch to VoIP? Contact us today.
Frequently Asked Questions
Have a question in your mind?
Will I lose my number with the ISDN switch-off?
No, you won’t lose your number if you switch to a fully digital service like VoIP before the deadline. All you need to do is transfer your number to a VoIP provider. But if you wait too long and your ISDN line is cut off, your number could be given to someone else. Getting it back after that would be really difficult. Act quickly to avoid the hassle.
What will replace ISDN and PSTN?
The main alternatives to ISDN and PSTN are VoIP and SIP. VoIP uses the internet for calls, offering convenience and handy features. But is it always reliable? SIP manages the start, flow, and end of calls or video chats in real time, streamlining communication. Still, how smoothly does it integrate into every setup?
Can I still use a landline phone with fibre broadband?
Yes, but not like before. Landlines can still work with some fibre broadband services, but you’ll need to connect them to your router. Single order broadband is a type of broadband connections and your telephone provider can help you with how to make the switch. You’ll need an Analogue Telephone Adapter (ATA) or a modem with a VoIP port. This lets your phone make calls through the internet instead of old phone lines.
How does the ISDN switch-off impact businesses that rely on alarms or CCTV systems?
The switch-off will affect systems like alarms and CCTV that rely on ISDN or PSTN lines. If these systems aren’t upgraded to IP-based technology, they’ll stop working completely. To stay safe and follow the rules, businesses must contact their service providers and switch to digital solutions.
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