Telecoms Connectivity Guide

Telecoms Connectivity Guide


There are several key reasons why business professionals need to understand the current range of connectivity solutions now available in the UK marketplace. This guide is aimed at owners & managers of business IT and telecoms services. People who need to know the options, understand where the market & technologies are heading. Most importantly how their business can take advantage of these new services.


Cloud Services – Most organizations are now comfortable with the concept of cloud-based services and applications. The business benefits in terms of flexibility, built-in security and removing on-premises equipment are apparent. However, some still see it as risky to move familiar services and applications to the cloud and will need to be confident that their networks can provide the availability and quality of service required to support the transition without impacting performance or productivity.

Complexity & Choice – At the same time, complexity & choice of vendors and solutions continues to increase, leaving business professionals to puzzle over these choices. At the same time, using a strategy of multiple suppliers to lower costs can expose the organisation when things get complex or there’s a problem. Businesses are looking for a proven supplier that can manage the network end-to-end and ensure problems can be resolved quickly.

Cyber-Security – Guarding against internet threats and having robust cyber-security is now also a key concern. Businesses are looking for connectivity solutions where cyber-security is ‘built-in’ and where cyber-security is effectively and simply provided to protect all users from threats from the public internet.

Changing Telecoms Landscape – The PSTN (Public Services Telephone Network) is constantly changing. Many will already know about the withdrawal of iSDN (Integrated Services Digital Network) and how these telephony services are moving to cloud-based solutions, such as SIP (Session Initiation Protocol), Hosted PBX or cloud-based telephony. All these new services rely on having good telecoms connectivity. You might also be interested in our guide on Cloud Telephony.

What are the Key Issues you Face today?

  • Is your telephone system due for renewal?
  • Do you have multiple sites?
  • Do you run, or plan to run, cloud-based applications that are critical for the business?
  • Is your current network / access contract about to be renewed?
  • Do you have operational or service issues with your current suppliers?
  • Have you had a cybersecurity issue?
  • Have you had a major change of personnel or premises?
  • Have you recently been part of, or are they about to undertake a business merger or acquisition (M&A)?
  • Has the local access / local exchange recently been upgraded?

If you answer yes to any of these, then perhaps it’s time to consider your current telecoms connectivity and phone solution.

Addressing your Connectivity needs

  • You always want to keep your staff productive – Therefore it’s essential you get reliable access to business applications from any Internet connected location. Select a supplier who operates a core network that is resilient and reliable. Make sure your partner can provide highly available advanced WAN services (99.999%). And ask for proof that there is minimal downtime and SLAs are met.
  • You are concerned about business continuity – Therefore high availability is needed. Ask about broadband / ethernet or 4G backup to ensure any disruptions are mitigated. Consider Next Generation Firewalls (NGFW) that helps to protect organizations from productive time lost through malicious activity emanating from the public Internet
  • You want IT strategy to be aligned with business strategy – Look for connectivity solutions that are configured to meet current and anticipated business needs, which can be modified simply and quickly to support changing needs. For example, to service rapidly growing sales volumes. Look for a partner who helps with IT strategy & IT Roadmaps and brings together business needs and IT.
  • You understand the importance of customer service – A reliable, flexible and ‘always on’ network is the foundation for providing a high level of customer service. This enables businesses and their staff to make best use of cloud applications. Look for a service that differentiates and guarantees bandwidth, giving you confidence that critical business applications will always works when demand becomes high.
  • You need a business focused service – Look for business-exclusive providers, using high capacity, low latency WAN services with uncontended high bandwidth access. This means applications perform consistently well, are fixed in a timely manner and where the needs of business users are understood. This maximizes business productivity and makes best use of staff time & resources.
  • You want to keep up with latest technology – Look for connectivity solutions that incorporate up to date technology, including optional software-defined WAN (SD-WAN) that enables dynamic traffic routing. SD-WAN changes can be implemented immediately to support seasonal or temporary business requirements: for example, during a major marketing campaign.
  • You want visibility of performance – Look for suppliers who can offer monitoring and management portals that gives customers detailed visibility of utilization, availability and inventory. Look for performance monitoring for critical business applications and systems, both cloud and on-premise. Look for real-time alerting enabling you or your selected partner to provide a great service.
  • You are looking for the best value for money – Look for connectivity solutions which are managed end-to-end, enabling the delivery of high availability services and applications backed up by SLAs specifying performance. Combining voice and data over a single connection means less cost, as well as consistent & high-quality services. Look for solutions where you only pay only for the capacity and throughput you use.

What do you need to avoid?

What business users should try to avoid:

  • Consumer broadband suppliers that don’t generally prioritize traffic
  • Highly contended connections, where lots of users are trying to access
  • Those that don’t provide SLAs
  • Suppliers who can’t offer a range of access / connection technologies
  • Those that do not provide converged voice and data services
  • Solutions offering both voice & data access that don’t offer QOS (quality of service)
  • Or the ability to purchase additional IP addresses
  • Who do not have accredited quality processes
  • Who do not offer a dedicated account manager

Real-World Examples

Solution Example #1 – A company with multiple sites and around 200-staff experiencing serious underlying service issues. Using 2-separate networks for voice & data and in need of help & update. The solution combined voice and data services over the same reliable, secure network from a single supplier. Thereby making cost savings and improving service levels by deploying a single converged network solution. The new design incorporated high-performance circuits and more standard FTTC for the same costs as the previous solution. In addition, backup connections were also provided, thereby improving the reliability too.

Solution Example #2 – Single site 50-user SME business work, with 1-HQ location and wanting to migrate away from ISDN. Relying heavily on incoming telephone calls from the public for its business, a big worry was how to seamlessly migrate. Rising call & line rental costs, lack of resilience and reliability were key issues. Establishing a new cloud-based CRM that integrated to phones without changing telephone number was also a big issues for the company. The solution included handling incoming calls via a hosted telephone system, providing software integration to the cloud-based CRM and providing a highly reliable leased line & SIP Trunks to replace the legacy iSDN. The ROI (Return on investment) was achieved by lower call costs, improved flexibility and productivity of the whole solution.

How to implement new Telecoms Connectivity:

  • IT Strategy – Think about strategy, including business & IT and where technology is going
  • Solution Design – Map out the overall solution, consider all the elements of a new IT telecoms solution
  • Stakeholders – Get everyone on-board, share your ideas and welcome comments and feedback
  • Implementation – Think about how you are going to install & set-up. How you can avoid any outage as you migrate from the old to the new systems.
  • Project Management – Have a plan and make sure you or your provider is managing it
  • Provisioning – With connectivity you need to understand timescales and the complexities of provisioning, which can often take much longer than expected
  • Statement of Works – Gives you a project scope and delivery documentation. So important for checking against progress & hand-over
  • Handover & Training – Effective user adoption is most commonly decided by how detailed the handover and training provided. If users are to get the most out of a new system, train and continually update your staff

Summarizing the benefits

  • Improve service to your customers & win more business
  • Improve user efficiency by reducing waiting times
  • Enable more flexible working and improve staff retention
  • Remove the need for IT support to maintain on-premises equipment
  • Increase the ability to respond to changing business needs
  • Improve visibility of network performance

Telecoms Connectivity Glossary

4G Backup – Use of the 4G mobile network to provide an independent access connection if the primary connection fails.

Availability – The measure of the proportion of time the network is operating, usually as a percentage, as in ‘five nines’.

Bandwidth – Bandwidth is the measure of data volume that can be transmitted. Bandwidth is frequently used to measure the speed of an internet connection and is typically measured in Mbps (Mega-bits per second). VoIP based phone conversations consume ~100Kilobits per second of bandwidth, actually quite a small amount.

Contention – Contention is where customers share a connection and is usually given as a ratio, for example, 5:1. Uncontended means the customer has exclusive use of the link. Note that there are many links in a network and that the capacity of the (bandwidth) link also affects performance.

Converged Networks – Converged networks use the TCP/IP internet protocol to carry a range of services, including computer data, telephone conversations, CCTV, internet access and many other services. VoIP based phone conversations must be treated with priority, especially in wide area networks, where delay and packet loss result in poor quality calls.

Ethernet – Ethernet based LANs (Local Area Networks) provide the base connectivity with a company premises and operate at 1Gb/s or 10Gb/s. They are built using network switches and a mix of VLANs (virtual local area networks) and IP routing to connect business users to shared on-site resources (like servers) or the internet resources (like web browsing or cloud applications). Common practice uses VLANs to separate VoIP based phone conversations from other applications.

Ethernet First Mile (EFM) – Ethernet First Mile (EFM) is an internet connection / line that provides high-speed ethernet connectivity to business users generally within 5km of the local exchange. The service runs over multiple copper wire and uses any number of pairs of cable (up to 8) to provide service speeds up to ~300Mb/s in both directions (synchronous). This service is suitable for VoIP based phone solutions. EFM offers faster symmetric speeds and better resilience than ADSL.

Fibre-To-The-Cabinet (FTTC) – Fibre-To-The-Cabinet (FTTC) is suitable for SME business customers and allows connectivity over fibre optic cable and copper cable to the Internet. The fibre cables runs from the local telephone exchange to local road-side cabinet. Standard telephone cable then provides the final connection to the business premises. This service is suitable for VoIP based phone solutions.

Fibre-To-The-Premise (FTTP) – Fibre-To-The-Premises (FTTP) is suitable for SME business customers that allows connectivity over fibre optic cable all the way from the local telephone exchange to customers business premises. This service is suitable for VoIP based phone solutions.

Firewall: Firewalls are provide internet facing security, sitting in front of your network devices, servers, and IP phones. They provide protection at the perimeter of your network and are also terms ‘gateways’. Firewalls provide filtering and blocking of unwanted data and connections, they provide visibility of your network, users, and applications being used control who can access what. VoIP based phone calls will also go via your firewall, ensuring rouge or fraudulent calls are prevented and only connected to your authorized devices / services are allows.

Five Nines – An availability of 99.999%. This is the traditional target for telecommunications connections and equates to 5.3 minutes downtime per year.

Latency – The delay on the connection. Low latency is especially important for ‘real-time’ applications such as voice or video.

Local Area Networks (LAN) – Local Area Networks (LAN) that connect users to the IT business services they need. A LAN exists within a building or campus, built using physical Cat5 and Cat6 cabling, Fibre-optic connections, workgroup and backbone routing and switching products and carry VoIP based traffic.

MPLS – Multiprotocol Label Switching: a routing technique that directs data from one node to the next based on short path labels rather than long network addresses, avoiding complex lookups in a routing table and speeding traffic flows.

PABX / PBX – PABX / PBX (private branch exchange) are multi-line business telephone systems used in a single business office or across a distributed business environment. PABX / PBX is a traditional term from the days older analogue and digital phone systems, but the term can be applied to both on-premise and hosted telephone systems used by small and medium sized business today.

PCI – Payment Card Industry Data Security Standard (PCI DSS): a security standard for organisations that handle credit cards payments (see PCI Standards website for more information).

Quality of Service (QOS) – A measure of network performance that reflects the quality and reliability of a connection. QoS data traffic policies guarantees certain amounts of bandwidth are reserved for specific applications and can be very effective where VoIP services must compete with general internet browsing and downloads. Four classes of QoS: Real Time (voice), Video, Enhanced, Default.

Resilience – The ability of a connection to work even in the presence of faults. This can be achieved through a variety of measures such as diverse routing and having backup access solutions such as 4G.

Router – Hardware or software that connects two or more networks. Functions as sorter and interpreter by looking at addresses and passing bits of information to proper destinations. Software routers are sometimes referred to as gateways. A switching/routing system that receives information packets and routes them according to pre-established protocols or the header information in the packets.

SD-WAN Software-Defined Wide Area Network – A technology that centralises network control and enables customers to manage traffic, by application, over private and public networks to improve application performance.

SLA Service Level Agreement – A contract between a service provider and its customers that specifies targets for service performance. SLA quantifies the level of service to be expected by defining what a service provider is going to provide. The definition varies at business, application or network level.

Session Initiation Protocol (SIP) – SIP is an internet communications protocol used for the set-up, maintenance and closing of real-time voice communications. SIP is at the heart of VoIP, video and messaging applications and controls voice calls over a range of applications and platforms. SIP messages can be encrypted and secured and the SIP protocol can be prioritized to enable quality of service (QoS).

UC or UCC Unified Communications and Collaboration – Applications that allow voice, video and messaging in real time. UCaaS UC/UCC supplied ‘as a service’ through hosted cloud-based applications.

Virtual Local Area Network / VLAN – A Virtual LAN is a configuration used to communicate amongst devices as if all devices were attached to the same ‘wire’ when in fact they are physically connected to different devices or LAN segments. Charlton Networks provide VLAN technology that helps segregate and control communications in an IP network.

Voice Over Internet Protocol (VOIP) – VOIP enable voice communications over the internet / company network and has enabled the convergence of communications on to a single IP network. Charlton Networks provide VoIP solutions that provide high-quality business communications.

About Charlton Networks

Charlton Networks provide a complete set of Business IT services, that provide business clients with a ‘one-stop-shop’ for all their IT needs and making their daily business lives easier. Our services include high-speed connectivity and SIP trunking that replaces traditional ISDN. We source the best connectivity solutions for your business from a range of broadband, voice-only & converged broadband, ethernet / leased line and other private bespoke point-to-point communications solutions. More details about our telecoms solutions here

Ask Tony!

Our team at Charlton Networks includes several experts in cloud-telephony and hosted cloud-based telephone systems. Tony Knock is one of these leading experts, a Horizon certified engineer and a veteran in designing & implementing cloud-based phone systems. Tony and others help maintain Charlton Networks Horizon Partner status. After reading this article, perhaps you have more questions you’d like to ask? Or perhaps review of your current telephone infrastructure, preparedness for the withdrawal of ISDN or understand any other aspect of voice telephony communications? Why not drop us a line with your question?

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