Modern business phone systems installed and supported by a Northern Ireland team. Whether you call it VoIP, a cloud phone system or simply an office phone system, we cover desk phones, mobile and desktop apps, 028 number porting, call routing and ongoing management across Northern Ireland.
Check your VoIP phone system options
028 number porting, desk phones, mobile apps and local support for Northern Ireland businesses. Serving Belfast, Lisburn and Northern Ireland, direct contact.
Drakos Systems installs and supports business phone systems for established and growing businesses across Northern Ireland, with direct support, number porting, desk phones, mobile and desktop apps and ongoing management. You deal with one person who knows your system, not a call centre.
Whether you are replacing an ageing PBX, preparing for the PSTN and ISDN switch off, moving office, adding remote workers, or just tired of a phone system that does not do what you need, we can help you move to a cloud-hosted system that works properly from day one.
A modern system covers the everyday things a business actually uses: desk phones and cordless handsets, mobile and desktop apps, call queues, ring groups, IVR menus, out-of-hours routing, voicemail to email, call recording where configured, reporting, and CRM or Microsoft Teams integration where supported. Existing 028 numbers and DDI ranges can usually be ported, and one system can run across multiple sites and remote staff under a single business identity.
Calls, apps and routing connected
No on-site server required. The phone system is hosted in the cloud and managed remotely. Add or remove users any time.
Keep your existing 028 number. We handle the porting process and set up temporary routing so calls continue during the transition.
Yealink and compatible SIP handsets supplied, pre-configured and ready to plug in. Basic models to full-colour touch-screen phones.
iOS and Android apps so staff can make and receive business calls on their mobile, using the office number, from anywhere with a signal.
Professional greeting and call menu. Route callers to the right department or person without needing a receptionist.
Ring groups, call queues, time-based routing and out-of-hours messages. Callers get handled properly even when you are busy.
Voicemail messages delivered to your inbox as audio files, so messages are less likely to be missed because someone forgot to check the voicemail.
Record calls automatically or on demand. Useful for compliance, training and resolving disputes. Stored securely and accessible when needed.
4G backup routers keep your phones working if broadband drops. Calls divert automatically to mobile as a secondary fallback.
Still using an Avaya, Panasonic, NEC, Mitel or another traditional office telephone system? Drakos Systems helps Northern Ireland businesses review existing PBX equipment, understand the replacement options and move to modern business calling where it makes sense. Whether you have analogue exchange lines, ISDN2e, ISDN30 or an existing SIP-connected PBX, we assess what you have today before recommending the next step. In some cases an existing system can be retained or adapted; in others, a cloud-hosted or modern IP system is the better long-term option.
Two approaches are common:
Businesses frequently ask us about Avaya IP Office, Panasonic KX-series, NEC SL and SV systems, Mitel, Siemens/Unify, Samsung OfficeServ, Toshiba, Alcatel-Lucent and older BT office telephone systems. These are examples of systems a business may wish to replace, not a claim of manufacturer-authorised support for every model. Compatibility, retention and migration options depend on the specific installation and any existing contracts. For a detailed walk-through, see our PBX replacement guide for Northern Ireland.
Changing phone systems does not necessarily mean changing your numbers. We can check whether your existing geographic numbers and DDIs can be ported and plan the sequence of any transfer. Porting is often included for standard ports, while complex ports may incur a charge. It depends on the current provider, number range, account details and eligibility, so we confirm the position before any cutover date is agreed.
Drakos Systems can supply and advise on different business telephone platforms rather than pushing one product:
We supply and support the full Yealink range of desk phones, cordless and DECT handsets, conference phones and headsets. The right combination depends on the number of users, your existing numbers, mobile working, locations, call handling and support requirements, so we recommend a platform after understanding how your business actually handles calls.
Not sure what phone system you currently have? Send us an enquiry with your location, approximate number of users and the model name of the existing equipment, and we will advise on an appropriate next step.
For businesses operating across Northern Ireland, Great Britain, the Republic of Ireland and other countries, we can help assess options for international telephone numbers, SIP connectivity and routing calls to the right team. Availability varies by country, number type, provider, eligibility and local rules, so we confirm what is possible for each location before preparing a proposal. If you have staff or customers in several countries, tell us where you need numbers, where calls should be answered and whether you need local presentation, inbound calling, outbound calling or all three.
We are based in the Greater Belfast and Lisburn area and work across Northern Ireland. When something goes wrong, you ring us directly. No call centre, no ticket queue, no being passed between departments. The person who sets up your phone system is the same person who supports it.
We handle the full installation, port your numbers, configure the call routing, train staff on how to use the system and stay available for questions after go-live.
Challenge: Noisy factory floor needing reliable emergency dialling, weather-resistant phones in wet environments, legacy cabling and undocumented extensions.
Delivered: Hosted VoIP with weather-resistant enclosures for factory phones, verified emergency calling, desktop and mobile apps, business Wi-Fi improvements, intelligent call routing, cabling rationalisation, full number migration and user training.
Outcome: Staff manage call routing themselves, work from anywhere, reliable factory communications, reduced maintenance overhead.
Challenge: Users across several locations and home. Existing system limited flexibility and required office-based working.
Delivered: Hosted cloud telephony, softphones, business mobile integration, auto attendants, hunt groups, call reporting, desktop and mobile apps.
Outcome: Answer business calls from any location with a consistent company number, improved reporting and simpler administration.
Challenge: Multiple telecom suppliers inherited over time, numbers never fully ported (dependent on forwarding), unclear support responsibilities.
Delivered: Infrastructure audit, number ownership verification, full number porting, removal of legacy forwarding, firewall review, QoS implementation, documentation and user training.
Outcome: Reduced monthly costs, simplified support, improved resilience, clear ownership of all numbers.
Ring us and tell us what you have. We will explain what is involved, what it will cost, and how long it will take. No pressure, no obligation.
Tell us what you have and we will come back with options and pricing. Takes 30 seconds.
When a business reports broken audio, one-way calls or phones dropping offline, the fault is often underneath the phone system rather than in the handset itself. We check the broadband path, firewall, switching and local network before blaming the hosted platform.
Common causes include SIP ALG rewriting traffic, NAT sessions expiring too quickly, registration keep-alives not matching the firewall timeout, voice sharing a busy data network without QoS, or deep packet inspection interfering with encrypted SIP and media. Where it is appropriate, we separate voice onto its own VLAN, preserve the correct DSCP markings and confirm that switches and routers are actually trusting and prioritising those packets.
Yealink, Avaya and other supported handsets can advertise or accept a voice VLAN through LLDP-MED or manual VLAN tagging. That only helps when the switch ports, DHCP options and upstream QoS policy have been designed properly. We also test failure paths, including 4G or 5G backup, call diversion and power protection, rather than assuming the cloud platform alone provides continuity.
Already have a VoIP system that is giving trouble? See VoIP support and fault-finding for existing systems.
Technical review: Prepared and reviewed by Kieran Bourquin, Drakos Systems. Last reviewed .
Yes. Your existing 028 number can be ported to the new VoIP platform. The process typically takes 5 to 10 working days once the paperwork is submitted. During the transition, calls continue to route normally so you do not miss anything.
Calls can automatically divert to mobile numbers if the system detects the office is offline. Staff can also use the mobile app over 4G. We offer 4G backup routers that kick in within seconds of a broadband outage, keeping desk phones working as normal.
Most hosted VoIP systems cost between £12 and £20 per user per month depending on the features required. Desk phones range from around £80 for a basic model to £200 for a full-colour screen handset. There is no large upfront cost as there would be with a traditional PBX.
Openreach's withdrawal of its traditional PSTN-based services, including ISDN, is scheduled for 31 January 2027. Phone systems that rely on ISDN lines need to move to a digital service before then. Cloud VoIP runs over broadband and does not depend on those lines. Check your actual line provider and its migration arrangements, because not every legacy service follows an identical cutover process. Planning the migration now avoids last-minute pressure.
Serving Belfast, Lisburn and Northern Ireland. Speak directly with the person who scopes, installs and supports your system. One point of contact from survey to go-live and beyond.