VoIP Phone Systems in Belfast
Cloud VoIP installed and supported by a Northern Ireland team. Keep your 028 number, add desk phones and mobile apps, cut your call costs. We cover all Belfast postcodes.
Drakos Systems installs and supports VoIP phone systems for businesses across Belfast, including replacements for older office telephone systems and on-site PBXs. We are based in the Greater Belfast and Lisburn area, we visit your site, we handle porting your existing 028 number where possible, we configure the system and we train your staff. When something needs fixing, you ring us directly.
VoIP runs over your broadband connection instead of traditional phone lines. It costs less per month, works on desk phones and mobile apps simultaneously, and gives you features that most traditional systems either do not have or charge extra for.
What We Install for Belfast Businesses
028 Number Porting
Your existing Belfast 028 number can usually move to the VoIP system, subject to the current provider and number status. The transfer is planned to keep calls routing throughout and minimise disruption to your customers.
Desk Phones
Yealink SIP handsets supplied, pre-configured and ready to plug in at your Belfast office. Basic models to full touch-screen phones depending on your needs.
Mobile Apps
Staff make and receive calls on their mobile using the office number. Works across Belfast, on the road, or from home. iOS and Android.
Auto-Attendant
Professional call greeting and menu. Route callers to sales, support or accounts without needing a dedicated receptionist.
Call Recording
Record calls automatically or on demand. Useful for compliance, training and resolving disputes. Stored securely and accessible when you need them.
Voicemail to Email
Voicemails delivered to your inbox as audio files. No more missing messages because nobody checked the handset.
Broadband Failover
4G backup routers keep your phones running if broadband drops. Automatic switchover, usually within seconds to a minute. Calls divert to mobile as a secondary fallback.
Ongoing Support
Northern Ireland support for your VoIP system. Add users, change routing, swap handsets, fix issues. Direct contact, not a call centre.
Calls, apps and routing connected
VoIP vs Traditional Phone Lines for Belfast Businesses
| Traditional lines (ISDN/PSTN) | VoIP | |
|---|---|---|
| Monthly cost | Rental for each line, plus call charges | A monthly charge per user, with UK calls often included |
| Adding a line | Order from BT, wait 2-4 weeks, pay installation | Add a user in the portal in minutes |
| Remote working | Only works at the office | Works on mobile app from anywhere |
| Auto-attendant | Requires separate hardware, costs extra | Included as standard |
| ISDN and PSTN retirement | Plan the move now: service on old lines may be limited | Not affected, runs over broadband |
| Call recording | Requires additional hardware | Built in, configurable per user |
The ISDN Switch-Off and Belfast Businesses
Openreach's withdrawal of its traditional PSTN-based services, including ISDN, is scheduled for 31 January 2027. If your Belfast office uses an Avaya, Panasonic or NEC phone system connected to ISDN lines, it needs a migration plan before then. Check your actual line provider and its migration arrangements, because not every legacy service follows an identical cutover process.
Two options are available:
- SIP trunk migration: replace the ISDN lines with SIP trunks and keep the existing PBX if it supports SIP and is in reasonable condition.
- Full VoIP replacement: replace the PBX entirely with a cloud-hosted system. No on-site hardware to maintain, works across desk phones and mobiles.
We can assess your existing system and tell you which makes sense. See our PBX replacement guide for Northern Ireland for detail on Avaya, Panasonic and NEC migrations.
Who Uses VoIP in Belfast
VoIP suits a wide range of Belfast businesses. Common installations include:
- Professional services firms (solicitors, accountants, surveyors) replacing ageing ISDN systems
- Retail and hospitality businesses wanting a professional call menu without a full-time receptionist
- Construction companies and contractors needing mobile apps for site staff
- Medical practices and clinics requiring call recording and queue management
- Growing businesses adding staff without wanting to order physical phone lines each time
- Multi-site businesses wanting all Belfast locations on one phone system
Why Use a Local Northern Ireland VoIP Provider
Many VoIP providers serve Belfast remotely, posting out pre-configured phones and providing phone or online support only. That works for some businesses. For others, having someone who can actually visit the site, check the broadband quality, position the phones correctly, test the coverage in each room and train staff in person makes the difference between a system that works and one that causes daily frustration.
Drakos Systems is based in the Greater Belfast and Lisburn area. We visit before we quote, we install in person, and we are reachable directly when issues come up. No call centre, no support ticket queue, no being passed between teams.
Get a Quote for VoIP in Belfast
Tell us how many users you have, what system you are replacing and what you need the phones to do. We will come back with a clear price.
Frequently Asked Questions
Can I keep my 028 Belfast number when switching to VoIP?
Yes. Your existing 028 number ports to the new VoIP platform. The process takes around 5 to 10 working days once the paperwork is in. Calls continue routing normally during the transition so you do not miss anything.
How much does VoIP cost for a Belfast business?
It depends on how many users you have, the features you need and the handsets you choose. Hosted VoIP is charged per user per month, so there is no large upfront cost as there would be with a traditional PBX system. We confirm the price in a written quotation once we know what you need.
What happens to VoIP calls if broadband goes down?
Calls can divert automatically 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 switch over automatically, usually within seconds to a minute depending on the router. A call in progress may drop, then desk phones reconnect over the backup connection.
Do you install VoIP phone systems in Belfast offices?
Yes. Drakos Systems is based in the Greater Belfast and Lisburn area and installs VoIP phone systems across all Belfast postcodes and greater Belfast. We visit site, port your numbers, configure the system and train staff on the same visit. Site surveys are arranged to suit you.
Related Pages
- VoIP phone systems Northern Ireland - full NI coverage, all features
- PBX replacement Northern Ireland - Avaya, Panasonic and NEC migration
- 4G and 5G failover routers - keep VoIP running if broadband drops
- Managed IT support Northern Ireland - pair VoIP with ongoing IT support
- All IT and telecoms services in Belfast
- VoIP vs landlines 2026 - what the difference means for your business
- ISDN switch-off Belfast guide - what Belfast businesses need to do before 2027
Serving all Belfast postcodes and greater Belfast. Speak directly with the person who installs and supports your system. One point of contact.