Solutions
One system that reaches back to analogue telephony and forward to IP: voice, video, conferencing and smartphone extensions across unlimited remote offices.
- Analogue and IP together
- Unlimited remote offices
- Smartphones as extensions
Overview
One system for analogue and IP together
What it covers
One fabric for voice, video and conferencing
Unified Communication offers a comprehensive solution that integrates with outdated analogue telephony systems as well as the latest IP-based communication. It enables calling beyond local extensions to unlimited remote offices, supporting not only voice but video calls, audio and video conferencing for multiple participants, and even connecting smartphones as extensions for communication on the go.
- Keeps existing analogue telephony in service alongside IP
- Calling beyond local extensions to unlimited remote offices
- Voice, video and multi-participant audio and video conferencing
- Smartphones connected as extensions for audio and video on the move
Building blocks
What a modern phone estate is made of
Deployed together or added one at a time to whatever is already installed.

IP PBX System
An IP PBX transforms telephony by using IP networks for communication within and beyond the organisation. It acts as the central hub for call routing, forwarding and voicemail, carrying voice and data locally and over the internet, with features and flexibility beyond traditional analogue systems.
- Extension dial plans, hunt groups and ring strategies
- Auto-attendant and IVR menus, with time-of-day and holiday routing
- Voicemail, voicemail-to-email and call recording
- Queues, transfer, pickup, park and conference bridges
- Call detail records: who called whom, for how long, and what it cost
- On-premises or virtualised, with extensions over LAN, VPN or the internet

Trunking
Trunks are the lines that connect VoIP systems to external networks. PSTN is the traditional phone system with analogue or digital connections; PRI is a digital trunk for high-capacity links carrying multiple voice channels over ISDN; GSM trunks reach mobile networks through cellular channels; and SIP trunking — the latest technology — carries voice as digital packets over IP for cost-efficient, scalable, flexible communication.
- PSTN analogue lines, for a small site or as a fallback path
- PRI over ISDN, carrying up to 30 concurrent channels on one E1
- GSM channels, for mobile-heavy calling and carrier failover
- SIP trunks, where capacity scales with bandwidth rather than copper
- Least-cost routing across several trunk types at once
- Automatic failover to a second trunk when a carrier drops

IP Telephony
IP telephony enables voice and video communication over IP networks, using voice and video IP phones as well as softphones — software-based phones on computers or mobile devices — integrated with conferencing, messaging and remote accessibility. It is popular in business for enhancing mobility and supporting unified communication.
- Desk phones from single-line sets to executive handsets with expansion modules
- Video IP phones for desk-to-desk calling
- Softphones on Windows, macOS, Android and iOS
- Smartphone extensions that keep the desk number working off site
- Presence, busy-lamp keys and a shared company directory
- Do-not-disturb, call forwarding and follow-me rules per user

VoIP Gateways
Gateways bridge traditional telephony and IP networks so voice calls can run over the internet. FXS connects analogue phones, FXO links to phone lines, E1/T1 supports high-capacity digital PRI connections and GSM enables VoIP via mobile networks — flexible, cost-effective communication across different network types.
- FXS ports, keeping analogue phones, fax machines and door units in service
- FXO ports, terminating existing analogue lines from the exchange
- E1/T1 for PRI, where the carrier delivers a digital circuit
- GSM gateways, routing calls out over SIM channels
- Echo cancellation and codec transcoding between legacy and IP
- A staged migration: analogue and IP running side by side, not a cut-over

SIP Speakers & PA System
SIP speakers use IP networks for announcements and music streaming, ideal for schools, offices and public spaces. They integrate with VoIP systems for remote control, enabling clear paging, emergency alerts and background music across large areas.
- Zone paging — one room, one floor, or the whole site
- Scheduled bells and announcements for schools and shift changes
- Emergency and evacuation announcements, with priority over anything playing
- Background music streamed per zone
- Paging from any desk phone extension, with no separate amplifier rack
- PoE horn and ceiling speakers, powered over the cabling already installed

Video Conferencing
Video conferencing with webcams, video IP phones, soft extensions and PTZ cameras allows versatile, high-quality communication. Integrated with the IP PBX, users join meetings by dialling an extension — a seamless setup for remote and in-office participants.
- Room systems with PTZ cameras for larger meeting spaces
- Video IP phones and desktop softphones as participants
- Dial an extension to join — no meeting links to circulate
- Multi-party audio and video bridging on the PBX itself
- Screen and document sharing alongside the call
- Recording, where policy asks for it
Before you specify
The four questions that decide the design
PSTN provides traditional analogue or digital connections, PRI is a digital trunk for high-capacity links carrying multiple voice channels over ISDN, GSM trunks route calls through cellular channels, and SIP trunking uses the internet to carry voice as digital packets — the most cost-efficient, scalable and flexible of the four.
An IP PBX uses IP networks as the central hub for call routing, forwarding and voicemail, transmitting voice and data both locally and over the internet. That gives it advanced features and flexibility a traditional analogue system cannot offer, while still integrating with the analogue handsets already installed.
It depends on what you are connecting. FXS connects analogue phones, FXO links to phone lines, E1/T1 supports high-capacity digital PRI connections and GSM enables VoIP via mobile networks. All of them bridge traditional telephony and IP networks so calls can run over the internet.
Yes. With webcams, video IP phones, soft extensions and PTZ cameras integrated with the IP PBX, a user joins a meeting by dialling an extension. The same setup serves remote and in-office participants without separate conferencing accounts.
Recently introduced
One cable, three systems
Schools, factories and offices
A single CAT6 run for CCTV, telephony and announcements
We have recently introduced a solution for educational institutions, factories and offices that uses a single CAT6 cable to serve multiple functions within the classroom. The all-in-one system includes CCTV cameras, a PBX system for communication management, and a public announcement system that can be activated by dialling a single number from any connected phone.
Announcements go to specific classrooms or groups — dial 900 for the whole of the ninth grade, 901 for 9A, and so on — and can also be broadcast through an IP-based horn speaker for larger areas such as playgrounds.
Unified communications
Still paying for lines you do not use?
Tell us how many extensions, sites and simultaneous calls you need. We will size the PBX, the trunks and the handsets around that.