Intercom
Point-to-point calling between a few rooms or the gate and the house.
- Homes, villas, small shops
- 2–10 points
- No outside lines needed
Intercom & EPABX
Intercom, IP-PBX and EPABX systems for connected teams
Plan reliable internal calling, reception flow and department communication across offices, schools, hotels, buildings and campuses. Zerolink supports Matrix, Panasonic, CCL and Grandstream systems with network and entry-control integration.
Extension and call-flow planning Analog and IP options Installation and commissioning
How a call moves through your building
One system connects every desk, room and gate
Outside calls land on the EPABX or IP-PBX. Reception answers and transfers them; staff call each other by extension; the gate door station rings straight through.
Outside linesLandline, SIP trunk or mobile GSM
Gate door stationVisitor rings reception or the flat
EPABX / IP-PBX
Call controlRoutes, transfers, records and announcesReception consoleAnswers and transfers in one touch
Desks, rooms & classesDial any extension — free internal calls
Paging & announcementsSpeak to a floor or the whole site
Example: a hotel guest dials 9 for reception, the gate guard rings room 204 to confirm a visitor, and the manager pages "housekeeping to floor 2" — all on one system.
Intercom, EPABX or IP-PBX — which one fits?
Pick by how many people need to talk, whether outside lines are shared, and the cabling you already have.
EPABX
Shares a few outside lines across many extensions over existing telephone cable.
- Offices, schools, hotels
- 8–200 extensions
- Reception, transfer, paging
IP-PBX
Runs on your network (LAN/Wi-Fi) with IP phones, mobile apps and SIP trunks.
- Multi-floor & multi-branch sites
- Call recording, IVR, apps
- Works from anywhere
1Count users & linesExtensions, outside lines, door points
2Walk the siteCable routes, rack and power
3Design call flowReception rules, groups, paging
4Install & trainProgram, test and hand over
Communication designed around your workflow
The right platform depends on extension count, building layout, outside lines, reception rules, call recording, paging and whether the site uses analog or IP infrastructure.
System options
- IP-PBX and conventional EPABX
- IP phones, analog extensions and door stations
- Reception consoles, paging and announcements
Best for
- Office floors and administration blocks
- Schools, institutes and campus layouts
- Hotels, buildings and multi-room properties
Intercom and EPABX questions
Key considerations before selecting an internal communication platform.
Where are intercom and EPABX systems useful?
Intercom and EPABX systems support offices, schools, hotels, buildings, campuses and multi-room facilities that need structured internal calling and visitor communication.
Can intercom be combined with access control?
Yes. Zerolink can scope intercom with access control, CCTV, networking and broader site infrastructure.
Can I keep my existing telephone wiring?
Usually yes. A conventional or hybrid EPABX reuses existing telephone cable, and IP phones can be added later on the office network.
Can calls reach staff on their mobile phones?
Yes. An IP-PBX or a hybrid EPABX with a mobile app lets staff answer office extensions on their smartphones inside or outside the building.
Need intercom or EPABX planning?
Share your layout, users and call-flow requirements so Zerolink can frame the right communication system.