IP Telephony & SIP Communication Systems · Guangzhou, China
Scenarios · commercial buildings
A commercial building has an entry problem that changes by the hour: at 9 a.m. it is 200 staff through one door, at noon it is a visitor who has never been there before, and at 8 p.m. it is a cleaner with a code and nobody on reception. The design on this page puts every one of those doors on one SIP system with the building phones, so the reception console, the tenant extension and the door station all speak the same dial plan. It suits office buildings, business parks, clinics, banks and mixed-use blocks. NEXVIA designs, manufactures, supplies and commissions the system; the terminals are manufactured by NEXVIA, including the range used in this design.
Size a commercial building intercom on doors and answering positions, not on floor area. A 6-floor office building typically runs 1 main entrance, 1 staff entrance, 1 loading or service door, 1 car-park gate and 1 to 2 lift lobbies — 4 to 6 entrance extensions — answered at reception on an X210i with 106 DSS keys or an A330i with 116 keys, plus a door extension per tenant suite where a suite has its own door.
Keyless entry is the published capability, not a promise. The i67 and i68 offer six access methods — face, IC/ID card, PIN, QR code, DTMF and app — with anti-spoofing liveness detection against images, videos and masks, and they carry SIP and ONVIF plus a Wiegand interface. The i64 to i61 range keeps card, password, indoor switch, DTMF and scheduled opening, with a 2 MP camera with IR night vision and TF storage up to 128 GB.
The building decides the wiring. Where a door has only two-core cable, the PN1 converter carries network and power over the existing pair up to 1600 m for the network function without power; several points on one run use PN8 (up to 8 devices) or PN24 (up to 24 devices) at a maximum connection distance of 300 m for network plus power. Prices are not published on this site — every building is quoted per door count, tenant count and cable survey.
A main entrance has to be fast at shift change and secure for the rest of the day. Face, card and QR entry let staff and regular visitors pass without queueing at an intercom button, while the button and the app remain for everyone else.
Lunch, night shift and public holidays leave the desk empty but the door busy. Ring groups, group pickup across up to 32 departments and a queue of up to 20 waiting calls keep the entrance answerable, and off-hours routing sends the call to whoever is on duty.
Couriers find the loading bay, not the reception desk. Because the bay station is an extension in the facilities call group, the delivery is transferred rather than refused — and the 2 short-circuit outputs let the barrier or shutter be released during the call.
Buildings are re-let and re-partitioned. Adding a suite door means a station, a cable run and a ring group, not a new access-control system; the same applies to a second card reader at a door that already has a station.
| Size band | System | Devices | Notes |
|---|---|---|---|
| Small office or clinic — 1 to 2 doors | OM20G — 24 SIP trunks; 4 analog ports if a legacy door line is kept | 1–2 entrance stations (A10W / i60K), 1 reception phone (X301G / V61G), 4–10 desk phones | The OM20G is the only model in the range that can dial out through a 3G/4G USB modem, which suits a temporary site cabin or a gate with no wired line. |
| Single-tenant office building — 2 to 4 doors, up to 80 staff | OM50G — 62 SIP trunks; up to 12 analog ports across 3 interface cards | 2–4 entrance stations (i67 / A12V / A10W), 1 reception console (X210i), 20–80 desk phones, 2–6 corridor or lobby speakers | Ring groups hold up to 40 extensions on this model, so a door group that rings reception plus two managers fits comfortably. |
| Multi-tenant building — 4 to 8 doors, 5 to 20 suites | OM200G — 496 SIP trunks; up to 96 analog ports on 24-line interface cards | Per-door entrance stations, one suite door extension per tenant, a reception console per floor or per wing, lobby and lift-lobby speakers | 4 hot-swap card slots, gigabit Ethernet and single or dual AC/DC power. Up to 32 departments for group pickup and up to 60 extensions in a ring group at this size. |
| Business park or campus — several buildings | OM1000-UC — 1000 SIP trunks, up to 200 concurrent calls per trunk | The per-building counts repeated, one guard or reception position per building, a shared dial plan with DID numbers per tenant where needed | SIP only, with dual hot standby (3 fixed IP addresses) and multi-site networking using unique or repeatable extension numbering. |
| Retrofit of an existing building | OM50G or OM200G — 62 or 496 SIP trunks | Entrance stations at the existing door positions, PN1 converters where no data cable exists, existing analog handsets terminated on FXS ports during a phased changeover | PN1 carries network and power over an existing two-core cable; the door stations accept PoE or 12 V DC on the compact models, and the frame positions can be reused as analog extensions in the meantime. |
| Model | Where it goes | Access, audio and camera | Protection and connection |
|---|---|---|---|
| i67 / i68 | Main entrance, high traffic | Face, IC/ID card, PIN, QR code, DTMF and app; two 2 MP wide-angle cameras with fill light; 3W speaker with AEC; 7-inch or 8-inch touchscreen; line-out for an induction loop | IP66 and IK07; −20 °C to 60 °C (i67) and −20 °C to 55 °C (i68); SIP and ONVIF; Wiegand; anti-spoofing liveness detection |
| i64 / i63 / i62 / i61 | Staff door, side entrance, delivery door | Password, IC/ID card, indoor switch, DTMF and scheduled opening; one 2 MP camera with IR night vision; 2.5W speaker with AEC; TF card up to 128 GB | IP66 and IK07, −40 °C to 70 °C; SIP and ONVIF |
| i60 / i60K | Compact column or second door | IC card, PIN (i60K), BLE unlocking, DTMF and app; 2 MP camera with IR night vision; 1W speaker with AEC | IP65 with the rain cover; 1 relay, 1 short-circuit in and 1 out; 12 V DC or PoE |
| A12V | Loading bay, car-park gate, external door | 4 MP camera with IR night vision; 10W speaker with AEC; 2 short-circuit inputs and 2 outputs; anti-tamper alarm to the control centre | IP66 and IK10, −40 °C to 70 °C; ONVIF and RTSP on the video model |
| A11 / A11V | Service door and goods entrance | A11V: 4 MP camera with IR night vision; 5W speaker with AEC; 1 access-control relay; 2 short-circuit inputs and 1 output | IP66 and IK10, −40 °C to 70 °C; anti-tamper alarm to the control centre |
| A10W | Suite door, meeting-room door, 86-box position | Three function keys; 2W speaker with echo cancellation; one alarm input for an external emergency button; one-click call rings the host plus the call group | Standard 86 box; PoE or 12 V DC; IP54; −10 °C to 50 °C |
| A308 / A320 | Reception and security desk | A308: 7-inch 1024×600 screen with a 5 MP adjustable camera. A320: 10.1-inch 1280×800 with an 8 MP camera and privacy cover; integrates IP cameras for monitoring | SIP; gigabit adaptive port; desk or wall bracket; push notifications |
| X210i / A330i | Reception answering and paging position | X210i: 106 DSS keys across three screens with a gooseneck microphone. A330i: 116 DSS keys, 10.1-inch touchscreen, 92 dB speaker, 8 short-circuit inputs, 1 output and RS-485 | Dual Gigabit ports with integrated PoE; X210i Bluetooth 4.2; A330i Android 14 with a built-in broadcast system |
| EC20 | Lift, turnstile or floor access | 64 outputs expandable to 128; calls the lift to the first floor ahead of arrival; restricts visitors to designated floors; rights per card or resident | 10/100 Mbps Ethernet; RS485 and Wiegand 26/34; configured over web software |
| PN1 / PN8 / PN24 | Retrofit riser or floor distribution | PN1 carries network and power over an existing two-core cable; PN8 and PN24 distribute up to 8 and 24 two-wire devices | PN1: up to 1600 m for the network function without power, external AC 100–240 V. PN8 / PN24: 300 m for network plus power, built-in AC 100–240 V |
| Requirement | Conventional commercial entry system | This IP design | What changes operationally |
|---|---|---|---|
| Visitor at reception | A dedicated entry handset beside the telephone, wired to one door | The entrance station is a SIP extension answered on the reception console or the desk phone, and it can ring a group | One answering position, one set of call records, one dial plan |
| Keyless entry for staff | Separate access-control terminals per door, managed locally | Face, card, PIN, QR, DTMF and app entry on the door stations themselves, with the EC20 driving lift and floor rights over RS485 and Wiegand 26/34 | Door and lift rights are designed together instead of in two systems |
| Deliveries and the loading bay | A bell, or a phone call to a number nobody answers | The A12V at the bay is an extension in the facilities call group, with 2 short-circuit inputs and 2 outputs for the barrier or shutter | A delivery is a call that can be answered, transferred and logged |
| After-hours and cleaners | A keyholder with a physical key and a list on paper | Scheduled opening is published on the i64 to i61 range, and door logs, temporary keys and push notifications come from the cloud layer | Access can be reviewed after an incident from a record rather than from memory |
| Adding a door | New panel, new controller, new cabling back to a dedicated unit | A SIP extension, a network run and a place in a call group | A new tenant entrance is a configuration change |
| Reception cover at lunchtime | The handset rings the empty desk | Ring groups in sequential, rotating or simultaneous mode, group pickup across up to 32 departments, and up to 20 waiting calls in a queue | A caller reaches a person rather than a ringing desk |
| Records and audit | Door-side log only, on the access controller | Door logs and door-phone image storage up to 128 GB on a TF card; call detail records pushed to an external server on port 1809 | Doors and calls can be reviewed on the same incident timeline |
| Area | Device | Note |
|---|---|---|
| Main entrance | i67 or i68 face-recognition door phone | IP66 and IK07 with two 2 MP cameras with fill light, six access methods, SIP and ONVIF, a Wiegand interface and anti-spoofing liveness detection. i68 is the larger-screen version with the same access list. |
| Staff entrance or side door | i64 to i61 video door phone | Password, IC/ID card, indoor switch, DTMF and scheduled opening with one 2 MP camera with IR night vision, a 2.5W speaker with AEC and a TF card slot up to 128 GB; IP66 and IK07 from −40 °C to 70 °C. |
| Loading bay, car-park gate and external doors | A12V outdoor intercom (A11V for a sheltered goods entrance) | A12V: 4 MP camera, 10W speaker with AEC, 2 short-circuit inputs and 2 outputs, IP66 and IK10 from −40 °C to 70 °C. A11V: 4 MP camera, 5W speaker, 2 in / 1 out, same rating. |
| Tenant suite doors and meeting rooms | A10W SIP mini intercom | Standard 86 box with three function keys, a 2W speaker with echo cancellation, one relay and one alarm input for an external emergency button; one-click call rings the host plus the call group. |
| Reception answering and paging | X210i console (A330i for a security desk) | X210i: 106 DSS keys across three screens, gooseneck microphone, group broadcasting, 20 SIP lines. A330i: 116 DSS keys, 10.1-inch touchscreen, 92 dB speaker, 8 short-circuit inputs, 1 output and RS-485. |
| Lobby, lift lobby and car park | Lobby and external paging: A212 wall or A201 ceiling speaker; A513W for a combined camera and speaker position | Speaker family supports up to 20 multicast zones with prioritisation. A212 publishes 8 Ω with up to 15 W class D output and talkback (PoE 8 W / PoE+ 15 W); the A201 rated output is printed two ways in the source, so its wattage is confirmed on the quotation. |
| Lift, turnstile and floor gates | EC20 IP elevator access controller | RS485 and Wiegand 26/34, 64 outputs expandable to 128, web configuration; calls the lift to the first floor ahead of arrival and restricts visitors to designated floors, with rights per card or person. |
Count doors that a person can arrive at, then subtract the ones that are alarmed and never used. A six-floor building usually lands at 4 to 6: main entrance, staff entrance, service or delivery door, car-park gate and one or two lift lobbies.
The face-recognition range is built for that. Face, IC/ID card, PIN, QR code, DTMF and app entry are all published on the i67 and i68, with anti-spoofing liveness detection against images, videos and masks — so a staff member can walk in on face recognition while a visitor uses a QR code or the intercom.
The call moves rather than stopping. Ring groups distribute calls sequentially, in rotation or simultaneously; group pickup lets a colleague answer from the next desk across up to 32 departments; and up to 20 calls can wait in a queue with a prompt instead of failing.
As an extension with contacts, not as a bell. The A12V outdoor intercom carries a 10W speaker with echo cancellation, a 4 MP camera with IR night vision, 2 short-circuit inputs and 2 outputs, and it is rated IP66 and IK10 from −40 °C to 70 °C.
Yes, and that is the design. Every door station, guard station and console registers to the same PBX as the desk phones, so the doors inherit the dial plan, ring groups, recording and call records of the rest of the building.
The EC20 IP elevator access controller drives 64 outputs expandable to 128 over RS485 and Wiegand 26/34, can call the lift to the first floor ahead of arrival and restrict visitors to designated floors. It is configured over web software and works with the door terminals over HTTP commands.
Less than a conventional replacement, if the existing cable is reusable. The PN1 converter carries network and power over an existing two-core cable up to 1600 m for the network function without power, and the PN8 and PN24 2-wire switches distribute 8 and 24 devices at a maximum connection distance of 300 m for network plus power.
Access methods and the interfaces behind them
| Method | Where it is published | Interface named in the materials |
|---|---|---|
| Face recognition | i67, i68, i66 with anti-spoofing liveness detection | Wiegand interface on the door phone; SIP and ONVIF protocols |
| IC/ID card | i67, i68, i66, i64 to i61, i60, i60K | Wiegand; card rights assigned at the door or through the cloud layer |
| PIN and QR code | i67, i68, i66 (QR), i64 to i61 (password), i60K (PIN) | Keypad or touchscreen entry, DTMF dialling published across the range |
| App and BLE | i60, i60K (BLE unlocking), app entry published on the residential range | Cloud layer with temporary keys, door logs and push notifications |
| Scheduled opening | i64, i63, i62, i61 | Configured on the door phone; used for cleaners and fixed daily access |
| Lift and floor rights | EC20 elevator access controller | RS485 and Wiegand 26/34; 64 outputs expandable to 128; HTTP commands with the door phones |
Access methods are published per model in the solution material; the interface that carries them to another system is the one named in the table. Confirm the final method list per door on the quotation.
A commercial door release has to satisfy the fire strategy as well as the security policy: whether the strike fails open or closed, whether an internal release is required, and how the entry system coexists with the fire panel and the means of escape. Those are local code determinations, often involving two authorities — the building fire adviser and the local authority. The published material records no certification for these products and this page makes no compliance claim. Keep the entry system separate from the life-safety circuit and get the release arrangement signed off before the hardware is ordered.
The access-control side of this design uses named interfaces rather than proprietary cabling: RS485 and Wiegand 26/34 on the EC20, a Wiegand interface on the face-recognition door phones, and short-circuit inputs and relay outputs on the intercom stations (A12V 2 in / 2 out, A11V 2 in / 1 out, A10W 1 in / 1 out with a built-in relay, A330i 8 in / 1 out plus RS-485). Keep signal and power cabling separated where the local wiring rules require it, earth the equipment room as the installation diagram shows, and label both ends of every control pair.
Face templates, card numbers, door logs, temporary keys and door-phone images are personal data in most jurisdictions. What may be stored, for how long, who may export it, and what staff and visitors are told are decisions for the building owner under the applicable data-protection law. The equipment supports the record; it does not decide the policy. Write the retention rule and the notice wording into the building operating procedure before the system goes live, and review it whenever the camera or face-recognition functions are enabled.
PoE is the default supply on the network side but it is not universal in this range: the compact door phones and the A10W accept PoE or 12 V DC, and the door-phone family states SIP and ONVIF rather than a power method in the published materials, so power is confirmed per model on the quotation. Outdoor positions must match the site — IP66 and IK10 from −40 °C to 70 °C on the A12V, IP65 with a rain cover on the i60 series, IP66 and IK07 on the face-recognition range. Confirm the mounting position against the published rating rather than assuming a porch counts as indoors.
We have not published a named reference project on this page. The site does not carry customer names or installation records until the client confirms in writing which projects may be made public.
Page author: NEXVIA EngineeringPublished:Last updated:
Covers: building intercom · building entry system · building entry systems · commercial door entry system · keyless entry for office buildings
All IP telephony, intercom and paging equipment in this design is supplied and integrated by NEXVIA.
Running an existing platform
Replacing an older system
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Send us the site type, the number of extensions or rooms and the areas to cover — we will come back with a configuration and quotation.
Six facts build a configuration: site type, extensions or rooms, simultaneous calls, areas to cover, existing lines and the documents you already hold. Send as many as you know — nothing has to be final before the first reply.
