IP Telephony & SIP Communication Systems · Guangzhou, China
Scenarios · video entry
A video door phone is judged at the door: how quickly a visitor can call, how clearly the resident sees them, and whether the door opens from the screen rather than from a walk down the stairs. The range documented here covers that chain from a 7-inch face-recognition station on a main entrance to a compact 86-box panel at a flat door, with indoor units that also take alarm inputs and a guard station that can watch several doors at once. This page is the range explained by what each model does, which entrances it fits and what it needs to be installed. NEXVIA designs, manufactures, supplies and commissions the system; the door phones and indoor units are manufactured by NEXVIA, including the range used throughout this design.
Pick the station by the entrance, not by the price list. A high-traffic lobby takes the i67 or i68 with a 7-inch or 8-inch touchscreen and six access methods; a cold or exposed position takes the i66 or the i64 to i61 range published from −40 °C; a compact column takes the i60 or i60K at IP65 with a rain cover; and an internal flat or suite door takes the A10W in a standard 86 box with one relay.
Inside the building, the answering side is where the money goes. An indoor unit answers the call, shows the visitor on a screen (up to a 10.1-inch 1280×800 panel), offers one-touch unlocking and carries 8 alarm inputs and 1 embedded relay for an external fire or gas alarm; a guard station such as the A308 or A320 answers for a whole lobby and integrates IP cameras for monitoring. Under the range sits a PBX publishing 24 to 1000 SIP trunks, so each entrance is an extension rather than a wire back to a switchboard.
Most retrofits come down to two published figures. Where only two-core cable exists, the PN1 converter carries network and power over the existing pair and reaches up to 1600 m for the network function without power, while PN8 and PN24 distribute up to 8 and 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 entrance count, unit count and cable survey.
An entry station is used by people who have never seen it before. Six access methods mean residents and staff rarely need the button, a numeric keypad with a directory or per-flat code reaches the rest, and the guard station or app can route anyone who is still stuck.
Deliveries arrive when the resident is out. The call is an ordinary SIP call, so it rings a group, reaches the guard station, or arrives on an app where the cloud layer is used — the point being to design the order rather than discover it at the door.
A retrofit lives or dies on the pair already in the wall. The published figures are up to 1600 m on PN1 for the network function without power and 300 m on PN8 and PN24 for network plus power; measure before committing, and use 433 MHz buttons where no pair exists at all.
A camera that is not linked, a relay that is not wired to the strike, or a lock that nobody has decided about are the usual causes of a failed handover. The relay map, the ONVIF link and the fail-safe decision belong in one document signed by the intercom, access and fire parties.
| Size band | System | Devices | Notes |
|---|---|---|---|
| Single entrance — house, villa, small office | OM20G — 24 SIP trunks; 4 analog ports if a gate line is kept | 1 entrance station (i60K / A12V / A10W), 1–4 indoor units (i501), 1–2 handsets | The OM20G is also the only model that can dial out through a 3G/4G USB modem, which suits a remote gate with no wired line. Ring groups hold up to 40 extensions. |
| Block of flats — 1 to 3 entrances, up to 60 units | OM50G — 62 SIP trunks; up to 12 analog ports across 3 interface cards | 1–3 entrance stations (i67 / i60K / A12V), 1 guard station (A308), one indoor unit per flat, 1–2 lift or barrier positions | The residential material states the system is compatible with standard IP PBX and needs no proprietary servers. A maximum number of indoor stations per system is not stated, so the unit count is confirmed on the quotation. |
| Commercial building — 4 to 8 entrances, mixed tenant and visitor traffic | OM200G — 496 SIP trunks; up to 96 analog ports on 24-line interface cards | Entrance stations per door, guard or reception stations, indoor units at reception and in executive suites, lift control where floors are restricted | 4 hot-swap card slots and gigabit Ethernet, with the option of an A330i console at the security desk carrying 8 short-circuit inputs, 1 output and an RS-485 interface. |
| Estate or campus — several buildings and phases | OM1000-UC — 1000 SIP trunks, up to 200 concurrent calls per trunk | Per-building station and unit counts repeated across phases on one dial plan, with DID numbers where entrances share a public number | SIP only, with dual hot standby (3 fixed IP addresses) and multi-site networking using unique or repeatable extension numbering. |
| Retrofit where the old cable is all that exists | OM50G or OM200G — 62 or 496 SIP trunks | New stations at the existing door positions, with PN1 converters per point and PN8 or PN24 switches per riser | PN1 carries network and power over an existing two-core cable with an external AC 100–240 V supply; the historical-building retrofit is the labelled use case for the 2-wire converter in the residential material. |
| Model | Entrance it fits | Camera, access and audio | Protection, mounting and connection |
|---|---|---|---|
| i67 | Main entrance, community, apartment and office building | 7-inch HD touchscreen; face, IC/ID card, PIN, QR code, DTMF and app; two 2 MP wide-angle cameras with automatic fill light; 3W speaker with AEC; line-out for an induction loop antenna; anti-spoofing liveness detection for images, videos and masks | Full aluminium alloy; IP66 and IK07; −20 °C to 60 °C; SIP and ONVIF; Wiegand; numeric keypad |
| i68 | Main entrance where a larger screen is wanted | 8-inch HD touchscreen; the same six access methods; two 2 MP cameras with fill light; 3W speaker with AEC; line-out for an induction loop antenna | IP66 and IK07; −20 °C to 55 °C; SIP and ONVIF; Wiegand; RC02 rain cover and EX103 flush kit available |
| i66 | Cold or exposed entrance | All-aluminium body with a colour-light keypad and a numeric keypad; two 2 MP cameras; face, card, PIN, QR, DTMF and app | IP66 and IK07 from −40 °C to 60 °C; SIP and ONVIF |
| i64 | Entrance where cards and codes are the norm | Numeric keypad; password, IC/ID card, indoor switch, DTMF and scheduled door opening; one 2 MP wide-angle camera with IR night vision; 2.5W speaker with AEC | IP66 and IK07 from −40 °C to 70 °C; SIP and ONVIF; line-out for an induction loop; TF card slot up to 128 GB; RC01 and EX102 available |
| i63 / i62 / i61 | Entrance where speed dial or a single button is enough | i63 has five speed-dial buttons, i62 one speed-dial button and i61 one speed-dial touch button; card, indoor switch, DTMF and scheduled door opening; 2 MP camera with IR night vision; 2.5W speaker with AEC | IP66 and IK07 from −40 °C to 70 °C; SIP and ONVIF; TF card up to 128 GB |
| i60 / i60K | Compact gate, column or second door | Quick call button (i60K adds an optional numeric keypad); 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; 12 V DC or PoE; 1 relay, 1 short-circuit in and 1 out; Wiegand badge |
| A10W | Flat door, suite door, service door | Three function keys; 2W speaker with echo cancellation; one relay; one short-circuit input for an external emergency button; supports KT10/KT20/KT30 wireless buttons | Standard 86 box; PoE or 12 V DC; IP54; −10 °C to 50 °C; one-click call rings the host plus the call-group extensions |
| A12V / A11V | Gate, vehicle entrance, yard door | A12V: 4 MP camera with IR night vision, 10W speaker with AEC, 1 access-control relay, 2 short-circuit inputs and 2 outputs. A11V: 4 MP camera, 5W speaker, 2 in / 1 out | IP66 and IK10 from −40 °C to 70 °C; anti-tamper alarm to the control centre; ONVIF and RTSP on the video models |
| i501 / i504 to i506W | Indoor unit in the flat or suite | i501: 3 DSS keys with one-touch unlocking or calling, 1W speaker with AEC, Wi-Fi 6 and PoE. Screened models: up to 10.1-inch 1280×800, H.264 with H.265 optional, visual call and remote door opening, 8 alarm inputs and 1 embedded relay | Wall mounted with PoE integrated; built-in 2.4G/5G Wi-Fi; one-touch family call and multi-party full-duplex voice |
| A308 / A320 | Guard or concierge 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; audio and video intercom with residents and visitors, remote door unlocking and IP camera integration | SIP; gigabit adaptive port; desk or wall bracket; push notifications to the resident indoor unit or app |
| EC20 | Lift, turnstile and floor access | 64 outputs expandable to 128; calls the lift to the first floor ahead of arrival; restricts visitors to designated floors; works with the door phones over HTTP commands | 10/100 Mbps Ethernet; RS485 and Wiegand 26/34; configured over web software; rights per card or resident |
| PN1 / PN8 / PN24 | Riser and retrofit distribution | PN1 carries network and power over an existing two-core cable; PN8 and PN24 distribute up to 8 and up to 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, PN24 in a 1U chassis |
| Requirement | Conventional analog video entry system | This IP design | What changes operationally |
|---|---|---|---|
| Cable to the entrance | A dedicated coax or multi-core video cable back to a handset in every unit | One network run to the station; indoor units are network terminals; where only two-core cable exists, PN1 carries network and power over it | Existing cable can be reused, and a new door is an extension rather than a cable to every flat |
| Image quality and review | Composite video at the handset only | 2 MP wide-angle cameras or a 4 MP camera, H.264 video over SIP, indoor screens up to 10.1-inch 1280×800, and TF card storage up to 128 GB on the door phones | Images can be stored and reviewed, not only seen live |
| Access methods | Call button only | Face, IC/ID card, PIN, QR code, DTMF and app on the face-recognition range, with anti-spoofing liveness detection; BLE unlocking on the compact models | Regular visitors and staff do not need to ring at all |
| Who answers | The flat handset, and if nobody answers the visitor waits | Indoor unit, guard station or app; the call is a normal SIP call, so it can ring a group or be forwarded | A missed call is not a lost visitor |
| Lift and floor access | A separate controller, or none | EC20 on the same system: 64 outputs expandable to 128 over RS485 and Wiegand 26/34, with rights per card or resident | Visitor access is restricted to designated floors from the same system |
| Alarms in the home | Not connected | 8 alarm inputs and 1 embedded relay on the indoor unit accept an external fire or gas alarm | The intercom point doubles as an alarm input position |
| Management across sites | Local configuration at each panel | Cloud management with three-tier roles (distributor, installer, property manager), remote diagnosis, upgrades and rebooting, temporary keys and door logs | A property manager can administer several buildings from one interface |
| Area | Device | Note |
|---|---|---|
| Main building entrance | i67 (i68 where a larger screen is required) | i67: 7-inch HD touchscreen in an all-aluminium IP66 and IK07 body, two 2 MP wide-angle cameras with fill light, six access methods, SIP and ONVIF, a Wiegand interface and anti-spoofing liveness detection. i68: 8-inch screen with the same access list. |
| Cold or exposed entrance | i66 | All-aluminium body with a colour-light keypad, two 2 MP cameras and the same six access methods, published from −40 °C to 60 °C at IP66 and IK07. |
| Entrance where cards and codes are enough | i64, i63, i62 or i61 | Card, password, 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; i63 adds five speed-dial buttons, i62 one, i61 a speed-dial touch button. IP66 and IK07 from −40 °C to 70 °C. |
| Compact gate or second door | i60 / i60K | IP65 with the rain cover, a quick call button with an optional numeric keypad on the i60K, IC card, PIN, BLE unlocking, DTMF and app entry, a 2 MP camera with IR night vision, a 1W speaker with AEC and one relay; 12 V DC or PoE. |
| Flat, suite or service door | A10W SIP mini intercom | Standard 86 box with three function keys, a 2W speaker with echo cancellation, one relay and one short-circuit input for an external emergency button; supports KT10/KT20/KT30 wireless buttons and runs on PoE or 12 V DC at IP54. |
| Inside the flat or suite | i501 or a screened indoor unit (i504 to i506W) | i501: 3 DSS keys with one-touch unlocking or calling, a 1W speaker with AEC, Wi-Fi 6 and PoE. Screened units: up to 10.1-inch 1280×800, H.264 with H.265 optional, remote door opening, 8 alarm inputs and 1 embedded relay, with KT10/KT20/KT30 button support on the wireless models. |
| Guard or concierge desk | A308 (A320 for a larger desk) | A308: 7-inch 1024×600 Android screen with a 5 MP adjustable camera and a bracket for desk or wall. A320: 10.1-inch 1280×800 with an 8 MP camera and privacy cover; both answer entrance calls, release doors, integrate IP cameras and push notifications to residents. |
Match the model to the exposure and to the traffic. A high-traffic lobby takes the i67 or i68 with a touchscreen and six access methods; a cold or wet position takes the i66 or the i64 to i61 range, published from −40 °C; a compact column takes the i60 or i60K behind a rain cover; and a flat or suite door takes the A10W in a standard 86 box.
As a relay action at the station or the answering device. The A10W and the i60 series each carry one relay, the A12V carries 2 short-circuit outputs and 1 access-control relay, the i16S/i16SV carry 2 in and 2 out, and the EC20 drives 64 outputs expandable to 128 for lifts and floors.
Yes. The door phones are published as compatible with SIP and ONVIF, the guard stations integrate IP cameras for monitoring, and indoor units support H.264 with H.265 optional at 1080p on several models. Where the site runs a VMS, the call and its camera can be viewed and reviewed together.
The call follows the same rules as any other SIP call: it can ring a group, be forwarded to a second indoor unit or to the guard station, or reach an app where the cloud layer is used. Nothing about a door call is special-cased out of the dial plan.
Where the pair is sound, yes. The PN1 2-wire 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 switches distribute up to 8 and up to 24 devices at a maximum connection distance of 300 m for network plus power.
Published accessories exist for the positions that need them: RC01 and RC02 rain covers, EX101, EX102 and EX103 flush-mounting kits, and the DS105 desktop swivel bracket for the screened indoor units.
It depends on the model, and the answer is published where it exists: the compact door phones and the A10W accept PoE or 12 V DC, the indoor units are wall mounted with PoE integrated, and for the door-phone family the materials state SIP and ONVIF rather than a power method.
Which range fits which entrance
| Site condition | Range | Why | Published limit to check |
|---|---|---|---|
| Sheltered lobby with mixed residents and visitors | i67 / i68 | Face recognition with liveness detection plus card, PIN, QR, DTMF and app entry | IP66 and IK07; −20 °C to 60 °C (i67), −20 °C to 55 °C (i68) |
| Cold climate or direct weather | i66, i64 to i61 | Published from −40 °C with IP66 and IK07 and IR night vision | Camera 2 MP; speaker 2.5W to 3W |
| Compact gate or second door | i60 / i60K | Small body with a rain cover, BLE and IC card entry | IP65; 1W speaker; one relay |
| Suite door inside a safe area | A10W | Standard 86 box with a relay for the strike and button support | IP54; PoE or 12 V DC |
| Gate with vehicles and weather | A12V | 10W speaker, 4 MP camera, IK10 die-cast body and anti-tamper alarm | IP66; 2 SIP lines; power confirmed on the quotation |
Match the range to the entrance before matching the price list: the rating, the speaker power and the access methods decide whether residents trust the door.
A video door phone releases a lock, and a lock release has to be legal. Whether the strike fails open or closed, whether an internal release is required, how the entry system coexists with the fire panel and how a means of escape is kept clear are local code determinations, often involving more than one authority. The published equipment provides the contacts — one relay on the A10W and the i60 series, 2 short-circuit outputs on the A12V, 2 in and 2 out on the i16S/i16SV, 64 to 128 outputs on the EC20 — but the release policy and the fail-safe behaviour are site decisions. Confirm them with the fire and access-control advisers before the strike is specified, and this page makes no certification claim.
A video door phone creates personal data by design: face templates on the face-recognition range, images stored on a TF card up to 128 GB, door logs, temporary keys and app notifications. What may be collected, how long images and logs may be kept, who may export them and what notice residents, tenants and visitors receive are governed by the applicable data-protection law and are the building owner responsibility. The equipment supports the record; it does not decide the policy. Write the retention rule and the notice wording into the building procedure before the cameras are enabled, and review them whenever a new function is switched on.
Not every model in this range is PoE: the compact door phones and the A10W accept PoE or 12 V DC, indoor units are wall mounted with PoE integrated, and the door-phone family states SIP and ONVIF rather than a power method, 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 and A11V, IP66 with IK07 on the face-recognition range, IP65 with a rain cover on the i60 series. Keep signal and power cabling separated where the local wiring rules require it, earth the equipment room, and label both ends of every control pair so the next alteration is safe.
The two-core retrofit route is the documented answer for an old building, but its limits are physical: PN1 reaches up to 1600 m for the network function without power, while PN8 and PN24 reach 300 m for network plus power and carry 8 or 24 devices. Cable classes, separation from mains, containment and the permitted mounting heights for entry panels are set locally and differ by country. A compliant retrofit is one where the reused pairs were measured and documented and the installation was checked against the local wiring code by the site own contractor — treat this page as the technical input to that check rather than as its conclusion.
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: video door phone · video door entry system · video intercom system · video entrance system · commercial video intercom system with door release
All IP telephony, intercom and paging equipment in this design is supplied and integrated by NEXVIA.
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Face recognition and six access methods on a 7-inch touchscreen door phone.
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An outdoor station for gates and entrance posts, in audio and video versions.
Carries network and power over existing two-core cable, for retrofit work.
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