That is the job of the Fanvil i31S. It is a SIP video door phone with a call button, camera, speaker, microphone, RFID/IC card access, relay output, and PoE network connection. It calls a SIP extension the same way an IP phone calls another extension. Reception can answer from a desk phone. A guard room can answer from an indoor station. A remote office can receive the call through the PABX call route. For Dubai access-control projects, that matters because the door device becomes part of the voice network rather than a separate bell circuit.

Vector Digital Systems LLC supplies the Fanvil i31S from Dubai for ELV contractors, PABX installers, villa intercom work, office fit-outs, warehouses, and multi-site projects. We quote project quantities, stage the device before dispatch where the PABX details are provided, and support UAE supply and installation across Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah, and Umm Al Quwain. Supply from Dubai since 2009.

What the Fanvil i31S is built to do

The i31S is an IP video door phone for entrance communication and access control. It is not just a camera and it is not just a call button. It combines SIP voice, video, card access, relay control, and door-open records in one outdoor unit. In a typical Dubai office or villa compound, the i31S sits at the gate or entrance door, registers to the PABX as an extension, and calls reception, security, or a hunt group when a visitor presses the button.

The camera is a 1/2.7-inch colour CMOS sensor with 2 megapixels. Video uses H.264, with 1280 × 720 main stream at 25 fps and 704 × 576 sub-stream at 25 fps. The viewing angle is 112° horizontal and 84° vertical, which is useful at a gate because the visitor may not stand perfectly in front of the unit. The person answering can see the visitor before releasing the door.

Audio is handled through the built-in speaker and microphone with echo cancellation. Codec support includes G.711a/u, G.723.1, G.726-32K, G.729AB, and G.722. In plain language: the i31S can register to normal SIP phone systems used in UAE offices, including systems already carrying Fanvil desk phones. When the door call rings, it behaves like a call from another extension, but with video and door-release logic added.

The device is rated IP65 for dust and water protection and IK10 for impact resistance. That matters in UAE installations. Outdoor intercoms sit under shade, near dust, near garden water, near loading bays, and sometimes near public entrances where the button gets hit hard all day. The i31S is specified for -40°C to +70°C operating temperature, so the hardware rating is suitable for Dubai heat when the unit is installed with sensible shade and cable protection.

2 SIP lines — what that means on a door phone

The Fanvil i31S supports 2 SIP lines. On a desk phone, SIP lines are often confused with simultaneous trunk calls. On a door phone, the meaning is simpler: the device can hold SIP account registration and call-handling capacity for entrance communication. It is usually registered as one extension on the PABX, then programmed to call one or more destinations when the button is pressed.

A villa might route the button to the indoor station first, then to a mobile extension after office hours. A warehouse in DIP might route it to the guard desk during working hours and to the duty manager after closing. A corporate office in DIFC might ring reception first, then a security hunt group if no one answers. The SIP line count gives the unit enough account and call appearance capacity for these normal entrance flows. It does not mean two visitors can hold two separate full door conversations at the same time through one physical door station.

Access control: card, password, DTMF, and indoor switch

The i31S supports four common access methods: DTMF door release, password, RFID/IC card, and indoor switch. For a PABX installer, DTMF is the familiar part. A staff member answers the door call from an extension and presses the programmed key sequence to trigger the relay. The door opens without running a separate intercom handset to the reception desk.

For access-control projects, the card capacity is the number to notice. The i31S supports up to 5,000 RFID/IC cards, 5,000 remote access list entries, and 200,000 door-open records. That puts it beyond a simple villa bell. It can fit a staff entrance, shared office door, small residential building, warehouse gate, or service entrance where a proper record of access matters.

The relay rating is 1 relay with maximum DC30V/1A or AC125V/0.5A. In real projects, that means the lock type, power supply, exit button, fire alarm release requirement, and access-control wiring must be checked before quoting. We ask for the lock type and door schedule before dispatch, because the phone, relay, and lock must be matched correctly on site.

Where we see the i31S specified in UAE projects

The most common i31S enquiry is not a single-desk retail purchase. It is a BOQ line. An ELV contractor has a villa gate intercom schedule. A PABX installer is replacing an analogue entrance panel during a phone-system upgrade. A warehouse wants visitors at the loading gate to call the office extension. A systems integrator is matching Fanvil door stations with Fanvil desk phones for one vendor family across the site.

For villas in Dubai and Sharjah, the call route is usually gate to indoor station or gate to reception extension, with DTMF opening. For offices in Business Bay, JLT, and DMCC, the entrance call often rings a front-desk IP phone and records the event through the access-control flow. For JAFZA, Al Quoz, and DIP warehouses, the important detail is outdoor placement: shade, cable protection, and a call route that still works when the warehouse floor is noisy.

Vector Digital Systems handles the Fanvil side: supply, SIP registration, PABX call route guidance, test calls, and handover notes for the installer. Where the job needs a wider Fanvil phone deployment, we pair the entrance unit with reception and staff phones from the Fanvil IP phone range and the office PABX plan.

Mounting and site placement

The i31S supports wall mounting and flush mounting. Wall mounting is common on gate pillars, warehouse entrances, and temporary site offices because the unit is easier to install and service. Flush mounting looks cleaner for villa entrances and finished reception walls, but it needs coordination before the contractor closes the wall or cladding.

For Dubai heat and dust, we prefer a shaded position wherever possible. The device rating is strong, but good placement still matters. Avoid direct sprinkler spray, avoid the lowest point where water sits, leave service access for the cable gland, and check the camera height before final fixing. A door phone installed 20 cm too low gives a perfect view of shirts, not faces.

Power and network truth for the Fanvil i31S

The Fanvil i31S supports PoE 802.3af and also supports 12V DC input. For most Dubai office and villa projects, PoE is the cleaner route: one Cat6 cable from the PoE switch or PoE injector carries data and power to the door phone. No small adapter at the gate pillar. No separate power point exposed near the entrance.

The network port is 10/100M RJ45. That is normal for a door phone. It is not a PC passthrough desk phone, so Gigabit is not the deciding point here. The deciding points are PoE budget, cable distance, outdoor cable protection, VLAN plan, PABX registration, and whether the video stream is required at the answering device.

The i31S also supports DHCP, static IP, PPPoE, primary and secondary DNS, SNTP, STUN, SRTP, QoS with 802.1p/q and DSCP, and HTTP/HTTPS web management. For a managed office network, we normally give the door phone a reserved IP, place it in the voice or security VLAN where required, and test calls to the PABX before dispatch.

Support status for existing i31S projects

The Fanvil i31S is still an important model in UAE project search because many BOQs, old villa schedules, and service tickets name it exactly. Fanvil lists the i31S SIP Video Door Phone on its official EOL page. That does not make the installed base disappear. It means the purchase discussion must be handled honestly: quote the exact model where stock or project history allows, confirm availability before committing, and document the status clearly for procurement.

For existing installations, the practical questions are different from a new-fit-out phone page. Does the site already have i31S devices? Is the contractor adding one more matching unit? Is the old configuration file available? Is the PABX extension still active? Is the lock relay wired correctly? Is the issue with the network, the power feed, the card list, or the PABX call route?

Platform compatibility in Dubai PABX projects

The i31S uses standard SIP RFC3261 and IP/RTP/RTSP protocols, so it is designed to work with normal SIP platforms used by UAE offices and integrators. In project work, we see it connected to 3CX, Asterisk-based systems, Grandstream UCM, Yeastar, and SIP-capable hosted PABX platforms. The door phone registers as an extension, then its call button is mapped to a destination such as reception, security, an indoor station, or a ring group.

Etisalat and du matter at the trunk side, not because the door phone needs a public trunk directly. The usual Dubai design is: i31S registers to the office PABX, the PABX handles the call route, and the licensed Etisalat or du SIP service handles outside calling where needed. For internal gate-to-reception calls, no public call is needed at all.

During staging, Vector Digital Systems can apply the network settings, register the extension, set the call destination, configure DTMF opening where the lock design supports it, load access data supplied by the client, and make test calls before dispatch. For multi-site work, the same template can be repeated across villa compounds, branch offices, warehouses, and free-zone fit-outs.

Fanvil i31S, i20S, i32V, or i60K — how to read the BOQ

For wider entrance designs, pair the door phone with a Fanvil indoor station, reception desk phone, or PABX call route. See the Fanvil range comparison for office handsets that can answer door calls.

Pricing, supply, and staging from Dubai

Fanvil i31S pricing is quoted in AED after availability is checked. We do not publish fixed prices because project quantities, mounting type, PSU requirement, lock-side accessories, delivery, VAT, and staging scope change the quote. A villa gate job is not the same as a 14-entrance warehouse project.

For contractors, we can quote the i31S as supply only, supply with staging, or supply and installation. For project quantities, the quote can include extension registration details, call-route notes, card/access-list handling, relay settings, and test-call procedure. FOB Dubai export quotes are available for resellers and system integrators outside the UAE.

Frequently asked questions

Will the Fanvil i31S work with our 3CX, Grandstream UCM, or Yeastar system?

Yes. The i31S is a SIP video door phone and registers to standard SIP platforms such as 3CX, Grandstream UCM, Yeastar, and Asterisk. We configure it as a PABX extension, set the button destination, and test the door call during staging where access credentials are supplied.

Does the Fanvil i31S come with a power adapter, or do I need PoE?

The i31S supports PoE 802.3af and 12V DC input. For project supply, we do not assume the adapter is inside the box unless the pack is confirmed. If the site has no PoE at the gate, we quote the PSU or power plan with the same delivery.

What does 2 SIP lines actually mean — can two visitors call at once?

No. On the i31S, 2 SIP lines means SIP account and call-handling capacity for door-phone communication. In normal use, one entrance unit calls one destination or ring group when the button is pressed. It does not turn one physical door station into two separate visitor call points.

Fanvil i31S vs i20S — what is the difference?

The i31S is a SIP video door phone with a 2MP camera. The i20S is for audio door-phone requirements. Choose i31S when reception or security must see the visitor before opening the door; choose i20S only when voice access is enough.

Can the Fanvil i31S open our gate or door lock?

Yes, the i31S has one relay rated up to DC30V/1A or AC125V/0.5A. The final design depends on the electric lock, exit button, lock power supply, and fire-release requirement. We check the door schedule before quoting lock-side accessories.

Can we use RFID or IC cards with the Fanvil i31S?

Yes. The i31S supports RFID/IC card access with up to 5,000 cards, plus 5,000 remote access list entries and 200,000 door-open records. That makes it suitable for villa gates, staff entrances, warehouses, and shared office access points.

Does Vector Digital Systems configure the Fanvil i31S before delivery?

Yes. We can stage the i31S before dispatch: IP settings, SIP registration, button destination, DTMF opening, access settings where provided, and test calls. For project quantities, we label each unit by site, entrance, or floor.

Is VoIP legal in the UAE and will this work with Etisalat or du?

Business VoIP over licensed operators is standard in the UAE under TRA regulation. The i31S normally calls internally through your PABX; Etisalat or du SIP services matter when the wider phone system needs outside calling through licensed business trunks.

Is the Fanvil i31S covered under Fanvil warranty in the UAE?

Fanvil warranty handling depends on stock status, serial number, supply route, and EOL support terms. Vector Digital Systems handles warranty coordination from Dubai for units supplied through us and confirms the warranty position before project supply.

Who is the supplier of Fanvil i31S in Dubai?

Vector Digital Systems LLC is an authorised Fanvil supplier in Dubai, UAE, operating since 2009. We supply Fanvil i31S door-phone projects with staging, provisioning, installation support, warranty coordination, and official supplier documentation for procurement teams, ELV contractors, PABX installers, and system integrators.

What is the best SIP video door phone for a villa gate in Dubai?

For a BOQ that names Fanvil i31S, the i31S is the exact model to quote: 2 SIP lines, 2MP camera, PoE 802.3af, IP65, IK10, RFID/IC card access, and relay door release. For a new villa-gate design, share the gate type, lock type, PABX platform, and answering point, and we confirm the Fanvil door phone that fits the site.

Does Vector Digital Systems export Fanvil i31S from Dubai?

Yes. We export Fanvil door phones from Dubai to telecom resellers, PABX installers, ELV contractors, and system integrators across Saudi Arabia, Oman, Qatar, Kuwait, Kenya, Tanzania, Uganda, Nigeria, Ghana, and Pakistan. FOB Dubai pricing is available with commercial invoice, packing list, and certificate of origin.

UAE coverage — all seven emirates

Vector Digital Systems supplies and installs Fanvil i31S door-phone projects across Dubai, Abu Dhabi, Sharjah, Ajman, Ras Al Khaimah, Fujairah, and Umm Al Quwain. We support villa gates, office entrances, warehouses, staff doors, access-control upgrades, and PABX replacement projects.

Dubai project areas include Jumeirah, Al Barsha, Business Bay, JLT, DMCC, DIFC, Dubai Internet City, JAFZA, DIP, and Al Quoz. For contractors, we can supply labelled units for each entrance with staging notes so the site team knows which device belongs to which gate, door, or floor.

MEA export from Dubai

Vector Digital Systems exports Fanvil door phones from Dubai for telecom resellers, ELV contractors, PABX installers, and system integrators. Gulf shipments are commonly quoted for Saudi Arabia, Oman, Qatar, and Kuwait; East Africa enquiries often come from Kenya, Tanzania, and Uganda; West Africa and South Asia projects include Nigeria, Ghana, and Pakistan.

Export quotes are issued FOB Dubai with commercial invoice, packing list, and certificate of origin. Share the model, quantity, destination country, and whether you need staging before export. We confirm availability, packing details, and dispatch options from Dubai.