Grandstream GDS3725 Video Door Station with 15-Key Keypad

The Grandstream GDS3725 is the access-control model of the GDS372x series, pairing a 15-key keypad and a 4MP sensor with a 13.56MHz/125kHz reader for up to 5,000 cards, plus NFC, Bluetooth and QR entry. It fits office and apartment entrances used by staff, residents and visitors in different ways.

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The Grandstream GDS3725 is the model to choose when access control matters more than the doorbell. A 15-key keypad sits on the front, a dual-frequency card reader with NFC below it and a 4MP camera above. One door, many ways in: staff by PIN or badge, visitors by QR code, managers from an app on their phone.

Grandstream GDS3725 entry options

The GDS3725 supports six ways to open a door and is the only model in the series that adds keypad PIN entry:

• PIN on the 15-key keypad.
• RFID cards at 13.56MHz or 125kHz, including MIFARE Classic 1K/4K, Ultralight, PLUS and DESFire, up to 5,000 cards.
• NFC from a phone or card.
• The SecureAccess app over Bluetooth BLE 5.0.
• QR codes for visitors.
• A SIP call or an HTTP API command.

Extra protection for sensitive doors

The keypad brings features the GDS3726 and GDS3727 do not have. A Hostage Code raises an alarm when someone is forced to open the door, and repeated wrong codes trigger another alarm. The GDS3725 is also the only model with Building Mode, which requires the GDMS SecureAccess platform.

Camera and audio

The camera uses a 1/3-inch 4MP HDR sensor. The F2.2 lens covers 127° horizontally and 152° diagonally, with WDR up to 120 dB. At night, six white LEDs and an AI fill light take over, and a PIR sensor picks up motion at 3 to 5 m. Two microphones with AI noise reduction and a 3 W speaker handle the conversation.

Locks, alarms and storage

• Two solid-state relays rated 30VDC/2A, protected against external magnetic interference.
• Three alarm inputs and two alarm outputs.
• Wiegand 26/34 input and output, plus RS-485.
• microSD slot up to 256 GB.

Typical Saudi installations

• Corporate office entrances: employees use PIN or badge, guests get a QR code from reception.
• Apartment buildings in Riyadh or Dammam: residents carry MIFARE cards and couriers call the flat.
• Server rooms or pharmacy stores: PIN entry backed by a duress code.
• Compound gates: Wiegand ties it into the existing access panel.

Installation and management

The housing is rated IP66 and IK10 for metal and lens and runs from -30 to 60°C. Power it with 802.3af PoE or 9–36V DC at 12W. It measures 204 × 87 × 35.5 mm, weighs 1.56 kg and ships with a wall bracket. It registers on SIP PBXs such as the UCM6300, rings GSC357x stations and GXV phones, and is managed with GDS Manager 2.

GDS3725 or GDS3726?

The two share the same camera, reader, relays and dimensions. The only difference is the front: the GDS3725 has a 15-key keypad with PIN entry, Hostage Code and Building Mode, while the GDS3726 has a single doorbell key. Pick the GDS3725 when PIN codes are part of your access policy.

Frequently Asked Questions

What is the difference between the Grandstream GDS3725 and GDS3726?

Same camera, reader and relays. The GDS3725 adds a 15-key keypad for PIN entry and Hostage Code; the GDS3726 has one doorbell key.

Does it read MIFARE and older 125kHz cards?

Yes. The reader handles 13.56MHz and 125kHz, including MIFARE Classic, Ultralight, PLUS and DESFire, up to 5,000 cards.

Does it work with a Grandstream UCM PBX?

Yes. It registers on the UCM6300 as a SIP server, and on other SIP PBXs with a standard SIP account.

Specifications

• Model: GDS3725
• Series: GDS372x video door and access control series
• Image sensor: 1/3", 4MP, HDR
• Video compression: H.264 High/Main/Base Profile, Motion JPEG
• Lens and field of view: F2.2; 127° horizontal, 70° vertical, 152° diagonal
• Wide dynamic range: Up to 120 dB
• Night lighting: 6 white LEDs plus AI fill light
• Motion sensing: PIR sensor 3–5 m plus AI motion detection
• Audio: 2 microphones with AI noise reduction, 3 W speaker
• Buttons: 15-key numeric keypad (PIN, manager key, hostage code)
• Extra modes: Building Mode (requires GDMS SecureAccess), repeated wrong-password alarm
• Card reader: 13.56 MHz and 125 kHz; MIFARE Classic 1K/4K, Ultralight, PLUS, DESFire; up to 5,000 cards
• NFC and Bluetooth: NFC, BLE 5.0
• Relay outputs: 2 solid-state relay(s), 30 VDC/2 A, protected against external magnetic interference
• Alarm inputs: 3 (dry contact only)
• Alarm outputs: 2
• Wiegand: Wiegand 26/34 input and output
• Expansion: RS-485, microSD slot up to 256 GB (Class 10/V10 minimum, V30 recommended)
• Network: 1× 10/100 Mbps RJ45 with integrated PoE
• Wi-Fi: No
• PoE: IEEE 802.3af
• DC power: DC 9–36 V, 12 W
• Door opening methods: SIP, HTTP API, SecureAccess app, QR code, RFID, NFC, keypad PIN
• Voice codecs: G.711, G.722, G.726, G.729
• Security: TLS, SRTP, HTTPS, 256-bit AES config encryption, 802.1x
• Upgrade and provisioning: Firmware via TFTP/HTTP/HTTPS; mass provisioning via TR-069 or AES-encrypted XML
• Interoperability: ONVIF Profile S
• Ingress protection: IP66
• Impact rating: IK10 (metal and lens)
• Operating / storage temperature: -30 to 60°C / -30 to 70°C
• Humidity: 10–90% non-condensing
• Dimensions (H×W×D): 204 × 87 × 35.5 mm
• Weight: 1.56 kg (1.743 kg packed)
• Mounting: Wall bracket included; flush-mount box, L-bracket and rain cover sold separately
• Certifications: FCC, CE, RCM, IC
• In the box: Unit, quick installation guide, regulatory paper, wall bracket, IC card, rear cover, wrench, securing clip, 7 anchors, 7 ST3.5×32mm screws, 2 M3×6mm screws, 2 M3×5.5mm screws, 2 dual-port waterproof silicone plugs, positioning sticker

Features

• 15-key keypad with Hostage Code: PIN entry plus an alarm under duress or after repeated wrong codes.
• 13.56MHz/125kHz reader for up to 5,000 cards, plus NFC: reads MIFARE cards and older 125kHz badges.
• 4MP HDR sensor, 152° diagonal lens and up to 120 dB WDR: clear faces in harsh light.
• 2 SSR relays, 3 alarm inputs, 2 alarm outputs and Wiegand 26/34: two doors and existing access panels.
• IP66, IK10 and -30 to 60°C operation: built for exposed, vandal-prone entrances.