Grandstream GDS3705 IP Audio Door System with Keypad and RFID

The Grandstream GDS3705 is an audio-only SIP door station with a 12+1 metal keypad, a 125kHz RFID reader and two relay outputs in an IP66 metal housing. It fits office, warehouse and server-room doors that need card or PIN entry and a voice link to a desk phone, without paying for a camera.

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The Grandstream GDS3705 is the audio-only member of the GDS3700 family. It skips the camera and keeps what a door needs: a metal keypad, an RFID reader and two relay outputs, all on one network cable. A visitor presses the bell, a desk phone rings at reception, and the receptionist opens the door from the phone's keypad. Staff use a card or a PIN.

Grandstream GDS3705 specifications at a glance

• Dual microphones with pickup up to 1.5 m and a 2 W HD speaker audible up to 3 m, with acoustic echo cancellation (AEC) and noise cancellation (ANC).
• 12+1 metal keys with blue backlighting.
• 125kHz EM4100 RFID reader, up to 2,000 cards recommended.
• 10/100 Mbps Ethernet with 802.3af Class 3 PoE, or a 12V/1A adapter.

Ways to open the door

Pick the method that suits each person:

• RFID card or key fob for staff.
• A unified PIN, a private PIN per user, or card plus private PIN for higher security.
• A guest PIN with start and end times, handy for a maintenance contractor or a supplier on a set day.
• Remote opening by sending a PIN as DTMF tones during a call, or through the HTTP API.
• Keep the door open immediately or on a schedule, for example during clinic or showroom hours.

Two relays and two alarm inputs

The rear terminals carry two relays rated 125VAC/0.5A or 30VDC/2A, each set as normally open or normally closed. Wire a lock to one and an entrance light or second door to the other. The two alarm inputs (under 15V) accept door sensors. RS-485 and 26-bit Wiegand in/out connect an external reader or access panel.

Metal housing for outdoor entrances

The casing is rated IP66 against dust and water and IK09 against impact, and runs from -30 to 60°C. Surface-mount it at 173 × 80 × 36 mm, or flush-mount it with a 217 × 120 × 11.6 mm in-wall frame. It weighs 0.635 kg.

Typical jobs in Saudi Arabia

• Warehouse or workshop gates in an industrial area: drivers press the bell and talk to the supervisor on his desk phone.
• Server rooms and archive rooms: card plus PIN entry.
• Rear staff entrances in hospitals and hotels where a camera at every door is not needed.
• Small residential buildings replacing an old buzzer with a bell that reaches a smartphone app.

Works with your PBX and phones

The GDS3705 registers as a standard SIP endpoint on SIP-based IP PBXs, including Grandstream UCM systems. Grandstream lists integration with GXP IP phones, GXV video phones and the GS Wave app. Device settings and card data are managed in the free GDS Manager software or through the GDMS cloud platform.

GDS3705 or GDS3710?

The difference is the camera. The GDS3710 adds a 2MP 1080p camera with a 180-degree view and LED lighting, and keeps a keypad, RFID reader and two relays like the GDS3705. Choose the GDS3705 when audio is enough; choose the GDS3710 to see visitors and keep video records.

Frequently Asked Questions

Does the Grandstream GDS3705 have a camera?

No, it is audio-only. If you need to see visitors, look at the GDS3710 or the GDS372x models.

How many RFID cards does it support?

Grandstream recommends up to 2,000 125kHz EM4100 cards.

Specifications

• Model: GDS3705
• Series: GDS3700 IP audio door system
• Camera: None (audio only)
• Network: 10/100 Mbps auto-sensing
• Voice codecs: G.711 μ/a-law, G.722; DTMF RFC2833, SIP INFO; AEC, ANC
• Audio input: Dual integrated microphones, up to 1.5 m
• Audio output: 2 W HD loudspeaker, up to 3 m
• Keypad: 12+1 metal keys with blue LED backlight
• RFID: EM4100 125 kHz, up to 2,000 cards recommended
• Alarm inputs: 2 optocoupler inputs, Vin < 15 V (door sensors etc.)
• Alarm / relay outputs: 2 relays, 125 VAC/0.5 A or 30 VDC/2 A, NO or NC (electric lock, light, etc.)
• Expansion interface: RS-485; Wiegand 26-bit input and output
• Network protocols: TCP/IP/UDP, RTP/RTCP, HTTP/HTTPS, TR-069, DHCP, SSH, NTP, STUN, TLS, SRTP and more
• QoS: Layer 2 (802.1Q/802.1p)
• Security: MD5/MD5-sess authentication, 256-bit AES config encryption, TLS, SRTP, HTTPS, 802.1Q
• Upgrade / provisioning: Firmware via HTTP/HTTPS; mass provisioning via TR-069 or AES-encrypted XML
• PoE: IEEE 802.3af Class 3
• Power supply: 12 VDC/1 A
• Waterproofing: IP66 (EN60529)
• Vandal resistance: IK09 (IEC 62262)
• Operating / storage temperature: -30 to 60°C / -35 to 60°C
• Humidity: 10–90% non-condensing
• Mounting: On-wall or in-wall
• Dimensions (H×W×D): On-wall 173 × 80 × 36 mm; in-wall 217 × 120 × 11.6 mm
• Weight: 0.635 kg
• Compliance: FCC Part 15 B/C, MPE; CE; RCM; IC (ICES-003, RSS310)

Features

• 12+1 metal keys with blue backlight: staff can enter a PIN even in poor light.
• 125kHz RFID reader, up to 2,000 cards recommended: cards or key fobs replace metal keys.
• 2 relay outputs (30VDC/2A) and 2 alarm inputs: drive two locks, or a lock plus a light, and wire in a door sensor.
• SIP and 802.3af PoE: the bell rings a desk phone or the GS Wave app over a single network cable.
• IP66, IK09 and -30 to 60°C operation: a metal unit built for outdoor entrances.