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The GDS3705 was built for users looking for a strong audio-only facility access and security monitoring solution that can be deployed in environments of all sizes. This audio door system features dual microphones and HD loudspeaker with advanced AEC to offer intercom functionality, can support SIP calls to IP phones and has a built-in RFID chip reader and keypad for secured keyless or key entry. The GDS3705 comes equipped with a zinc alloy metal casing, making it weatherproof and vandal resistant and offers alarm-in and alarm-out support for integration with existing security devices. The GDS3705 integrates with Grandstream’s free management utility software, GDS Manager, allowing RFID card information, as well as the device itself to be fully managed by this software. Thanks to its integration with other Grandstream endpoints like the GXP IP phones, GXV video phones, and GS Wave mobile app, the GDS3705 offers a complete end-to-end solution for access control, audio intercom, and security needs.
DigiMark Solution has been Bangladesh's authorized Grandstream distributor. Every Grandstream GDS3705 IP Audio Door System is 100% genuine with original firmware and official manufacturer warranty, backed by trained engineers for installation, configuration and RMA support nationwide. Bulk and corporate orders are welcome.
| SPECIFICATION | PR00733 |
|---|---|
| Network | 10M/100M Auto-sensing |
| PoE | PoE IEEE 802.3af Class3 |
| Supply Voltage | 12VDC /1A (AC power adapter not included) |
| SIP/VoIP Support | Yes, broad interoperability |
| Voice Codecs | G.711μ/a-law, G.722, DTMF (RFC2833, SIP INFO), AEC, ANC |
| Audio Input | Integrated dual microphones up to 1.5m |
| Audio Output | HD loudspeaker 2W, up to 3m |
| Built-in Key Pad | 12+1 Metal keys with Blue LED backlight |
| RFID | EM4100 (125kHz) |
| RFID Number Supported | Up to 2,000 recommended |
| Input | 2 Optocoupler Input, Vin < 15V, for door sensor or other low voltage devices |
| Output | 2 Relay, 125VAC/0.5A or 30VDC/2A, Normal Open or Normal Close, for electric lock, light switch or other relative high voltage devices |
| Expansion Interface | RS485, Wiegand (26 bits) input and output |
| Waterproof Certification | IP66 (EN60529) |
| Attribute / Feature | Specification Details |
|---|---|
| Network | 10M/100M Auto-sensing |
| PoE | PoE IEEE 802.3af Class3 |
| Supply Voltage | 12VDC /1A (AC power adapter not included) |
| SIP/VoIP Support | Yes, broad interoperability |
| Voice Codecs | G.711μ/a-law, G.722, DTMF (RFC2833, SIP INFO), AEC, ANC |
| Audio Input | Integrated dual microphones up to 1.5m |
| Audio Output | HD loudspeaker 2W, up to 3m |
| Built-in Key Pad | 12+1 Metal keys with Blue LED backlight |
| RFID | EM4100 (125kHz) |
| RFID Number Supported | Up to 2,000 recommended |
| Input | 2 Optocoupler Input, Vin < 15V, for door sensor or other low voltage devices |
| Output | 2 Relay, 125VAC/0.5A or 30VDC/2A, Normal Open or Normal Close, for electric lock, light switch or other relative high voltage devices |
| Expansion Interface | RS485, Wiegand (26 bits) input and output |
| Waterproof Certification | IP66 (EN60529) |
Pricing depends on quantity and project scope. Tap Get Best Price or WhatsApp 01979234342 for a same-day corporate quote.
Yes — supplied with original Grandstream official warranty, and installation support across Bangladesh by DigiMark Solution.
Yes — remote configuration help, on-site installation on request, and RMA handling from DigiMark service desk.
Tell us your query and whether you need the complete kit — our engineers will specify and quote the same day.