Grandstream GSC3570 7-inch SIP Intercom Indoor Station, Wi-Fi, PoE

Overview

The Grandstream GSC3570 is an indoor screen (video door phone monitor) with a 7-inch touchscreen that answers calls from door stations, shows the visitor on video and opens the door from the same screen. It makes SIP (Session Initiation Protocol) calls with full-duplex HD audio and can also page through speakers and handle simple local alarms. It suits reception desks, security rooms and apartments that need to answer Grandstream GDS or GSC door stations.

Is it right for you?

• Choose it as the indoor half of a door intercom: it pairs with the GDS3725, GDS3726, GDS3726Q and GDS3727 door phones by direct IP peering, and with the GSC3560 and GSC3565 outdoor intercoms.
• It can register to a SIP server or work without one, so it suits a single door at a home or small office as well as a PBX-based building.
• 4 alarm inputs and one relay cover a door sensor, a button and one lock or light. If you need more inputs, two relays or Wi-Fi 6, the newer Android-based GSC3574 and GSC3575 add those.
• Indoor use only: it works from -10 to 50 °C and should be kept away from direct weather.

Key features

• 7-inch 1024 x 600 capacitive touchscreen with a home key and dual stereo speakers.
• 4 SIP accounts, and H.264 video decoding up to 720p at 30 fps for door station video.
• Full-duplex wideband audio with acoustic echo cancellation, so both sides can talk at once without feedback.
• 4 alarm inputs: 1 optocoupler input (under 15 V) and 3 dry contacts for door sensors or buttons.
• 1 relay output, normally open or normally closed, rated 125 V AC/0.5 A or 30 V DC/2 A, for an electric lock or a light.
• Dual switched 10/100 Mbps network ports, so a desk phone or PC can share the cable, and dual-band 802.11ac Wi-Fi.
• microSD slot up to 256 GB; secure boot, TLS and SRTP.
• Codecs include G.711, G.722, G.726-32, iLBC, Opus and G.729A/B.

What else you need

• A door station to answer: a Grandstream GDS37xx video door phone or a GSC3560 or GSC3565 outdoor intercom.
• Power: a PoE switch port (802.3af Class 3, under 10 W), a 12 V DC 1 A supply or a micro USB 5 V 2 A input.
• A SIP server such as a Grandstream UCM (Unified Communications Manager) if you want it on a phone system; otherwise it can be peered directly with a GDS37xx door station.
• If it drives a lock from its own relay, the lock and a power supply for the lock.

Installation

An intercom installer should fit it, although the wiring is light. It mounts on the wall bracket that comes with it, with a network cable to a PoE port or a 12 V DC feed, and any door sensors, buttons or a lock wired to the alarm inputs and relay. It is then paired with the door station or registered to the SIP server through its web interface. The unit measures 224.5 x 149.5 x 36.5 mm and weighs 517 g. Mount it indoors, within -10 to 50 °C.

Software and licences

• Runs Linux with a local web interface. It registers to a SIP server or peers directly with GDS37xx door stations, either as a remote door opener or as the door controller using its own relay.
• No licence is listed.

Before you buy

• One relay and 4 alarm inputs: the GSC3574 and GSC3575 add Wi-Fi 6, 8 alarm inputs and a second relay.
• Indoor use only.
• A wall bracket is included.