# Grandstream GSC3516 SIP/Multicast Talk-Back Speaker

## Grandstream GSC3516 SIP/Multicast Talk-Back Speaker

The GSC3516 is a SIP/Multicast Talk-Back Speaker that offers 2-way voice, 15W HD speaker and 3 directional microphones with MMAD and 1 omnidirectional microphone with a 4.2 meter pickup distance.  

-   Full-duplex speakerphone with HD acoustic chamber, advanced acoustic echo cancellation
-   3 directional mics with MMAD & microphone beamforming array and 1 omnidirectional  
    auxiliary microphone
-   Full-band and wide-band audio codec support including Opus & G.722
-   Integrated dual-band 802.11 a/b/g/n/ac Wi-Fi and Bluetooth
-   One 10/100Mbps network port with PoE/PoE+
-   2-pin multi-purpose input to support peripherals including call buttons

## Details

- **Price:** 4459.0 ZAR
- **Vendor:** Grandstream
- **Type:** Intercom & Paging
- **Tags:** First Distribution, Grandstream, PoE, SIP

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4459.00 ZAR | In stock |

## Images

- Grandstream GSC3516 SIP/Multicast Talk-Back Speaker - Guards On Duty Shop & Security Guards
- Grandstream GSC3516 SIP/Multicast Talk-Back Speaker - Guards On Duty Shop & Security Guards
- Grandstream GSC3516 SIP/Multicast Talk-Back Speaker - Guards On Duty Shop & Security Guards
- Grandstream GSC3516 SIP/Multicast Talk-Back Speaker - Guards On Duty Shop & Security Guards

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> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/grandstream-gsc3516-sip-multicast-talk-back-speaker)
> Updated: 2026-05-21