# Grandstream SIP/Multicast Intercom Speaker/Microphone | GSC3516

The Grandstream GSC3516 is a two-way SIP and multicast intercom speaker and microphone designed for clear public address and intercom communication. It features a high-fidelity 15W speaker and three directional microphones with Multichannel Microphone Array Design (MMAD), offering a pickup distance of up to 4.2 metres. The device supports both SIP and multicast paging, allowing flexible deployment options. Connectivity includes integrated dual-band 2.4/5GHz Wi-Fi, Bluetooth support, and a 10/100Mbps network port with PoE/PoE+. The GSC3516 is ideal for security and communication solutions in schools, offices, hospitals, and retail centres. Key features Two-way SIP and a multicast intercom speaker and microphone 15W high-fidelity speaker and three directional microphones with MMAD Microphone pickup distance up to 4.2 metres Supports SIP and multicast paging Dual-band 2.4/5GHz Wi-Fi and Bluetooth connectivity 10/100Mbps network port with PoE/PoE+ support Suitable for schools, offices, hospitals, and retail centres

## Details

- **Price:** 4156.0 ZAR
- **Vendor:** Grandstream
- **Type:** Doorphone (Intercom)
- **Tags:** Doorphone (Intercom), Grandstream, Miro

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 4156.00 ZAR | In stock |

## Images

- Grandstream SIP/Multicast Intercom Speaker/Microphone | GSC3516
- Grandstream SIP/Multicast Intercom Speaker/Microphone | GSC3516
- Grandstream SIP/Multicast Intercom Speaker/Microphone | GSC3516
- Grandstream SIP/Multicast Intercom Speaker/Microphone | GSC3516

---

> Source: [Guards On Duty Shop & Security Guards ](https://guardsondutyshop.co.za/products/grandstream-sip-multicast-intercom-speaker-microphone-gsc3516)
> Updated: 2026-06-23