The Grandstream GSC3516 is a 2-way SIP intercom and paging speaker built for sites that need more output and a broader feature set than an entry-level unit provides. Its 15W high-fidelity HD speaker and HD acoustic chamber cover a 110Hz-20000Hz frequency range at up to 90 dBA (1W\/0.5m), giving it headroom for larger open areas and higher-ambient-noise sites. A four-microphone array \u2014 three directional mics with beamforming plus one omnidirectional auxiliary mic \u2014 picks up spoken replies from as far as 4.2 meters. Dual-band 802.11 a\/b\/g\/n\/ac Wi-Fi and Bluetooth 2.1+EDR\/BT5.0 round out its connectivity, and it runs on a single 10\/100Mbps PoE\/PoE+ Ethernet port. Within the GSC35 line, the Grandstream GSC3516 is the higher-output paging speaker.<\/p>\n
The unit supports SIP Paging, Multicast Paging, Group Paging, and PTT, plus call-waiting with priority override, so a facility can run scheduled announcements, ad-hoc pages to specific zones, and urgent overrides through the same speaker without extra hardware. Audio runs across a wide codec set \u2014 G.711 mu\/a-law, G.722, G.726-32, iLBC, Opus, G.723, and G.729A\/B \u2014 full band at 48KHz sampling with VAD, CNG, AEC, PLC, AJB, AGC, and ANS processing, which keeps announcements intelligible even on sites with variable network conditions. The 2-pin multi-purpose input port lets integrators attach a call button or trigger contact, and PoE\/PoE+ over the 10\/100 Ethernet port keeps power and signalling on one cable run.<\/p>\n
The added output and paging modes suit larger or noisier environments: distribution-center floors and multi-bay warehouses where a single announcement needs to carry over forklift and conveyor noise, campus-style compounds or industrial sites where group paging can target one building without disturbing another, and retail or hospitality back-of-house areas that need both routine paging and a priority-override channel for emergencies. Its operating range of 0-45\u00b0C keeps it usable in semi-exposed mounting points such as covered loading bays or open mezzanine walkways, in addition to standard indoor installs. Because it runs on the same PoE\/PoE+ Ethernet infrastructure as most IP camera and access-control deployments, it drops into existing structured cabling without a dedicated audio-system build-out.<\/p>\n
Compared with the GSC3510, a smaller, more compact unit built for straightforward paging coverage, the GSC3516 trades compactness for a bigger driver, a wider Wi-Fi band, and a fuller set of paging modes, making it the better fit where a site needs more reach or more call-handling flexibility. The GSC3575 in the same family adds a second speaker for full-duplex two-way audio, useful where listen-and-talk needs to happen simultaneously rather than in alternating turns. The GSC3506-V2 variant supports a higher PoE power class for sites planning extra powered peripherals on the same run. For zones that are simply larger, louder, or need more paging modes than a single-purpose announcement point, the GSC3516’s driver and feature set are the more capable match within the family.<\/p>\n
The box includes mounting kits and a quick installation guide, keeping on-site setup straightforward for technicians already familiar with the GSC35 line. At 0.92kg unit weight (1.75kg packaged), it mounts without specialized rigging on standard walls or ceilings. Because both power and SIP registration travel over the same PoE\/PoE+ Ethernet run, a single structured cable serves the entire installation, and the 2-pin input port leaves room to wire in a call button or alarm contact without additional cabling later. Planning the mount height around the 4.2-meter microphone pickup keeps the array within range of whoever is expected to answer a page, which matters more for the GSC3516 given the wider area it is typically asked to cover. Where several GSC3516 units are deployed across one campus, group paging lets an operator target a single zone by building or wing instead of broadcasting to every speaker on the network at once.<\/p>\n
The Grandstream GSC3516 is a 15W 2-way SIP paging speaker with dual-band Wi-Fi, multiple paging modes, and PoE\/PoE+ power for larger coverage zones.<\/p>\n","protected":false},"featured_media":4666,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[497],"product_cat":[508],"product_tag":[],"class_list":["post-4664","product","type-product","status-publish","has-post-thumbnail","product_brand-grandstream","product_cat-sip-paging-audio","first","onbackorder","taxable","shipping-taxable","purchasable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product\/4664","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/comments?post=4664"}],"version-history":[{"count":2,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product\/4664\/revisions"}],"predecessor-version":[{"id":5152,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product\/4664\/revisions\/5152"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/media\/4666"}],"wp:attachment":[{"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/media?parent=4664"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product_brand?post=4664"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product_cat?post=4664"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/risys.sa\/en\/wp-json\/wp\/v2\/product_tag?post=4664"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}