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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
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Description
Grandstream GSC3516 2-WAY SIP Speaker In-CeilingDescriptionSpecificationsShipping The GSC3516 is a SIP Multicast Talk Back Speaker that allows offices, schools, hospitals, apartments and more to build powerful voice intercom solutions that expand security and communication. This robust SIP intercom device offers 2 way voice functionality with both a high fidelity 15W HD speaker and 3 directional microphones with Multichannel Microphone Array Design (MMAD) an d 1 omnidirectional auxiliary microphone
The GSC3516 is a SIP/Multicast Talk-Back Speaker that allows offices, schools, hospitals, apartments and more to build powerful voice intercom solutions that expand security and communication. This robust SIP intercom device offers 2-way voice functionality with both a high-fidelity 15W HD speaker and 3 directional microphones with Multichannel Microphone Array Design (MMAD) an d 1 omnidirectional auxiliary microphone that offer a 4.2 meter pickup distance. The GSC3516 supports a wide-range of peripherals including Bluetooth devices, built-in whitelists, blacklists and greylists to easily block unwanted calls, integrated dual-band Wi-Fi and advanced acoustic echo cancellation. By pairing the GSC3516 with other Grandstream devices, including desktop and cordless IP phones a s well as the GDS series of Facility Access products, users can easily sculpt a state-of-the-art security a nd voice intercom solution. Thanks to it’s modern industrial design, cleanable exterior surface and rich features, the GSC3516 is the ideal intercom speaker/microphone for any setting.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.8 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 3
Good Idea, didn't Match Expectations.
Size: Large
Heavy and a bit difficult to 'load.' Maybe too hard for our dog. He did carry it around but didn't try to get treats as well as expected and it's quite difficult to clean. Maybe best for a larger more aggressive dog than a 65 lb. lab mix.
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Reviewed in the United States on May 16, 2026
★★★★★ 2
This Bites
Size: Large, Size: Large
We've happily used OxyFresh pet water additive for probably around 15 years. I love that product, so I figured their toys would be great too. Not so much. The concept seems good. This does feel like a heavy duty rubber and it feels like a sturdy construction, but in actuality, it did not hold up. Without a goal like food in it, my two dogs had 0 interest in this. It says you can put a treat in it. I wrestled to put a piece of kibble in the jaws of this toy, but that was tough and there isn't much room in there. That did pique their interest. Both my boys are about 50 lbs. One is a heavy chewer and the other is pretty gentle mouthed with toys. BOTH dogs were taking chunks out of this immediately. I must say that I'm really disappointed. If the rubber held up, this is a fantastic concept and seemed like it would work very well to clean teeth. Unfortunately for us, this was an expensive toy that began to fail within about 15 minutes of what seemed to be very average use. We'll be continuing to use a toothbrush instead.
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Reviewed in the United States on June 15, 2025
★★★★★ 5
Durable
This is a great toy! I have a heavy chewer that destroys other toys in seconds. I have had this for 6 months and it still looks new.
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Reviewed in the United States on June 4, 2026
★★★★★ 5
Indestructible for heavy chewers!!
One of the rare toys my boys can’t destroy! Cost effective! Definitely recommend!
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Durable and dog loves it
I was searching for a squeaky toy but also a chew toy that wouldn’t break my dog’s teeth. We’ve already had to have one tooth pulled because our Jurassic Corgi girl cracked it on either a bone or a yak chew. She loves to play with this bone and chew on it and it has held up well. It still looks like new after several months and she plays with it daily.
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Reviewed in the United States on February 21, 2026