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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
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Description
GRANDSTREAM UCM6510 HIGH AVAILABILITY CONTROLLERThe HA100 offers an automated failover solution for the UCM6510 IP PBX. When connecting between two UCM6510 the HA100 constantly monitors the operation status of both UCM6510 and automatically switches the system control including all of the connected telecom lines network links auxiliary devices and all of the SIP endpoints previously registered on the primary UCM6510 to the hot standby secondary UCM6510 in the event that the primary UCM6510 fails.
The HA100 offers an automated failover solution for the UCM6510 IP PBX. When connecting between two UCM6510 the HA100 constantly monitors the operation status of both UCM6510 and automatically switches the system control including all of the connected telecom lines network links auxiliary devices and all of the SIP endpoints previously registered on the primary UCM6510 to the hot-standby secondary UCM6510 in the event that the primary UCM6510 fails. It can complete the entire system switch between 10 and 50 seconds depending on the number of registered SIP endpoints. Thanks to its smart monitoring and automated failover capability the HA100 is an ideal high-availability solution for the UCM6510 to ensure maximum total system reliability and uptime. Features- Connects and constantly monitors two UCM6510 together for high availability
- Smart failover solution that automatically switches to a hot-standby secondary UCM6510 if the primary one fails
- Up to 14 LED indicators showing real-time status of all of the telecom lines network links auxiliary devices etc
- Gratuitous ARP forces SIP endpoints to refresh the MAC address of the new UCM6510 without interruptions
- Fast 10 to 50 second system switching time depending on the number of registered endpoints
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
4.7 ★★★★★
Based on 26 reviews
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Product Reviews
★★★★★ 5
Style and comfort
Size: Medium, Color: Black
Exactly what I was looking for. Style and sock thickness and comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 14, 2025
★★★★★ 5
Comfortable
Size: Medium, Color: Blue
So comfortable! They stay up perfectly love love love
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Reviewed in the United States on December 7, 2025
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
★★★★★ 5
So will not write down your foot
Size: Medium, Color: (001) Black / Black / Castlerock
I love these socks. They have a little bit of gel on the top of the heel for support in your tennis shoes and so your socks don’t write down. Very good quality.
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Comfy and Stay Put
Size: Medium, Color: (002) Black / Black / Halo Gray
These socks are honestly great. They’re super thin and light, so once you have them on, you kind of forget they’re even there. No bulky feeling in your shoes at all.
The best part is they actually stay on. I hate no-show socks that slide down after five minutes, and these don’t do that. The little grip on the heel really works, so you’re not constantly adjusting them all day.
They’re breathable too, which is nice if your feet run warm. They dry fast and don’t get that gross sweaty feeling. And there’s no annoying seam on the toe, so nothing rubs or feels uncomfortable.
Basically, they’re just comfy, stay put, and don’t cause problems — which is all I want from socks.
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Reviewed in the United States on January 16, 2026
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