Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 10 - Jul 15
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Description
Grandstream HT813 Analog Telephone AdapterThe HT813 is an analog telephone adapter that features 1 analog telephone FXS port and 1 PSTN line FXO port. Grandstream HT813 ATA Features and Functions: Supports 2 SIP profiles through 1 FXS port and 1 FXO port Dual 100Mbps LAN and WAN ports Lifeline support (FXS port will be hard relayed to FXO port) in case of power outage 3 way voice conferencing per port Automated & secure provisioning options using TR069 Supports T. 38 Fax for reliable Fax over
The HT813 is an analog telephone adapter that features 1 analog telephone FXS port and 1 PSTN line FXO port.
Grandstream HT813 ATA Features and Functions:
- Supports 2 SIP profiles through 1 FXS port and 1 FXO port
- Dual 100Mbps LAN and WAN ports
- Lifeline support (FXS port will be hard-relayed to FXO port) in case of power outage
- 3-way voice conferencing per port
- Automated & secure provisioning options using TR069
- Supports T.38 Fax for reliable Fax-over-IP
- Failover SIP server automatically switches to secondary server if main server loses connection
- Strong AES encryption with security certificate per unit
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
4.2 ★★★★★
Based on 566 reviews
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Product Reviews
★★★★★ 5
Fit great
Good product
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Reviewed in the United States on April 19, 2026
★★★★★ 3
Could be better
A lense came with a HUGE scratch, the glasses are completely lopsided. Any way I can fix this ?
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Reviewed in the United States on June 6, 2025
★★★★★ 5
Excelente compra
Me encantó, amo mis lentes
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Reviewed in the United States on March 17, 2026
★★★★★ 5
Lentes
Producto está en perfecto estado era lo que quería la relación precio calidad está bien las fotos que se muestran son 100% real a como luce el producto
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Reviewed in the United States on September 29, 2025
★★★★★ 5
Buy
Great glasses so pretty
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Reviewed in the United States on May 28, 2025