Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
Grandstream GXW4504 4x E1/T1/J1 Port Digital VOIP GatewayProduct Features: Dual Gigabit autosensing RJ45 network ports with integrated NAT router TLS and SRTP security encryption technology to protect calls and accounts Automated provisioning by HTTP TFTP with XML config files Software configurable E1 T1 J1 ports, support PRI, SS7, MFC R2 Supports a wide range of voice codecs, including G. 722, G. 729, iLBC, and more Supports T. 38 Fax for creating Fax over IP Supports multi language voice prompts, and up
Product Features:- Dual Gigabit autosensing RJ45 network ports with integrated NAT router
- TLS and SRTP security encryption technology to protect calls and accounts
- Automated provisioning by HTTP/TFTP with XML config files
- Software configurable E1/T1/J1 ports, support PRI, SS7, MFC R2
- Supports a wide-range of voice codecs, including G.722, G.729, iLBC, and more
- Supports T.38 Fax for creating Fax-over-IP
- Supports multi-language voice prompts, and up to 120 concurrent calls
- E1/T1/J1 Interface: 4 RJ45 ports, supporting up to 120 simultaneous VoIP calls
- Network Interfaces: Dual self-adaptive Gigabit ports (switched or routed)
- Peripheral Ports: (2) USB 3.0, (1) SD card interface
- LED Indicators: LAN, WAN, E1/T1/J1
- Voice-over-Packet Capabilities: LEC with NLP Packetized Voice Protocol Unit, 128ms-tail length carrier grade Line Echo Cancellation, Dynamic Jitter Buffer, Modem detection & auto-switch to G.711
- Voice and Fax Codecs: G.711 A-law/U-law, G.722, G.723.1 5.3K/6.3K, G.726, G.729A/B, iLBC, AAL2-G.726-32
- Voice-quality Enhancement: Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), PLC
- QoS: Layer 2 QoS (802.1Q, 802.1p) and Layer 3 (ToS, DiffServ, MPLS) QoS
- DTMF Methods: In-band audio, RFC2833, and SIP INFO
- Device Management: Syslog, HTTPS, Web browser, voice prompt, backup and restore, port capture and packet capture
- Network Protocols: TCP/UDP/IP, RTP/RTCP, ICMP, ARP, DNS, DDNS, DHCP, NTP, TFTP, SSH, HTTP/HTTPS, PPPoE, STUN, SRTP, TLS, LDAP, PPP, Frame Relay (pending), IPv6, OpenVPN
- Media Encryption: SRTP, TLS, HTTPS, SSH, 802.1X
- User-defined ports: SIP port, RTP port, HTTP/HTTPS port
- Universal Power Supply: Input: 100 ~ 240VAC, 50/60Hz; Output: DC+12V, 2A
- Mounting: Rack mount & Desktop
(1) Grandstream GXW4501 Digital VOIP Gateway
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
4.5 ★★★★★
Based on 286 reviews
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Product Reviews
★★★★★ 5
Baby toys
My greatgrandson loves it
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2026
★★★★★ 1
Hard pass
Format: Hardcover
Marketed to kids 4-12, this content is quite simply odd. Squirrel girl taking her (female) squirrel to a school dance dressed up in a trenchcoat? Black Panther recalling a library fight over…censored books and xenophobia? Wiccan baking his gay superhero lover a cake? Ms. Marvel having an anxiety attack and obsessing over ‘not being enough’ over a social media post calling her a b-list superhero? Gwen Stacy haunted by an intergalactic stalker/creep that keeps her from band practice? This one is high on progressive storylines and low on decent storytelling…
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Reviewed in the United States on February 13, 2026
★★★★★ 1
Save your money and buy the old comics
Format: Hardcover
Revisionist garbage book with terrible comics , stories and art
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Reviewed in the United States on December 8, 2025
★★★★★ 5
Adorable book!
Format: Hardcover
Purchased this book as a Christmas gift for my husband’s little cousin, who is two years old. He adores Mickey and Minnie Mouse and his mother was the one who suggested it. I would recommend this book for all little readers.
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Reviewed in the United States on March 13, 2026
★★★★★ 5
Quality
Format: Hardcover
Nice book. Interactive learning. Worth the money
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Reviewed in the United States on May 4, 2026