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Description
Grandstream GXW4248 Analog VoIP 48 Port FXS GatewayThe Grandstream GXW4248 is a high density FXS gateway that enables business of all sizes to create a cost effective hybrid IP and analog telephone system that offers the benefits of VoIP communications and takes advantage of Gigabit speeds while preserving investment on existing analog phones, fax machines, and legacy PBX systems. Product includes 48 FXS ports, a Gigabit network port and features broad interoperability with most service providers,
The Grandstream GXW4248 is a high-density FXS gateway that enables business of all sizes to create a cost-effective hybrid IP and analog telephone system that offers the benefits of VoIP communications and takes advantage of Gigabit speeds while preserving investment on existing analog phones, fax machines, and legacy PBX systems. Product includes 48 FXS ports, a Gigabit network port and features broad interoperability with most service providers, soft-switches, and SIP-based environments.
Product Features:
- A single 10/100/1000Mbps auto-sensing RJ45 port
- TLS and SRTP security encryption technology to protect calls and accounts
- Automated provisioning options include TR-069 and XML config files
- Supports 3-way voice conferencing
- Failover SIP server feature automatically switches to secondary server if main server loses connection
- Supports T.38 Fax for creating Fax-over-IP
- Supports a wide range of caller ID formats
- Use with Grandstream's UCM series of IP PBXs for Zero Configuration
- Supports advanced telephony features, including call transfer, call forwarding, call-waiting, do not disturb, message waiting indication, multi-language prompts, flexible dial plan and more
- Telephone Interfaces: 2 x 50-pin Telco connectors
- Network Interfaces: 1 x 10/100/1000Mbps auto-sensing RJ45 port
- LED Indicators: LAN Link, LAN Activity, Connection per Telephone Port
- LCD Display: Backlit 128x32 graphic LCD display with support for multiple language
- Voice-over-Packet Capabilities: Window based carrier grade line echo cancellation, dynamic jitter buffer, modern detection and auto-switch to G.711
- Voice Compression: G.711, G.723.1, G.726 (40/32/24/16), G.729 A/B, iLBC
- Fax over IP: T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax pass-through, Fax data pump V.17, V.21, V.27, V.29 for T.38 fax relay
- QoS: DiffServ, TOS, 802.1P/Q VLAN tagging
- Network Protocols: TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP
- DTMF Method: Flexible DTMF transmission methods including in-audio, RFC2833, and/or SIP INFO
- Signaling: SIP (RFC 3261) over UDP/TCP/TLS
- SIP Server Profiles & Accounts per System: 4 distinct SIP server profiles per system and independent SIP account per telephone port
- Provisioning: TFTP, HTTP, HTTTPS, TR069
- Security: SRTP, TLS/SIPS, HTTPS, 802.1x
- Management: Syslog, HTTPS, Web browser, voice prompt, TR-069
- Power Supply Output: 24VDC, 6.25A
- Power Supply Input: 100 - 240VAC, 50-60Hz
- Operating Temperature: 0 to 40°C
- Storage Temperature: -20 to 60°C
- Humidity: 10 to 90% non-condensing
- Electrical Protection: Over-voltage and over-current protection (ITU-T Recommendation K.21, Basic Test Level)
- Dimensions: 440 x 255 x 44mm
- Unit Weight: 3.21kg
- Package Weight: 4.31kg
- Mounting: Desktop and rack mount with front brackets
- LED Indicators: Power, LAN Link/Activity, Hard Drive Activity
- Short and Long Haul: 2 REN, up to 2km on 24AWG wire
- Caller ID: Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID
- Disconnect Methods: Busy Tone, Polarity Reversal/Wink, Loop Current
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 2240 reviews
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Product Reviews
★★★★★ 3
Sadly, DNF
Format: Kindle
I read this thru KU. I LOVED the synopsis. And then I began reading... and it was a DNF at 68% after picking it up and putting it down several times because I really loved the main female character.
*****SPOILERS*****
Pros:
The world is unique, intriguing and fun. The primary female character is bad-a** but not a b*tech or a mary sue. The primary female has depth. I really want to know what happens to her even tho it's been weeks and I don't remember her name. The villains to the point I read are pretty good -- an ever present threat of mysterious and possibly many culprits.
Cons:
Way, way too many points of view. I stopped counting at 7. It's the prime reason why I don't care about most of the characters or remember their names even when I like them. There's just too many points of view so almost none of the characters have enough book space for the author to properly develop them. This literally killed the book for me. Actually it killed my desire to read. For weeks.
The main male is more villain than hero. He agreed to marry the main female then locks her up & eschews her for her sister, all while bad mouthing her as unfit to rule when he never spent any time with her getting to know her. He is actually unfit to rule as he is blind to the woes of his own kingdom and starts off a peace mission to secure a ceasefire through marriage by murdering an inn full of people in her country for no real reason. Plus, he constantly makes promises he does not keep. And it's gross of him to pine for the sister behind the main female's back.
*****
As much as I really wanted to see what happened to the main female character, it wasn't enough for me to keep trying to slog thru this book. There was a lot of potential here that just fell short.
Hence, 3 stars.
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Reviewed in the United States on June 19, 2021
★★★★★ 5
Fae Courts with High Intrigue
Format: Kindle
This book is one that just builds and builds and then surprises you to no end. You may think you know the villains and then you are jolted in another direction. Princess Reyna is a real gem, strong of character, a fierce fighter, and loyal to her family and kingdom. Just when you think she and Lorcan, well you know, the plot is flipped. Can't wait to see where this goes in book two.
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Reviewed in the United States on July 7, 2023
★★★★★ 4
Slow, sorry but good
Format: Kindle
This was a slow moving book. Lots of character pov chapters, lots of superfluous descriptions and endless courtly appearances stalled this book to start. Once you get into the heart of the story, it takes off. Before you know it the book is done. My favorite character is Reyna. She is so strong. She is true to herself. She gets into a lot of trouble with her headstrong ways but it's entertaining. I have high hopes for Lorcan. He is honorable to a fault. Thane had turned out to be better than I thought but i still don't like him. Eislin is useless. Great plot twists at the end. I'm looking forward too book 2.
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Reviewed in the United States on June 6, 2020
★★★★★ 5
Very detailed! Beautiful world building! Strong Heroine!
Format: Kindle
Starts off a little slow and confusing with different POV’s, but starts to all come together towards the middle to make an elaborate plot line and makes it all worth it. Beautiful world building and attention to detail as well as great writing. The cliffhanger was gut wrenching! Can’t wait for the next book!
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Reviewed in the United States on March 4, 2020
★★★★★ 4
Interesting
Format: Kindle
This was a very captivating book once you got into it thoroughly. But the third person perspective was a bit hard to get used to. But as you got into it and followed the different characters, it was interesting and filled with intrigue, conflict and forbidden love.
I can’t wait to read the next one and to complete the series.
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Reviewed in the United States on November 12, 2022