Looking for the best VoIP Telephone Adapters?
Discover now our comparison of the best VoIP Telephone Adapters. It is never easy to choose from the wide range of offers. On the market, you will find an incalculable number of models, all at different prices. And as you will discover, the best VoIP Telephone Adapters are not always the ones at the highest prices! Many criteria are used, and they make the richness and relevance of this comparison.
To help you make the best choice among the hundreds of products available, we have decided to offer you a comparison of the VoIP Telephone Adapters in order to find the best quality/price ratio. In this ranking, you will find products listed according to their price, but also their characteristics and the opinions of other customers. Also discover our comparisons by categories. You won’t have to choose your products at random anymore.
SaleNo. 1
Grandstream 2-FXS Port Analog Telephone Adapter (HT802)
- Supports 2 SIP profiles through 2 FXS ports and a single 10/100Mbps port
- TLS and SRTP security encryption technology to protect calls and accounts
- Automated provisioning options include TR-069 and XML config files
SaleNo. 2
magicJack VOIP Phone Adapter - Unlimited Calls to US & Canada, No Monthly Bill, Portable Internet Phone with App, magicIN™ & magicOUT™ Service
- UNLIMITED CALLING, NO MONTHLY BILLS: Enjoy 12 months of free local and long-distance calls to the U.S., Canada, Puerto Rico, and the Virgin Islands—plus Caller ID, Voicemail, Call Waiting, Call Forwarding, 411, and Conference Calling—all included with no hidden fees. Save big compared to traditional phone services!
- WORK-FROM-HOME READY: Experience crystal-clear calls with upgraded voice quality, even on busy networks. Features a faster CPU (4x speed) and more memory for reliable performance—perfect for remote work or home office needs
- FREE MOBILE APP FOR ON-THE-GO CONVENIENCE: Download the magicJack app to make unlimited calls and send texts to U.S. numbers from your smartphone. Syncs with your home phone to ring both devices simultaneously—stay connected anywhere!
- EASY SETUP, VERSATILE USE: Plug into your high-speed internet and any cordless or landline phone—or use with your computer. Comes with step-by-step instructions, ethernet cord, USB extension, and power adapter for hassle-free installation.
- KEEP YOUR NUMBER & TRUSTED QUALITY: Port your existing number for a one-time $19.95 fee and enjoy free magicJack-to-magicJack calls worldwide, low international rates, and a 1-year warranty. Buy new from magicJack for a guaranteed working unit—avoid used devices!
−17%
$49.88
Buy On Amazon
No. 3
Grandstream HandyTone 801 Single-Port Analog Telephone Adapter (HT801)
- Grandstream ATAs are trusted and deployed by some of the largest service providers in the world.
- Supports 1 SIP profile through a single FXS port and a single 10/100Mbps 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
$48.99
Buy On Amazon
No. 4
Ooma Telo VoIP Free Internet Home Phone Service. Affordable landline replacement. Unlimited nationwide calling. Call on the go with free mobile app. Low international rates. Can block robocalls, black
- Crystal-clear nationwide calling for free and low International rates. Pay only monthly applicable taxes and fees.
- # 1 rated home phone service for overall satisfaction and value by a leading consumer research publication.
- Pure Voice HD delivers superior voice quality for a consistently great calling experience.
- Includes nationwide calling, voicemail, caller-ID, call-waiting, 911 calling and text alerts.
- More features including the ability to block robocallers available when you upgrade to Ooma Premier phone service.
- Download the Ooma mobile app and take your Ooma service on-the-go.
- Easy install in minutes; works with your high-speed internet and any home phone.
- Ooma Telo also works with optional Ooma smart security sensors to monitor your home and contact you when activity is detected. Refer to the PDF attached below in technical specification for user manual.
$79.99
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No. 5
Grandstream HT802 V2 2 FXS Port Aanalog Telephone Adapter (HT802-V2)
- Supports 2 SIP profiles through 2 FXS ports and a single 10/100Mbps port
- TLS and SRTP security encryption technology to protect calls and accounts
- Automated provisioning options include TR-069 and XML config files
- LED indicators - POWER, NET, PHONE1, PHONE2 Supports 3-way voice conferencing Failover SIP server 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 provisioning
No. 6
Polycom Inc. OBI 300 Voice Adapter USB 1 FXS ATA, PY-2200-49530-001 (Needs Paid Subscription)
- Polycom OBI 300 Voice Adapter USB 1 FXS ATA, PY-2200-49530-001
- Item Package Dimension: 8.070L x 4.88W x 1.53H inches
- Item Package Weight - 0.52 Pounds
- Compatibility: Compatible with Google Workspace Voice Paid Version ONLY, Will NOT Work With Free Version. Setup is done on workspace admin not obitalk.
- Product Type - ELECTRONIC ADAPTER
$33.99
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No. 7
Grandstream HT801 v2 1 FXS, 1 Fast Ethernet New Version
- Supports 1 SIP profile through a single FXS port and a single 10/100Mbps port
- Use with Grandstream’s UCM series of IP PBXs for Zero Configuration provisioning
- Failover SIP server automatically switches to secondary server if main server loses connection
- TLS and SRTP security encryption technology to protect calls and accounts
$41.96
Buy On Amazon
No. 9
FLYINGVOICE FTA5111 Analog Telephone Adapter, 1 FXS & 1 FXO Ports, Stand-Alone Survivability, Call Routing, 3-Way Conference, VoIP Adapter for SMEs, Supports Fax Over IP
- Seamless Analog to VoIP Conversion: Equipped with 1 FXS port and 1 SIP line, the Flyingvoice FTA5111 analog telephone adapter (ATA) enables you to connect an analog phone to a VoIP network, ensuring high-quality voice communication. Whether for call center, office, or small business use, this ATA supports crystal-clear audio and stable connectivity, making it a reliable solution for transitioning to VoIP
- PSTN Connectivity with 1 FXO Port: The built-in FXO port allows seamless integration with the Public Switched Telephone Network (PSTN), ensuring uninterrupted service even if your VoIP network goes down. This feature makes the Flyingvoice FTA5111 VoIP telephone adapter an ideal choice for businesses requiring a failover solution and users needing access to both VoIP and traditional telephone lines
- SAS for Emergency Communication: The FTA5111 gateway features SAS (Stand-Alone Survivability), allowing it to function as an independent device in case of network failures. As a temporary voice switch, it can assign up to 50 extension numbers, ensuring that internal calls, emergency dialing, and key business communications remain operational even without an active VoIP server. This makes it an essential solution for businesses, hotels, and emergency response scenarios where reliability is crucial
- Advanced SIP V2 Protocol for Enhanced Compatibility: Supporting SIP V2, the Flyingvoice FTA5111 VoIP adapter ensures broad compatibility with leading VoIP service providers and PBX systems. Its robust SIP-based architecture guarantees secure, efficient, and flexible communication, making it an excellent choice for businesses looking for a future-proof VoIP solution
- Effortless Installation & Easy Integration: Designed for plug-and-play convenience, the FTA5111 ATA supports auto-provisioning and remote management, making installation quick and hassle-free. With its compact design and user-friendly web interface, integrating this device into your existing VoIP or PSTN setup is simple, even for those with minimal technical expertise
SaleNo. 10
FLYINGVOICE FTA1101, Analog Telephone Adapter - Foldable & Detachable US Plug, Work as Travel Wi-Fi Router Through AP Mode, Mini Portable VoIP Adapter for SMEs, SOHO, Hotel
- Pocket-Sized & Portable VoIP Adapter for Analog Phone: The FLYINGVOICE FTA1101 analog telephone adapter fits easily in your pocket, making it a portable solution for business trips, remote work, or home setups. Stay connected with VoIP wherever you go
- Versatile Port Configuration & SIP Support: Equipped with 1 WAN, 1 LAN and 1 FXS port, this VoIP adapter allows SIP calls, IP sharing, and high-quality connections with QoS support for analog phone. Offering an all-in-one VoIP solution for businesses and home work users. (This FTA1101 ATA have 1 SIP line)
- Built-In Foldable US Plug: Are you tired of dealing with tangled and messy cables? This FLYINGVOICE FTA1101 analog telephone adapter comes with a built-in US power supply, eliminating the need for extra cables or adapters. It's designed for hassle-free use, whether at home or in the office
- AP Mode for Seamless Connectivity: With Access Point Mode, this VoIP adapter enhances your network, ensuring a reliable connection in small business or business trip environments. This mode makes this ATA work as a temporary travel Wi-Fi router, share the wireless Internet to other devices. Such as laptop, smart phone, or VoIP phone with Wi-Fi function. Expand your network easily with this versatile analog telephone adapter
- Easy Setup & Support Multiple Fax Protocols: This FTA1101 analog telephone adapter supports T.38, T.30, and G.711 fax standards, making it ideal for SME, SOHO, or home use. FTA1101 ATA equipped with advanced management protocols like SNMP and TR069, it also enables unified deployment and centralized management for enhanced efficiency. We are equipped with professional tech support team, to delivering the best user experience for you
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Last update on 2025-07-07 / Affiliate links / Images from Amazon Product Advertising API