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The Best VoIP Telephone Adapters

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
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!
SaleNo. 2
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
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
SaleNo. 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.
No. 5
Xtreme Technologies XLink BT HD - Only High Definiton Audio Bluetooth Cell to Home Telephone Adapter (One Cell Phone)
  • CONVENIENCE - Use home telephones to make and answer cell phone calls
  • WIDE BAND AUDIO - 16KHz Audio for the clearest quality sound
  • WIRELESS - When cell phone is within Bluetooth range, XLink connects automatically
  • BLUETOOTH VERSION 5
  • PULSE / ROTARY - Fully supports antique telephones
No. 6
VoIP Gateway, PAP2T NA PAP2T 2 Ports Internet Phone Adapter, with Power Adapter, Comes with RJ 45 Network Cable, for Linksys, Support SIP V2 Protocol
  • 【Internet Phone Adapter】Internet phone adapter With the Analog Telephone Adapter , you can easily achieve long distance calls or global calls along with broadband network , router , orinary telephone . (Broadband network + router + Gateway + ordinary telephone = save domestic or international long distance calls or global calls) .
  • 【2 Ports】Brand new small gray box packaging . Phone Adapter with 2 Ports for Voice over IP . The power port is connected to the power source .
  • 【SIP V2 Protocol】VoIP Gateway supports SIP V2 protocol . Compatible with all common phone functions : caller ID , call waiting , voice mail , etc . Support most Internet phone providers , such as Vbuzzer , Voipdiscount , Voipbuster , etc . Support domestic SIP protocol .
  • 【Come With Network Cable】VoIP Gateway comes with a network cable . Interface : phone1 and phone2 are used to connect to ordinary telephones , and two different SIP accounts can be set up to make calls at the same time . The intenet port is connected to the LAN port of the router .
  • 【Lightweight & Portable】Unlocked VoIP Gateway is lightweight and portable . If you want to know more , please read the instruction manual and VoIP setup manual .
SaleNo. 8
FLYINGVOICE FTA1101, Analog Telephone Adapter - Foldable & Detachable US Plug, Mini Portable VoIP Adapter for SMEs, SOHO, ATA with AP Mode
  • 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, 1 FXS, and 1 USB port, this VoIP adapter allows SIP calls, IP sharing, and high-quality connections with QoS support for analog phone. The USB port also supports file and data sharing, offering an all-in-one VoIP solution for businesses and home work users. (This FTA1101 ATA have 1 SIP line)
  • Built-In US Plug: Are you tired of dealing with tangled and messy cables? This FLYINGVOICE FTA1101 analog telephone adapter comes with a built-in 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 built-in 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 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 & FTP Server for File Sharing: This analog telephone adapter offers easy setup and includes an FTP server for file sharing across your LAN. It 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
SaleNo. 9
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
No. 10
Poly (Plantronics + Polycom) OBiWiFi5G USB USB Wi-Fi Accessory for VoIP Adapters (1517-49585-001)
  • USB WI-FI ACCESSORY FOR VOIP ADAPTERS
  • Simply transform your VoIP adapter or phone to connect to the internet
  • Workplace freedom by enabling Wi-Fi you can place your device anywhere within the range of your Wi-Fi network
  • Wireless data encryption provides a high level of security

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Last update on 2025-05-22 / Affiliate links / Images from Amazon Product Advertising API