10 Best Analog Telephone Adapter Ata of 2025

Main Highlights

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  Supports 2 SIP profiles through 2 FXS ports and a single 10/100Mbps port
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  TLS and SRTP security encryption technology to protect calls and accounts
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  Automated provisioning options include TR-069 and XML config files
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  LED indicators - POWER, NET, PHONE1, PHONE2 Supports 3-way voice conferencing Failover SIP server automatically switches to secondary server if main server loses connection
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  Supports T.38 Fax for creating Fax-over-IP
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  Supports a wide range of caller ID formats
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  Use with Grandstreams UCM series of IP PBXs for Zero Configuration provisioning
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  Grandstream strongly recommends all HT802 v2 to be upgraded to 1.0.19.11 or latest version immediately

Main Highlights

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  Supports 2 SIP profiles and 2 FXS ports
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  Strong AES encryption with security certificate per unit
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  Supports T.38 Fax for reliable Fax-over-IP
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  High performance NAT router
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  3-way voice conferencing per port
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  Exceptional voice quality with wideband HD codec

Main Highlights

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  VERSATILE: IP phone adapter brings traditional analog devices into the IP world
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  AUDIO: Clear, natural-sounding voice quality via advanced preprocessing, high-performance echo cancellation, voice activity detection, and comfort noise generation
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  SECURITY: Supports the latest encryption with Transport Layer Security (TLS), Secure Hash Algorithm (SHA-2) and new Secure Real-time Protocol (sRTP) cipher suites
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  HARDWARE: Two RJ-11 FXS ports and one 10/100 Mbps RJ-45 Ethernet port
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  PEACE OF MIND: 1-year limited hardware warranty

Main Highlights

• 
  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

Main Highlights

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  Single Port Connectivity: Supports 1 SIP profile through a single FXS port and a single 10/100Mbps port
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  Advanced Security Features: TLS and SRTP security encryption technology to protect calls and accounts
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  Flexible Provisioning Options: Automated provisioning options include TR-069 and XML config files
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  Multi-Party Conferencing: Supports 3-way voice conferencing for enhanced communication capabilities
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  Reliable Failover Protection: Failover SIP server automatically switches to secondary server if main server loses connection
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  Fax Capability: Supports T.38 Fax for creating Fax-over-IP
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  Caller ID Compatibility: Supports a wide range of caller ID formats
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  Zero Configuration Setup: Use with Grandstream's UCM series of IP PBXs for Zero Configuration provisioning
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  Comprehensive Telephony Features: Supports advanced telephony features, including call transfer, call forward, call-waiting, do not disturb, message waiting indication, multilanguage prompts, flexible dial plan and more

Main Highlights

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  Grandstream ATAs are trusted and deployed by some of the largest service providers in the world.
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  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

Main Highlights

Main Highlights

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  Reliable ATA with FXS Port & SIP Line: The FLYINGVOICE FWR8101 works as a professional analog telephone adapter with one FXS port and one SIP line, making it easy to connect traditional phones to VoIP networks. A compact VoIP adapter solution for SMBs, enterprises, and remote offices
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  AP Mode & Temporary Router: This VoIP adapter doubles as a temporary Wi-Fi router. With AP mode, 2.4GHz frequency, and 300 Mbps speed, it brings network access to co-working spaces, small offices, or field teams that need instant and stable connections. After first setting up, simply plug it in at a hotel or temporary office to set up your own secure mini-network easily
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  Flexible Repeater Mode for Wider Wi-Fi Coverage: Use FLYINGVOICE FWR8101 as an analog telephone adapter with built-in repeater mode to extend wireless coverage. Ideal for mobile professionals, co-working spaces, or IT consultants who need strong, reliable Wi-Fi alongside VoIP communication
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  Supports T.30 & T.38 Fax over SIP: This VoIP adapter ensures smooth fax transmission via T.30 and T.38 protocols (PBX/ISP registration required). Designed for fax-intensive industries like healthcare, law firms, and government offices, FWR8101 ATA integrates fax machines seamlessly into VoIP networks
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  Better for Business Use instead of Home Use: As a business-grade analog telephone adapter, FWR8101 requires PBX or SIP services and is not suitable for casual users. Perfect for IT professionals, system integrators, and enterprise buyers who need a reliable VoIP adapter for advanced deployments

Main Highlights

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  VERSATILE: IP phone adapter brings traditional analog devices into the IP world
• 
  AUDIO: Clear, natural-sounding voice quality via advanced preprocessing, high-performance echo cancellation, voice activity detection, and comfort noise generation
• 
  SECURITY: Supports the latest encryption with Transport Layer Security (TLS), Secure Hash Algorithm (SHA-2) and new Secure Real-time Protocol (sRTP) cipher suites
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  HARDWARE: Two RJ-11 FXS ports and two 10/100 Mbps RJ-45 Ethernet ports
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  PEACE OF MIND: 1-year limited hardware warranty

Main Highlights

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  Reliable Analog-to-VoIP Conversion: Easily connect your analog phones or fax machines to modern VoIP networks with this compact and efficient ATA device.
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  Secure & Stable Wired Connection: Equipped with a 10/100 Mbps Ethernet port for dependable voice quality and uninterrupted communication
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  Advanced SIP Compatibility: Fully supports SIP protocol and integrates seamlessly with most VoIP service providers and PBX systems.
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  Enhanced Security & Fax Support: Features TLS and SRTP encryption for secure calls, plus T.38 Fax-over-IP for reliable fax transmission.
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  Convenient 2-Pack Bundle: Includes two HT801-V2 unitsideal for small businesses, home offices, or multi-line VoIP setups.