Cisco SPA112 2 Line Analogue Telephone Adapter - Refurbished

The Cisco SPA112 2 Port Analogue Telephone Adapter delivers clear, high-quality Voice over IP (VoIP) service through a broadband internet connection while protecting existing investments in traditional analogue phones and fax machines. Designed for home offices and small business environments, this compact device features two independent telephone ports, broad standards compatibility, and advanced voice quality-of-service capabilities to ensure reliable daily communication.

Seamless VoIP Integration and Port Flexibility

Engineered to bridge legacy telecommunications hardware with modern IP networks, the unit includes two standard RJ-11 FXS ports that allow users to configure independent telephone numbers for analogue devices or fax machines. It supports simultaneous voice and data use alongside industry-leading Session Initiation Protocol (SIP) stacks to maintain dependable call routing and operational stability across diverse network conditions

Comprehensive Telephony and Fax Capabilities

The adapter incorporates a wide array of calling features, including caller ID name and number presentation, call waiting, call forwarding options, three-way conferencing with local mixing, and distinctive ringing. Additionally, it supports reliable fax pass-through using G.711 and real-time fax over IP via T.38 relay, ensuring uninterrupted document transmission alongside standard voice calls.

Compact Design and Simple Management

Built for tight spaces, the lightweight housing can sit on a desktop or mount easily onto a wall. Deployment and configuration are streamlined through an intuitive web-based utility, automated remote provisioning options via HTTPS, HTTP, and TFTP, and password-protected administrative levels.

Features

• Dual Analogue Line Support - Features two independent RJ-11 FXS ports to connect traditional telephones or fax machines with separate configurations
• High-Quality Audio Performance - Employs advanced QoS capabilities, adaptive jitter buffering, and G.165/G.168 echo cancellation for crystal-clear conversations
• Simultaneous Fax & Voice - Accommodates reliable fax transmissions alongside voice traffic using G.711 pass-through and T.38 relay protocols
• Industry Standard Compatibility - Operates smoothly with common calling features including caller ID, call waiting, voicemail integration, and call forwarding
• Secure Remote Management - Incorporates built-in web browser administration, encrypted configuration options, and password-protected system controls
• Compact Form Factor - Offers a small footprint designed for convenient desktop placement or wall mounting in constrained office spaces

Technical Specifications

Telephony and Networking Interfaces

• WAN Interface - 1 x 100BASE-T RJ-45 Ethernet port (IEEE 802.3)
• Telephone Ports - 2 x RJ-11 FXS ports for analogue circuit telephone devices
• Protocols - SIPv2 (RFC 3261), IPv4 upgradeable to IPv6, DHCP client, PPPoE, and DNS SRV support
• Audio Codecs - G.711 (A-law and µ-law), G.726 (32 kbps), G.729A, and dynamic payload support

Voice and Fax Features

• Call Management - Call waiting, call forwarding (busy, no answer, all), do not disturb, call transfer, and three-way conferencing
• Signalling - In-band and out-of-band DTMF (RFC 2833), hook flash event signalling, and MWI/VMWI tones
• Fax Support - Fax tone detection pass-through, G.711 pass-through, and T.38 real-time fax relay

Security and Administration

• Encryption Standards - HTTPS with factory-installed client certificate, HTTP digest authentication (MD5), and up to 256-bit AES encryption
• Provisioning - Web browser administration, automated provisioning via HTTPS/HTTP/TFTP, and TR-069 support

Physical and Power Specifications

• Dimensions - 101mm x 101mm x 28mm (3.98 Inches x 3.98 Inches x 1.10 Inches) -W x H x D
• Unit Weight - 153g (5.40oz)
• Power Supply - DC Input Voltage of 5V DC at 2.0A switching automatic 100-240V AC adapter included

Standard Package Contents

• Refurbished Cisco SPA112 2 Port Analogue Telephone Adapter
• Ethernet Cable
• Power Adapter
• User Documentation

*Please note - As this is a refurbished product - package contents may vary from the above