Cisco SPA112 IP phone / endpoint
Brand: Cisco | Category: Accessories & Components
SKU: CSC-SPA112 | Part #: SPA112 | MPN: SPA112
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About the Cisco SPA112 IP phone / endpoint
The Cisco SPA112 is a 2-port analog telephone adapter (ATA) that bridges traditional analog phone systems with modern IP-based networks, enabling enterprises to leverage existing analog handsets and fax machines within SIP-compliant VoIP infrastructures. This compact endpoint delivers carrier-grade voice quality and feature-rich telephony capabilities in a footprint measuring 130 x 100 x 28 mm, making it ideal for distributed office environments, branch locations, and hybrid communication deployments.
The SPA112 supports two FXS ports (RJ-11) for analog devices and connects to your network via dual Fast Ethernet interfaces—one WAN port and one LAN port, each rated at 10/100BASE-T. Cisco engineered this adapter with robust voice quality features including VAD, CNG, acoustic echo cancellation, and adaptive jitter buffer, while supporting multiple codecs: G.711 (a-law and μ-law), G.722, G.726 (16/24/32/40 kbps), and G.729a. The device also handles T.38 fax relay and G.711 fax passthrough for seamless fax integration. Network administrators appreciate its SIP (RFC 3261) signaling protocol, IEEE 802.1p/Q VLAN tagging, ToS/DSCP QoS support, and STUN-based NAT traversal for reliable performance across complex topologies. Security is addressed through SRTP media encryption, SIP over TLS, and HTTPS management interfaces.
Network engineers and IT procurement teams standardizing on Cisco Unified Communications Manager (UCM), Webex Calling, or third-party SIP platforms will find the SPA112 essential for migrating analog legacy systems without capital reinvestment. The adapter auto-provisions via TFTP, HTTP, or HTTPS, supports TR-069 (CWMP) management, and includes an embedded web GUI for simplified configuration. Operating reliably between 0°C and 40°C with external 5V DC power, the Cisco SPA112 (part number SPA112) delivers call hold, call transfer, three-way conferencing, caller ID, call forwarding, speed dial, and do not disturb functionality. For detailed specifications, bulk pricing, or technical integration support for the SPA112, please submit your RFQ through Omnixon Global.
Technical Specifications
| Brand | Cisco |
| Category | Accessories & Components |
| SKU | CSC-SPA112 |
| Part Number | SPA112 |
| Condition | New |
| Interface | SIP/SCCP |
| Manufacturer Part Number | SPA112 |
| Device Type | 2-Port Analog Telephone Adapter (ATA) |
| FXS Ports | 2 x RJ-11 |
| WAN Interface | 1 x RJ-45 Fast Ethernet (10/100BASE-T) |
| LAN Interface | 1 x RJ-45 Fast Ethernet (10/100BASE-T) |
| Signaling Protocol | SIP (RFC 3261) |
| Supported Voice Codecs | G.711 (a-law, μ-law), G.722, G.726 (16/24/32/40 kbps), G.729a |
| Fax Support | T.38 fax relay, G.711 fax passthrough |
| Voice Quality Features | VAD, CNG, acoustic echo cancellation, adaptive jitter buffer |
| QoS Support | IEEE 802.1p/Q VLAN tagging, ToS/DSCP |
| NAT Traversal | STUN |
| Security | SRTP media encryption, SIP over TLS, HTTPS management |
| Provisioning | TFTP, HTTP, HTTPS auto-provisioning; TR-069 (CWMP); embedded web GUI |
| Telephony Features | Call hold, call transfer, call waiting, three-way conferencing, caller ID, call forwarding, do not disturb, speed dial |
| Power Input | External AC adapter (5V DC) |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Dimensions (W x D x H) | 130 x 100 x 28 mm |
| Regulatory Compliance | FCC, CE, A-Tick |
| UC Platform Compatibility | Cisco Unified Communications Manager (UCM), Webex Calling, third-party SIP platforms |
Frequently Asked Questions about Cisco SPA112 IP phone / endpoint
What does the Cisco SPA112 IP phone / endpoint do?
The Cisco SPA112 IP phone / endpoint is enterprise IT hardware deployed in production data centers, server rooms, and edge sites across the GCC and EMEA region.