This document is a user guide for the SPA IP Phone series, which includes the SPA921, SPA922, SPA941, and SPA942 models. It provides instructions on how to use the phones and includes definitions of technical terms, cautions, and special notes. The SPA IP Phone series is manufactured by Linksys, a registered trademark of Cisco Systems, Inc.
This guide introduces the Linksys SPA921, SPA922, SPA941 and SPA942 VoIP phones, describing their basic functions, voice line capabilities, and network connectivity. It explains how the phones use standard SIP‑based VoIP and provides an overview of the hardware layout and regulatory compliance.
The manual walks you through assembling the phone, connecting power and Ethernet, mounting options, and configuring basic settings such as speed dial, call forwarding, and voicemail. Appendices include regulatory information and contact details for Linksys support.
| Voice Lines (SPA921) | 1 |
|---|---|
| Voice Lines (SPA922) | 1 |
| Ethernet Ports (SPA921) | 1 |
| Ethernet Ports (SPA922) | 2 |
| Power over Ethernet (PoE) support | Supported on SPA922 and SPA942 |
| Telephone jack type | RJ‑11 (USOC) |
| FCC compliance | Part 68 of the FCC Rules |
The SPA921 and SPA922 support one voice line, while the SPA941 and SPA942 support two to four voice lines.
Yes, the SPA922 (and SPA942) can be powered via Power over Ethernet when connected to a PoE‑enabled switch.
The phones use a standard USOC RJ‑11 telephone jack.
Select the "Factory Reset" option from the phone’s Setup menu.