Basic, Affordable, IP Phone for Business or Home Office


Basic 1-line business-class IP phone

Connects directly to an Internet telephone service provider or to an IP private branch exchange (PBX)

Easy installation and secure remote provisioning, as well as web-based configuration

Supports both Session Initiation Protocol (SIP) and Smart Phone Control Protocol (SPCP) with the Cisco Unified Communications 500 Series

Figure 1. Cisco SPA 301 1-Line IP Phone

Comprehensive Interoperability and SIP-Based Feature Set

Based on SIP, the Cisco SPA 301 1-Line IP Phone has been tested to help ensure comprehensive interoperability with equipment from voice over IP (VoIP) infrastructure leaders, enabling service providers to quickly roll out competitive, feature-rich services to their customers.
With hundreds of features and configurable service parameters, the Cisco SPA 301 addresses the requirements of traditional business users while building on the advantages of IP telephony. Features such as easy station moves and shared line appearance (across local and geographically dispersed locations) are just some of the many advantages of the SPA 301.

Carrier-Grade Security, Provisioning, and Management

The Cisco SPA 301 uses standard encryption protocols to perform highly secure remote provisioning and unobtrusivein-service software upgrades. Remote provisioning tools include detailed performance measurement andtroubleshooting features, enabling network providers to deliver high-quality support to their subscribers. Remote provisioning also saves service providers the time and expense of managing, preloading, and reconfiguring customer premises equipment.

Telephony Features

One voice line

Music on hold*

Call waiting

Outbound caller ID blocking**

Call transfer: attended and blind** ( SIP Only )

Three-way call conferencing with local mixing

Multiparty conferencing via external conference bridge

Automatic redial of last calling and last called numbers

Call pickup: selective and group*

Call swap

Call back on busy**

Call blocking: anonymous and selective**

Call forwarding: unconditional, no answer, and on busy**

Hot line and warm line automatic calling

Digits dialed with number auto-completion

Anonymous caller blocking**

Support for Uniform Resource Identifier (URI) (IP) dialing (vanity numbers)

Multiple ring tones with selectable ring tone per line

Call duration and start time stored in call logs in web GUI

Distinctive ringing based on calling and called number

10 user-downloadable ring tones

Speed dialing, eight entries

Configurable dial/numbering plan support


Group paging

Network Address Translation (NAT) Traversal, including Serial Tunnel (STUN) support

DNS SRV and multiple A records for proxy lookup and proxy redundancy

Syslog, debug, report generation, and event logging

Support for highly secure encrypted voice communications

Built-in web server for administration and configuration, with multiple security levels

Automated remote provisioning, multiple methods; up to 256 bit encryption (HTTP, HTTPS, Trivial File Transfer Protocol [TFTP])

Option to require administrator password to reset unit to factory defaults

**Feature requires support by call server.
**Feature activated via feature code

Hardware Features

Voicemail message waiting indicator light

Voicemail message retrieval button

Volume control

Redial Button

Flash Button

Standard 12-button dialing pad

High-quality handset

One Ethernet WAN port 10/100BASE-T RJ-45

5 VDC universal (100-240V) switching power adaptor included

Regulatory Compliance

FCC (Part 15, Class B) ,UL, CE Mark, A-Tick

Security Features

Password-protected system, preset to factory defaults

Password-protected access to administrator and user-level features

HTTPS with factory-installed client certificate

HTTP digest: encrypted authentication via MD5 (RFC 1321)

Up to 256-bit Advanced Encryption Standard (AES) encryption


Quick-start installation and configuration guide

User guide

Administration guide

Provisioning guide (for service providers only)

Package Contents

Cisco SPA 301 IP phone, handset

Handset cord

RJ-45 Ethernet cable

Power adapter

Quick installation guide



Table 1 provides specifications for the Cisco SPA 301 1-Line IP Phone.

Table 1. Specifications for the Cisco SPA 301 1-Line IP Phone
Note: Many features are programmable within a defined range or list of options. Please see the SPA Administration Guide for details. The target configuration profile is uploaded to the SPA 301 at the time of provisioning.



Data networking

MAC address (IEEE 802.3)
IPv4 (RFC 791)
Address Resolution Protocol (ARP)
DNS: A record (RFC 1706), SRV record (RFC 2782)
Dynamic Host Configuration Protocol (DHCP) client (RFC 2131)
Internet Control Message Protocol (ICMP) (RFC 792)
TCP (RFC 793)
User Datagram Protocol (UDP) (RFC 768)
Real Time Protocol (RTP) (RFC 1889, 1890)
Real Time Control Protocol (RTCP) (RFC 1889)
Real Time Control Protocol - Extended Report (RFC 3611)
Differentiated Services (DiffServ) (RFC 2475)
Type of service (ToS) (RFC 791, 1349)
VLAN tagging 802.1p/Q: Layer 2 quality of service (QoS)
Simple Network Time Protocol (SNTP) (RFC 2030)

Voice gateway

SIP version 2 (RFC 3261, 3262, 3263, 3264)
SPCP with the Cisco Unified Communications 500 Series
SIP proxy redundancy: dynamic via DNS SRV, A records
Re-registration with primary SIP proxy server
SIP support in NAT networks (including STUN)
SIPFrag (RFC 3420)
Highly secure (encrypted) calling via Secure Real-Time Transport Protocol (SRTP)
Codec name assignment
Voice algorithms:
G.711 (A-law and -law)
G.726 (16/24/32/40 kbps)
G.729 AB
Dynamic payload support
Adjustable audio frames per packet
Dual-tone multifrequency (DTMF), in-band and out-of-band (RFC 2833) (SIP INFO)
Flexible dial plan support with interdigit timers
IP address/URI dialing support
Call progress tone generation
Jitter buffer: adaptive
Frame loss concealment
Voice activity detection (VAD) with silence suppression
Attenuation/gain adjustments
Message waiting indicator (MWI) tones
Voicemail waiting indicator (VMWI), via NOTIFY, SUBSCRIBE
Caller ID support (name and number)
Third-party call control (RFC 3725)

Provisioning, administration,
and maintenance

Integrated web server provides web-based administration and configuration
Automated provisioning and upgrade via TFTP, HTTP or HTTPS
Asynchronous notification of upgrade availability via NOTIFY
Nonintrusive in-service upgrades
Report generation and event logging
Statistics transmitted in BYE message
Syslog and debug server records: configurable per line

Power supply

Switching type (100-240V) automatic
DC input voltage: +5 VDC at 1.0A maximum

Physical interfaces

One 10/100BASE-T RJ-45 Ethernet port (IEEE 802.3)
Handset: RJ-9 connector

Indicator lights/LED

Message waiting indicator LED

Dimensions (W x H x D)

7.76 x 3.82 x 1.77 inches (194 x 97 x 45 mm)

Unit weight

1.7 lb ( 0.7711 kg)

Operating temperature

32 ~ 113F (0 ~ 40C)

Storage temperature

-13 ~ 185F (-20 ~ 70C)

Operating humidity

5% to 95% noncondensing

Storage humidity

5% to 95% noncondensing


Table 2 compares the SPA 301 with other Cisco Small Business 500 Series IP Phones.

Table 2. Cisco Small Business 500 and 300 Series IP Phones Comparison


Voice Lines

Ethernet Ports

High-Resolution Graphical Display

Power over Ethernet (PoE) Support

SPA 301G





SPA 303G





SPA 501G





SPA 502G





SPA 504G





SPA 508G





SPA 509G





SPA 525G






Tables 3 and 4 provide ordering information for the Cisco SPA 301 and accessories.

Table 3. Ordering Information

Part Number



Cisco SPA 301G, North America power adapter


Cisco SPA 301G, Europe power adapter


Cisco SPA 301G, UK power adapter


Cisco SPA 301G, Australia power adapter


3-year Cisco Small Business Support Service

Specification Sheets / Installation guides / Associated files

Warranty: 1 Year Return to Base

Full manufacturers warranty details are available at the manufacturers (Cisco) web site.

Unless otherwise specified Techbuy is normally your first point of contact for warranty related returns, further information regarding our warranty policies and consumer guarantees is available on our policies and service & support pages.

To apply for return of a product just go to our returns page.

These terms are in addition to and do not affect any terms, conditions, guarantees and warranties implied by law.

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