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Cisco SPA122 VoIP ATA & Router 2 x RJ-11 FXS, 2 x 10/100 WAN/PC Ports

Model: SPA122 / Item No: 356240

Cisco SPA122 VoIP ATA & Router 2 x RJ-11 FXS, 2 x 10/100 WAN/PC Ports

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Protect and extend your analog investments

Protect and extend your investment in existing analog telephones, conference speakerphones, and fax machines with the Cisco SPA122 ATA with Router. More easily control your migration to IP voice with this extremely affordable, reliable solution.

The Cisco SPA122 is compact in design and compatible with international voice and data standards. It can be used with residential, home-office, and small-business-VoIP service offerings, including full-featured IP Centrex environments. This easy-to-use solution delivers advanced features to better connect employees and serve customers, all on a highly secure Cisco network.

The Cisco SPA122 ATA with Router:

  • Enables high-quality VoIP service with a comprehensive feature set through a broadband Internet connection
  • Uses advanced voice quality-of-service (QoS) capabilities and the voice Session Initiation Protocol (SIP) stack
  • Supports reliable faxing with simultaneous voice and data use
  • Is compatible with all industry voice and data standards and common telephone features
  • Includes a simple-to-use web-based configuration utility for easy deployment

The Cisco SPA122 ATA with Router includes two standard telephone ports, each with an independent phone number, for use with fax machines or analog phone devices. It also features one fast Ethernet WAN port, and one fast Ethernet LAN port for a local home or business network connection.

Features and Benefits


The Cisco SPA122 provides an easy-to-use VoIP solution that offers:


 Toll-quality voice and carrier-class feature support: The Cisco SPA122 delivers clear, high-quality voice communication under a variety of network conditions. Excellent voice quality in challenging, changeable IP network environments is made possible through the advanced implementation of standard voice coding algorithms. The Cisco SPA122 is interoperable with common telephony equipment such as fax, voicemail, private branch exchanges (PBXs) and key telephone systems (KTSs), and interactive voice response systems.


 Large-scale deployment and management: The Cisco SPA122 enables service providers to provide customized services to their subscribers. It can be remotely provisioned and supports dynamic, in-service software upgrades. A highly secure profile upload saves providers the time and expense of managing and preconfiguring or reconfiguring customer premises equipment (CPE) for deployment.


 Outstanding security: The Cisco SPA122 supports highly secure, encryption-based methods for communication, provisioning, and servicing.


 Compact size: Designed for small spaces, the Cisco SPA122 can be installed as a desktop unit or mounted on a wall.


 Comprehensive feature set: The standards-based Cisco SPA122 is compatible with Internet VoIP provider features such as caller ID, call waiting, voicemail, call forwarding, distinctive ring, and much more to provide a complete, affordable, and highly reliable VoIP solution.


 Easy installation and changes: The web-based configuration utility enables quick deployment and easy changes.


 Investment protection: Businesses that are growing rapidly can use the solution with other Cisco Unified Communications solutions, providing industry-leading investment protection.


 Peace of mind: Cisco solutions deliver the solid reliability you expect from Cisco. All solution components have been rigorously tested to help ensure easy setup, interoperability, and performance.


Table 1 lists the specifications for the Cisco SPA122 ATA with Router.




*Note: Many specifications are programmable within a defined range or list of options. Please see the Cisco SPA100 Series Administration Guide for details. The configuration profile is uploaded to the Cisco SPA122 at the time of provisioning.

Data networking

MAC address (IEEE 802.3)

IPv4 (RFC 791) upgradeable to IPv6 (RFC 1883)

Address Resolution Protocol (ARP)

Domain Name System (DNS) A record (RFC 1706) and SRV record (RFC 2782)

Dynamic Host Configuration Protocol (DHCP) server and client (RFC 2131)

DHCP client reservation

DHCP Options 159 and 160

Point-to-Point Protocol over Ethernet (PPoE) client (RFC 2516)

Internet Control Message Protocol (ICMP) (RFC 792)

TCP (RFC 793)

User Datagram Protocol (UDP) (RFC 768)

Real Time Protocol (RTP) (RFC 1889) (RFC 1890)

Real Time Control Protocol (RTCP) (RFC 1889)

Differentiated Services (DiffServ) (RFC 2475) and type of service (ToS) (RFC 791/1349)

VLAN tagging (IEEE 802.1p)

Simple Network Time Protocol (SNTP) (RFC 2030)

Upload data rate limiting: static and automatic

QoS voice packet prioritization over other packet types

MAC address cloning

Port forwarding

SIP channels support both UDP and TCP transport

VPN pass-through with IP Security encapsulating security payload (IPsec ESP), Point-to-Point Tunneling Protocol (PPTP), and Layer 2 Tunneling Protocol (L2TP)

Voice gateway

SIPv2 (RFC 3261, 3262, 3263, and 3264)

SIP proxy redundancy: dynamic through use of DNS SRV A records

Reregistration with primary SIP proxy server

SIP support in Network Address Translation (NAT) networks (including Serial Tunnel [STUN])

Highly secure (encrypted) calling using Secure RTP (SRTP)

Codec name assignment

G.711 (A-law and μ-law)

G.726 (32 kbps)

G.729 A

Dynamic payload

Adjustable audio frames per packet

Dual-tone multifrequency (DTMF): in-band and out-of-band (RFC 2833) (SIP information)

Voice features

QoS (Ethernet port upstream bandwidth control)

Independent configurable dial plans with interdigit timers and IP dialing (1 per port)

Call progress tone generation

Jitter buffer: Adaptive

Frame loss concealment

Full-duplex audio

Echo cancellation (G.165 and G.168)

Voice activity detection (VAD)

Silence suppression

Comfort noise generation (CNG)

Attenuation and gain adjustments

Flash hook timer

Message waiting indicator (MWI) tones

Visual messaging waiting indicator (VMWI) using frequency shift keying (FSK)

Polarity control

Hook flash event signaling

Caller ID generation (name and number): Bellcore, DTMF, and European Telecommunications Standards Institute (ETSI)

Streaming audio server: Up to 10 sessions

Music on hold

Call waiting, call waiting and caller ID

Caller ID with name and number

Caller ID blocking

Selective and anonymous call rejection

Call forwarding: No answer, busy, and all

Do not disturb

Call transfer, call return, and call back on busy

Three-way conference calling with local mixing

Per-call authentication and associated routing

Call blocking with toll restriction

Distinctive ringing: Calling and called number

Off-hook warning tone

Advanced inbound and outbound call routing

Hotline and warmline calling

Long silence (configurable time setting) silence threshold

Disconnect tone (for example, reorder tone)

Configurable ring frequency

Ring validation time setting

Tip and ring voltage adjustment setting

Ring indication delay setting

Fax capability

Fax tone detection pass-through

Fax pass-through using G.711

Real-time fax over IP using T.38 fax relay (T.38 support is dependent on fax machine and network and transport resilience)


Password-protected system reset to factory default

Password-protected administrator and user access authority

Provisioning, configuration, and authentication

HTTPS with factory-installed client certificate

HTTP digest: Encrypted authentication using MD5 (RFC 1321)

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

SIP Transport Layer Security (TLS)

Provisioning, administration, and maintenance

Web browser administration and configuration using integral web server

Telephone keypad configuration with interactive voice prompts

Automated provisioning and upgrade using HTTPS, HTTP, and Trivial File Transfer Protocol (TFTP)


Asynchronous notification of upgrade availability using Notify

Nonintrusive, in-service upgrades

Report generation and event logging

Statistics in Bye message

Debug and syslog server records: Per-line configurable web browser

Ping and traceroute diagnostics

Configuration management: Backup and restore

Support for Bonjour

Physical interfaces

1 WAN 100BASE-T RJ-45 Ethernet Port (IEEE 802.3)

1 LAN 100BASE-T RJ-45 Ethernet Port (IEEE 802.3)

2 RJ-11 FXS phone ports for analog circuit telephone device (tip and ring)

Reset button

Subscriber line interface circuit (SLIC)

Ring voltage: 40-90 Vpk configurable

Ring frequency: 20-25 Hz

Ring waveform: Trapezoidal

Maximum ringer load: 5 ringer equivalence numbers (RENs)

On-hook voltage (tip and ring): -46 to -56V

Off-hook current: 18-25 mA

Terminating impedance: 600 ohm resistive or 270 ohm + 750 ohm

150 nF complex impedance

Frequency response: 300-3400 Hz

Return loss (600 ohm, 300-3400 Hz): up to 20 dB

Insertion loss (1 Vrms at 1 kHz): 3-4 dB

Total harmonic distortion (THD) (350 mV peak at 300 Hz): up to 3%

Idle channel noise: 72 dB (typical)

Longitudinal balance: 55 dB (typical)

Off-hook threshold (line seizure): Rdc < 1000 ohm

On-hook threshold (line release): Rdc >10000 ohm

Rdc DC supervisory range: Rdc > 450 ohm

Regulatory compliance

FCC (Part 15 Class B), CE, ICES-003, A-Tick certification, Restriction of Hazardous Substances (RoHS), and UL

Power supply

DC input voltage: 5V DC at 2.0A maximum

Power consumption: 5W

Switching type (100-240V) automatic

Power adapter: 100-240V and 50-60 Hz (26-34 VA) AC input, with 1.8m cord

Indicator lights and LEDs

Phone 1, phone 2, Internet, and power


Quick Start Guide

Administration Guide (available online)

Provisioning Guide (available online)



Dimensions (W x H x D)

3.98 x 3.98 x 1.10 in. (101 x 101 x 28 mm)

Unit weight

5.40 oz (153g)

Operating temperature

32 to 113ºF (0 to 45ºC)

Storage temperature

-77 to 158ºF (-25 to 70ºC)

Operating humidity

10 to 90% noncondensing

Storage humidity

10 to 90% noncondensing

Package Contents

Cisco SPA122 ATA with Router

5V/2A power adapter

6-ft (1.83m) Ethernet cable

Quick Start Guide

CD with documentation, including license and warranty


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