Based on the Session Initiation Protocol (SIP), the Cisco^® SPA941 4-Line IP Phone (Figure 1) has been tested to 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 SPA941 addresses the requirements of traditional business users while building on the advantages of IP telephony. Features such as easy station moves and shared line appearances (across local and geographically dispersed locations) are just some of the many advantages of the SPA941.

The Cisco SPA941 uses standard encryption protocols to perform secure remote provisioning and unobtrusive in-service software upgrades. Secure remote provisioning tools include detailed performance measurement and troubleshooting 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

• Four voice lines and up to eight call appearances

• Pixel-based display: 128 x 64 monochrome graphical liquid crystal display (LCD)

• Line status: active line indication, name and number

• Menu-driven user interface

• Shared line appearance**

• Speakerphone

• Call hold

• Music on hold**

• Call waiting

• Caller ID name and number

• Outbound caller ID blocking

• Call transfer: attended and blind

• Three-way call conferencing with local mixing

• Multiparty conferencing via external conference bridge**

• Automatic redial of last calling and last called numbers

• On-hook dialing

• Call pickup: selective and group**

• Call park and unpark**

• Call swap

• Call back on busy

• Call blocking: anonymous and selective

• Call forwarding: unconditional, no answer, on busy

• Hot line and warm line automatic calling

• Call logs (60 entries each): made, answered, and missed calls

• Redial from call logs

• Personal directory with auto-dial (100 entries)

• Do not disturb (callers hear line busy tone)

• Digits dialed with number auto-completion

• Uniform Resource Identifier (URI) (IP) dialing support (vanity numbers)

• On-hook default audio configuration (speakerphone and headset)

• Multiple ring tones with selectable ring tone per line

• Ability to call number using name: directory matching or via caller ID

• Subsequent incoming calls with calling name and number

• Date and time with intelligent daylight savings support

• Call duration and start time stored in call logs

• Call timer

• Name and identity (text) displayed at startup

• Distinctive ringing based on calling and called number

• 10 user-downloadable ring tones

• Speed dialing, eight entries

• Configurable dial/numbering plan support

• Intercom**

• Group paging**

• Network Address Translation (NAT) Traversal, including STUN support

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

• Syslog, debug, report generation, and event logging

• Secure call encrypted voice communication support

• 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

Hardware Features

• Pixel-based display: 128 x 64 monochrome graphical LCD

• Dedicated illuminated buttons for:

– Audio mute on/off

– Headset on/off

– Speakerphone on/off

• Four soft-key buttons

• Four-way rocking directional knob for menu navigation

• Voicemail message waiting indicator light

• Voicemail message retrieval button

• Dedicated hold button

• Settings button for access to feature, setup, and configuration menus

• Volume control rocking up/down knob to control handset, headset, speaker, and ringer

• Standard 12-button dialing pad

• High-quality handset and cradle

• Built-in high-quality microphone and speaker

• Headset jack: 2.5 mm

• Ethernet LAN: 10BASE-T RJ-45

• 5 VDC universal (100-240V) switching power adapter

• LED test function

Regulatory Compliance

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

Security Features

• Password-protected system, preset to factory default

• 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

Documentation

• Quick-start installation and configuration guide

• User guide

• Administration guide

• Provisioning guide (for service providers only)

Package Contents

• Cisco SPA941 IP Phone, handset, and stand

• Handset cord

• 5V power adapter

• RJ-45 Ethernet cable

• Quick-start installation and configuration guide

Specifications

Table 1. Specifications for the Cisco SPA941 4-Line IP Phone with 1-Port Ethernet