The Cisco SPA501G 8-Line IP Phoneis basic but feature-packed business IP phone, which supports PoE. It can be connected directly to an Internet telephone service provider or to an IP PBX.
With wideband audio, sound quality is excellent, and this is an excellent choice for professionals who want to take advantage of the benefits of IP telephony (with features such as easy station moves and shared line appearances over different locations, without having to spend a fortune.
It supports up to two Cisci SPA500S expansion modules, to provide up to 64 more buttons.
Features:
Eight voice lines
Four Independent SIP Registrations*
Line status: active line indication
User interface driven by Interactive Voice Response (IVR)
Shared line appearance**
Speakerphone
Call hold
Music on hold**
Call waiting
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
Personal directory with auto-dial (100 entries)
Do not disturb
Digits dialed with number auto-completion
Anonymous caller blocking
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
Date and time with support for intelligent daylight savings
Call start time stored in call logs
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 Simple Traversal of UDP Through NATs (STUN) support
DNS SRV and multiple A records for proxy lookup and proxy redundancy
Syslog, debug, report generation, and event logging
Highly secure call encrypted voice communications 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
Paper label area
Dedicated illuminated buttons for:
Audio mute on/off
Headset on/off
Speakerphone on/off
Voicemail message waiting indicator (VMWI) light
Voicemail message retrieval button
Dedicated hold button
Settings button for access to IVR menu
Volume control rocking up/down knob controls handset, headset, speaker, ringer
Dedicated keys for redial, cancel, conference, and transfer
Standard 12-button dialing pad
High-quality handset and cradle
Built-in high-quality microphone and speaker
Headset jack: 2.5 mm
Two Ethernet ports with integrated Ethernet switch: 10/100BASE-T RJ-45 802.3af-compliant PoE