VOIP - Snom 820

Snom's 820 VoIP phone is the first model in a new series of business grade IP phones. With this new product, snom merges the two key requirements of modern telephony in one device: mature VoIP technology and a design that combines stylistic flair and a riugged construction suited to the most demanding business environments.

With its large high-resolution TFT color display (3.5”, 320 x 240 pixels) the snom-820 offers a brilliant depiction of call lists, phone directories, and caller information via the integrated XML browser.

The wideband technology used in the handset captures more than double of the spectrum of voice frequencies that by standard phones. This means the audio quality can be compared to FM radio. On speakerphone a Class D amplifier reliably suppresses interference noise.

Additionally, the new SNOM-820 optional WiFi client USB module enables you to install the phone in any environment. Whatever you prefer, the snom 820 is prepared for any option: Power over plug, Power over Ethernet (PoE) or WiFi.

The SNOM-820 supports secure VPN, TLS and SRTP ensuring rigorous security at all times.

A wide range of functions that are particularly relevant to business users are offered, including 5-way conferencing, multiple ringtones, and up to twelve different SIP identities.

Product Features

Product Specification

General Features
- Weight, with footstand: approx. 900g
- without footstand: approx. 670g
- Safety: IEC 60950-1:2001,
- CB Test-Certificate: DE 2-008417
- Certifications: FCC Class B, CE Mark
- Power consumption: 2.8 – 4.3 watts

Connectors
- 1 x LAN , 1 x PC: RJ45 (Ethernet)
- Power 5V DC
- Ethernet: 2 x IEEE 802.3 10/100 Mbps Switch
- Power over Ethernet: IEEE 802.3af, Class 2
- Handset: RJ-4P4C connector
- Headset: RJ-4P4C connector
- USB 2.0 Full/Low Speed host interface

User Interface
- High-resolution TFT color display
- 3.5”, 320 x 240 pixels
- 37 keys, 9 LEDs
- 4 freely programmable and 16 customizable function keys
- Comfortable and intuitive menu structure
- Incoming call indication via LED
- Caller identification on display
- LED indications for missed calls and new messages
- Directory (250 entries)
- Import/export of directory
- Speed dial
- Local dial plan
- Lists of missed, received, and dialed calls (100 entries each)
- Indication of calls on hold
- Clock with automatic daylight-saving time, call duration
- Call blocking (deny list)
- Blocking of anonymous calls
- Handling of up to 12 calls simultaneously
- Auto answer mode
- Ringtone selection, VIP ringtones, import of individual ringtones
- URL dialing support
- Multiple language sppoort
- DND mode (do not disturb)
- Speakerphone (full duplex)
- Keyboard lock

Additional Functions
- Extremely easy WiFi connection via USB
- Hold
- Unattended and attended transfer
- Hold music (if supported by PBX)
- Call forwarding
- 5-way conferencing (bridge on phone)
- Call park, call pickup (if supported by PBX)
- Call completion on busy/not available
- Client Matter Code (CMC)
- Call waiting/switching between calls
- Redialing
- RTP multicast paging
- Multiple audio device support

Web Server
- Embedded HTTP/HTT PS web server
- Remote configuration possible
- Dial from web interface or snom Flexor CTI
- Password protection
- Diagnostics (tracing, logging, syslog)

Security, Quality of Service
- HTTPS (server/client)
- Transport Layer Security (TL S)
- SRTP (RF C 3711), SIPS, RT CP, VLAN (802.1pq)

Codecs, Audio
- Stereo wideband audio
- G.711 a-law, μ-law
- G.722, G.723.1, G.726, G.729AB, GSM
- iLBC
- Comfort noise generation (CNG)
- Voice activity detection (VAD)

SIP
- RFC 3261 compliance
- UDP, TCP, and TLS
- Digest/basic authentication
- Loose routing and strict routing
- PRACK (RF C 3262)
- Error information support
- Reliability of provisional responses (RF C 3262)
- Early media support
- DNS SRV (RF C 3263), redundant server support
- Offer/answer (RF C 3264)
- Message Waiting Indication (RF C 3842),
- subscription for MWI events (RF C 3265)
- Dialog-state monitoring (RF C 4235)
- In-band/out-of-band/SIP INFO DTMF
- STUN client (NAT traversal)
- ENUM (RF C 3261), NA PTR , (RFC 2915),
- rport (RF C 3581), REFER (RFC 3515)
- Event list subscription support (RFC 4662)
- Bridged line appearance (BLA)
- Auto provisioning with PnP
- Presence/buddylist feature
- Busy lamp field support (BLF)
- Presence publishing

Installation
- Automatic software updates
- Automatic settings retrieval via HTTP/HTTPS/TFTP
- Configuration via web interface
- Static IP, DHCP
- NTP