Snom 320 User manual

© 2008 snom technology AG
All rights reserved.
Two-line tiltable semi-
graphical display
47 keys, 13 LEDs
12 programmable
function keys
Speakerphone
 2 x IEEE 802.3
10/100 Mbps switch
Power over Ethernet
Headset connection
SIP RFC3261
Security: SIPS/SRTP, TLS
STUN, ENUM, NAT, ICE
 Codecs: G.711, G.729A,
G.723.1, G.722, G.726,
GSM 6.10 (full rate)
National Language Support
 XML driven mini-Browser

Innovative SIP based VoIP Phone
Ideal for the office and everyone who
makes a lot of calls, the snom 320 is an
affordable, yet powerful SIP business
telephone with built-in full duplex
speakerphone and three-party confer-
ence bridging.
A 2 x 24 semi-graphical LCD display
and menu-driven user interface sup-
port easy feature management.
12 programmable keys with LEDs sup-
port flexible identity access/key con-
figuration. A 100 number call memory,
a 100 entry onboard address book (to
which data may easily be uploaded),
custom call blocking, configurable/
downloadable ring-tones, auto-answer
mode, DND and other sophisticated
features ensure convenience and pro-
ductivity. And the snom 320’s built-in
web server supports even simpler end-
user configuration, screen dialing, and
access to call history.
The snom 320 is remote-manageable
and firmware-upgradable, uniquely
easy to install, and largely self-con-
figuring. Broad codec support and full
compatibility with current SIP rec-
ommendations ensure interoperabil-
ity; support for STUN (NAT traversal),
ENUM (for dialed-number resolution)
and other state-of-the-art features
enables flexible deployment behind
local proxies, IP PBXs or hosted VoIP
services.
The snom 320 supports the security
standard SRTP – a current specifi-
cation from the Internet Engineer-
ing Task Force (IETF) for protection
against eavesdropping – and TLS for
protection against sniffing of signaling
and authentication data.
By limiting the need for external con-
ference bridges/media server capacity
or use of conference services for rou-
tine multiparty calls, the snom 320’s
built-in three-party conference bridge
helps limit total cost of ownership,
while also ensuring high audio quality
and low latency.

www.snom.com

Charlottenstraße 68-71
10117 Berlin
Germany
tel/enum: [phone]
fax: [phone]
sip: [email protected]
mail: [email protected]


•  approx. 25x20x 12 cm
•  approx. 920 g
•  FCC Class B,
CE Mark
•  2.1– 2.3 watts

•  RJ45 (Ethernet)
•  5 V DC
• 2 x IEEE 802.3
10/100 Mbps switch
• 
IEEE 802.3af, Class 1
•  RJ11 connector
•  RJ11 connector
• 
Proprietary snom connector

• 2x24character,tiltablesemi-
graphical display
• 47keys,12programmable
function keys with LEDs
(54 with the expansion module)
• Caller-ID
• MessagewaitingindicationLED
• Addressbook(100entries)
• Addressbookimport/export
• Speeddialing
• Localdialplan
• Numberguessing
• Listsofmissed,receivedanddialed
calls (100 entries each)
• Callwaitingindication
• Clock,daylightsaving,call-timer
• Callblocking(denylist)
• Blockingofanonymouscalls
• Handlingofupto12calls
simultaneously
• Menu-drivenuserinterface
• Ringtoneselection,importof
individual ring tones
• URLDialingsupport
• Nationallanguagesupportfor
selected languages (NLS)
• Donotdisturb
• Speakerphone(fullduplex)
• Autoanswermode
• Keyboardlock

• Hold
• Blindtransfer,attendedtransfer
• Music-on-holdsupport
(only via PBX)
• Divert
• Conferencing(3-wayconference
bridge on phone)
• Callpark,callpickup(onlyviaPBX)
• Callcompletion
• ClientMatterCode(CMC)
• Callwaiting/switchingbetweencalls
• Redialing
• RTPmulticastpaging
• Multipleaudiodevicesupport

• EmbeddedwebserverHTTP/HTTPS
• Easyconfigurationofthephone,
remote configuration
• Dialfromwebinterface
• Passwordprotection
• Diagnostics(tracing,logging,syslog)


• HTTPS(server/client)
• TransportLayerSecurity(TLS)
• SRTP(RFC3711),SIPS
• RTCP
• VLAN(802.1pq)

• G.711A-law,μ-law
• G.729A,G.723.1,G.726
• GSM6.10(fullrate)
• G.722
• Comfortnoise,
voice activity detection

• RFC3261compliance
• UDP,TCPandTLS
• Digest/basicauthentication
• Looseroutingandstrictrouting
support
• PRACK(RFC3262)
• Error-informationsupport
• Reliabilityofprovisionalresponses
(RFC3262)
• Earlymediasupport
• DNSSRV(RFC3263),
redundant server support
• Offer/answer(RFC3264)
• MessageWaitingIndication
(RFC3842), subscription for
MWIevents(RFC3265)
• Dialog-statemonitoring(RFC4235)
• In-bandDTMF/out-of-bandDTMF/
SIPINFODTMF
• STUNclient(NATtraversal)
• ENUM(RFC3261),NAPTR
(RFC2915), rport (RFC3581),
REFER (RFC3515)
• Eventlistsubscriptionsupport
(RFC4662)
• Bridgedlineappearance(BLA)
• AutoprovisioningwithPnP
• Busylampfieldsupport(BLF)

• Automaticsoftwareupdate
• Automaticsettingsretrieval
via HTTP/HTTPS/TFTP
• Installationviawebinterface
• StaticIPprovisioning,DHCP
• NTP

Version 1.2 / 15 Feb 2008
Copyright © 2000–2008 snom technology AG. All rights reser-
ved. snom is a registered trademark of snom technology AG and
afliatesinGermany,USAandcertainothercountriesandregi-
ons.Unlessspeciedotherwise,
all trademarks, in particular product names, in this document are
legally protected trademarks of snom technology AG.
Othertrademarksorregisteredtrademarksmentionedinthis
document are the property of their respective manufacturers or
owners.Productspecicationscontainedinthisdocumentare
subject to change without notice.