Siemens Gigaset DE900 IP PRO Datasheet (PDF)

The premium IP phone designed 

for ultimate business flexibility. 

DE900 IP PRO 

The DE900 IP PRO is the premium IP phone for flexible 

communication in small to medium businesses. Clean 

and contemporary in design and with an award-winning 

user interface, the DE900 IP PRO offers ultimate 

connectivity, customization and portability options – in 

addition to state of the art executive features, unique 

innovations and world-class German technology. 

ADDRESS 

BOOK 500 

ENTRIES 

14 MEMORY 

KEYS 

HIGH 

DEFINITION 

SOUND 

LIST WITH 

UP TO 100 

MISSED CALLS 

5-WAY CALLS 

Feature highlights: 

• 3.5” colour TFT display with award-winning user interface 

High-end metallic finish 

Touch wheel for fast directory scrolling 

Up to 12 SIP accounts 

Exceptional HD sound with HDSP1 

Integrated WiFi client IEEE802.11n 

USB 2.0 port 

• Gigaset MobileOFFICE: portable custom phone 

settings via USB 

MP3 ringtones 

Headset connection: Bluetooth®, DECT and corded 

Link2mobile: connection to mobile via Bluetooth® 

Gigabit Ethernet (10/100/1000) with 2-port switch 

Integrated Power over Ethernet 

XML browser 2 and Info Center: weather, RSS and more 

Classic PBX calling features 3 

Direct dialling of Microsoft Outlook contacts via PC 4 

Local network directories and public online directory 1 

SRTP/TLS encryption 

Professional zero-touch auto-provisioning setup 3 

Certified hearing aid compatible 

• 5 

Energy-saving ECO features 

Professional HD sound. 

Exceptional HDSP1 sound on the DE900 IP PRO adds 

busi ness efficiency: superb and clear wideband audio 

technology makes calls sound like face-to-face meetings. 

Effortless operation and navigation. 

The DE900 IP PRO’s intuitive, award-winning user interface 

grants access to premium features and services. 

Quick and ergonomic, the touch wheel accelerates 

directory navigation. 

Wireless connectivity. 

DECT and Bluetooth® interfaces make it easy to register 

a handset or headset. Link2mobile enables incoming 

and outgoing calls from registered GSM phones. Also 

connect the DE900 IP PRO to any WiFi network. 

Straightforward setup and auto-provisioning. 

Step by step wizards handle the DE900 IP PRO’s complete 

installation and configuration. Zero-touch autoprovisioning 

options from Gigaset partners grant 

hassle-free remote configuration and management. 

VoIPon www.voipon.co.uk sales@voipon.co.uk Tel: +44 (0)1245 808195 Fax: +44 (0)1245 808299


The full-featured IP phone for SMB flexibility. 

Technical data 

Audio 

• Headset connection via Bluetooth®, DECT or 

standard RJ-9 jack 

• Wideband HD sound according to TIA/EIA-920 

HDSP1, G.722 

• Full-duplex speakerphone in brilliant sound quality: 

extra large sound reflex box in desktop base 

• Adjustable volume: speakerphone, corded handset, 

headsets and 10-level ringer 

• Hearing aid compatible (HAC) according to FCC 5 

• MP3 ringtones 

Display and user interface 

• Illuminated 3.5” (8.9 cm) TFT colour display, 

320 x 240 pixels 

• Award-winning (iF communication award) 

icon-based user interface 

• Seven step dimmable display backlighting 

• Night mode: time-controlled, energy-saving 

display switch-off 

• Customizable screensaver: pictures, logos, slide 

shows, analogue/digital clocks and more 

• Multi-language support 

Phonebook and dialling 

• Address book with 500 picture vCard entries on 

internal memory – more via USB 

• vCard entries: first and last name, company, job title, 

8 phone numbers, photo, email, website, address, 

birthday, note, time zone 

Address book edit on call manager 

Quick search: characters or full text 

• Scrollable photo vCards 

• Voice recording key: MP3 (internal memory), USB or 

external server 

• Address book synchronization with desktop phone 4 

• Local net directories and public online directories 1 

access 

• Online public directory and Yellow Pages search; 

reverse search, auto-lookup 

• 1 

Network-based private phonebook 

LDAP support (network-based corporate phonebook) 

Online auto-lookup 

Picture caller ID 1 with caller location and time zone 

• Pre-dialling with editing 

• Link2mobile: incoming and outgoing calls via 

GSM phone 

• Direct dialling of Outlook contacts 4 

• List of up to 100 missed calls with caller ID 1 and call time 

Connectivity 

A comprehensive range of connection 

options enables ultimate 

flexibility and portability 

of business communication. 

INTERNET ACCESS 

GATEWAY 

GIGASET PBX 

T500 PRO 

DECT HANDSET 

5-way conferencing 

12 lines in parallel with separate caller ID 1 information 

Up to 12 web-based voicemail accounts 

Display of call duration, name and number 

Automatic redial, call log redial and redial when busy 

• Call waiting, forward and transfer 

Keypad 

5-way touch wheel for easy navigation 

White illuminated keypad 

14 programmable keys 

2 soft keys 

• All function keys with LED status signal 

• Quick access keys for: 

• Speakerphone 

• Headset 

• Mute 

• Info Center 

• MWI 

• Voice recording 

• DND 

• Redial 

• Address book 

• Volume control 

• Home button 

• Hold 

• Conference 

• Transfer 

• Additional keypad extension available as Gigaset pro 

system component 

WiFi 

LAN 

DECT HEADSET 

ADD UP TO 

3 EXTENSION 

MODULES 


HEADSET 

LINK2MOBILE 

COMPUTER 

BT HEADSET 



Special features 

WiFi 802.11b/g/n client 

Expandable memory via USB 2.0 

Gigaset MobileOFFICE: portable user settings via USB 

• Link2mobile: incoming and outgoing calls via GSM 

phone 

• Info Center with online content: weather, news, 

internet radio and more 

Email notification 

XML browser 2 for online content 

Calendar 

Installation and configuration wizards 

• VoIP setup wizard: downloadable VoIP profiles 

Hardware 

Large flash memory: 128 MB 

Future-proof software and operating system 

Updatable firmware 

Dimensions: 318 mm (L) x 202 mm (D) x 110 mm (H) 

Weight (without power supply): 1100 g 

Power Supply: 100-240 V, 50/60 Hz 

Voltage: 12 V, DC 

Wearless optical hook switch 

Handset cord with comfort length 

• Colour: quartz black & silky metal 

• Compatible with Mac OS® 10.4 or higher and 

Microsoft Windows® platforms 

• Two-year warranty 

PBX compatibility 

Gigaset 

Asterisk 

Starface 

Cisco 

Broadsoft 

Netcentrex 

Sylantro 

HiPath 

ShoreTel 

Avaya 

Intraswitch 

• And others 

ECO 

• Energy-saving power supply 

• DECT ECO Mode Plus 

Technical specifications 

VoIP protocol: SIP (RFC3261, RFC2543) 

Codecs G.711 u/a, G.722, G.729AB, iLBC 

Security: SRTP (RFC3711), TLS (RFC2246), SIPS 

Remote configuration: TFTP, HTTP, HTTPS 

PoE: IEEE 802.3af, class 3 

2-port LAN switch: 10 Mbit, 100 Mbit, 1Gbit 

Internet protocol: IPv4 (RFC0791), IPv6 (RFC2460) 

12 VoIP accounts 

Simultaneous connection of up to 4 IP lines 

Auto-provisioning (MAC-based) 

XML browser 2 

POP3 (RFC1939), POP3S (RFC2595) 

USB 2.0 port, type A, high/full/low host interface 

QoS: RSVP/DiffServ (RFC2474, RFC2475) 

RTCP 

WLAN standards: IEEE 802.11b/g/n 

Bluetooth®: Class 2, IEEE 802.15.1, HFP, HSP 

DECT: GAP, CAT-iq1.0, EcoMode+ 

DHCP (RFC2131) 

STUN (RFC3489) 

ICE 

VAD (Voice Activity Detection) 

CNG (Comfort Noise Generation) 

DNS SRV (RFC2782) 

DTMF (in-band), RTP payload (RFC4733), SIP-INFO 

Syslog 

PCAP tracing 

• VLAN tagging 



Classic PBX features 3 

BLF (busy lamp fields) 

Network AM 

Conference calls 

Call transfer: blind, attended, early attended 

Call hold 

Call reject 

Call resume 

Call back 

CLIR 

Call waiting 

Manual call deflection 

Call forwarding: CFU, CFNR, CFB 

Anonymous call blocking 

No MWI if call is completed elsewhere 

MOH (music on hold) 

Call log 

DND 

CCBS 

Park & orbit 

Call swap 

SIP hints 

Send text 

Call back on busy 

Call record 

Call pickup (selected, group) 

Zero-touch auto-provisioning 

Automatic firmware updates 

Net directories 

LDAP 

• Status indication of net services 

Gigaset pro system components 

• IP PBX system: Gigaset T500 PRO, T300 PRO 

• Gigaset DECT handsets 

• Gigaset extension module ZY900 PRO, up to 3 

per phone, 14 programmable keys each 

Accessories 

Corded, DECT, or Bluetooth® headset 

CAT-iq-enabled handsets 

Kensington Lock® 

• USB device for added memory 

www.gigaset.com/pro 

1 Dependent on country/network/provider 

2 Available in spring 2011 

3 When used with a Gigaset PBX system 

4 Compatible with Microsoft Outlook 2000 versions 

and newer (via Gigaset QuickSync Software) 

5 Meets FCC’s official/legal testing requirements

Siemens Gigaset DE900 IP PRO Datasheet (PDF)

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