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Siemens Gigaset DX800A Quint With SL78H VOIP Bluetooth DECT Phone

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Availability: Express Delivery
Discount: 22%
You Save: £175.00

RRP Price: Our Price: [ex vat]:
Product Code:
£799.99 £520.83
Customer rating: 4/5 out of 1 reviews.

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Product Description

The high-end hybrid desktop phone for VoIP and ISDN or fixed line calling.


The Gigaset DX800A all in one is the professional multiline desktop phone for small offices and home offices. From its comfortably modern design to its large 3.5 TFT colour display, this corded phone has executive chic and the business-like functionality to match. Being a hybrid phone means the Gigaset DX800A all in one is truly flexible and can be configured to either IP with ISDN, or IP with fixed line. Because it’s a multiline phone it can support up to 4 parallel calls and expand with multiple handsets – up to 6 in total. Managing contacts is easy with up to 1.000 vCard entries. You can synchronise with your PC to access Outlook contacts and locate details easily with auto look-up4. The Gigaset DX800A all in one has best-in-class hands-free for wired or wireless hands-free talking. And what’s more, every single conversation is heard in exceptional High Definition sound quality. With its range of energy-saving features and radiation-free mode, this telephone is better for the environment. And thanks to three integrated answering machines with a combined recording time of up to 55 minutes, the Gigaset DX800A all in one is equipped to support small businesses.

With its executive features, VoIP with ISDN or fixed line and large colour display, the Gigaset DX800A all in one is ideal for small offices and home offices. This multiline desktop phone is capable of meeting the daily demands of up to four professionals.
The future is calling
Because the Gigaset DX800A all in one is a hybrid desktop phone, it is a completely flexible Next Generation-ready solution and a real investment for the future. When you configure this telephone you choose between VoIP and regular fixed line or VoIP and ISDN, based on the needs of your small office or home office. And as the needs of the future change, the Gigaset DX800A all-in-one can be reconfigured as required. Being a multiline telephone means it supports up to 4 calls in parallel; ideal for busy environments and if you ever need to expand your horizons with multiple handsets the Gigaset DX800A all-in-one supports up to 6.

Professional SOHO solution

The Gigaset DX800A all in one manages your contacts professionally. As well as providing an address book for up to 1.000 vCards, this valuable multiline desktop phone links to your Outlook contacts.DX800A_interfaceWhen someone in your small office or home office needs to locate the details of other businesses, the Gigaset DX800A all in one saves time with access to an online net directory and Yellow Pages search. With auto look-up4 it’s even easier to find the details needed. The online benefits of this hybrid desktop phone do not end there; get useful Gigaset info services direct to your large colour display – RSS news feeds, a weather forecast and more. Also receive email notification, showing details of the sender, subject, time and date. And with Link2Mobile Bluetooth technology you can make and receive mobile calls from the comfort of the Gigaset DX800A all in one, whenever it suits you.

Get the message

The three separate answering machines of the Gigaset DX800A all in one, with a combined recording time of up to 55 minutes, mean your associates will never be cut short, even when leaving detailed messages. This dependable multiline desktop phone does all it can to let you know when new messages are waiting, from notification on the large TFT colour display to sending an SMS. And for the convenience of everyone that uses your small office or home office, the answering machines of the Gigaset DX800A all in one can even record calls
Environmental efficiency

The Gigaset DX800A all in one has an energy-saving power supply, meaning it consumes less electricity saving you money and helping the environment. For further energy savings, a time controlled night mode switches off the display when not in use. When no cordless handsets are registered to the base station the DECT power is switched off completely. When handsets are registered, the transmitting power to the base station is variably reduced depending on their distance apart. You can also reduce the transmitting power by 80% by selecting the ECO Mode. Furthermore, radiation-free ECO Mode Plus turns off the transmitting power when the handset is in standby. Rely on the Gigaset DX800A all in one for professional energy-efficiency.


Siemens Gigaset SL78h Additional Handset
Siemens Gigaset SL78h Additional Handset meets the highest standards regarding design, technology and environmental friendliness. A unique design concept using solid metal underscores the high quality of the handset and charging cradle. Special emphasis was placed on ease of use: Users can move through the newly designed menu system with its intuitive icons using a central 5-way navigation key (four direction keys plus a middle key) on the handset. Metal dome key technology with its clear pressure point gives a completely new feel. Ideal legibility is ensured by the large TFT QVGA color display with 256,000 colors (240 x 320 pixels). In addition, both phones offer excellent sound quality even when used in full-duplex handsfree mode. If desired, users can also mute the phones and define VIP users. When the latter call, an acoustic signal is emitted despite the fact that the phone is muted.
With its smart design, HD sound and flexible configuration – VoIP with ISDN or fixed line – the Gigaset DX800A all in one is a real investment for the future and the savvy choice for your professional small office or home office.

Key Features:

Display and Keypad

  • Clearly structured menu
  • Graphical Display
  • Main Display Type : Full Colour
  • Answering machine keys
  • Brilliant 3.5inch TFT 320x240 color display
  • Easy softkeys handling
  • Easy-to-use text-based menu
  • Navigation key
  • Message indicator key | Mute key
  • Configurable function keys
  • Display of caller’s number (CLIP) | picture (Picture CLIP)
  • HDSP internal | external
  • Speakerphone - Advanced handsfree
  • Ringer melodies | polyphonic | real sounds | downloadable
  • Individual ringer melodies for VIP entries
  • Volume Control : Volume control up / down
  • Antenna: Integrated on base
  • GAP Compatible
  • Pulse dialing

Call Management

  • Caller ID on call waiting
  • Conference Call
  • Microphone mute
  • Intercom
  • Two-way recording
  • Call Diversion
  • Call Duration
  • Call History
  • Call Transfer
  • Music on hold
  • CTI for direct dialing from Outlook contacts directly via PC
  • Phonebook transfer: via DECT | via Bluetooth | via LAN
  • Address data synchronized with Microsoft Outlook
  • vCards 500 entries
  • Phonebook : 1000 names and numbers
  • Up to 250 vCards with picture
  • Last dialed 20 numbers
  • Number of parallel calls: analogue | ISDN | VoIP -  1 | 2 | 4
Handset Features
  • Bluetooth Functionality
  • Plug-and-play via installation wizards
  • Date reminder function | alarm call
  • Calendar
  • Multi handset capability : Up to 6 handsets
  • Three different phone numbers for each contact
  • Name and caller ID
  • Live recording of calls
  • Multilingual menu for up to 20 languages
  • Time, Date and Call duration displayed
  • WEB-Interface | save and load of configuration settings from/to PC
  • Equipped with speech transmission encryption

Messaging functions

  • Up to 640 characters SMS
  • E-mail
  • E-mail notification

Answering Machine Features

  • Number of answering machines - 3
  • Open listening at base station
  • Recording time up to 55 min.
  • Plug & Play answering machine
  • Playback of messages from external phone
  • Predefined | individual announcements
  • PIN-protected Mailbox
  • Date and time announcement
  • Timed change between predefined and individual announcements
  • AM control via handset | via base station
  • Protection of recordings against power failure

Features with more than one handset

  • Expandable to up to 6 handsets
  • Selective internal calls
  • Internal transfer of external calls
  • Parallel calls internal - 2 | external - 4

VoIP Features

  • Six VoIP accounts
  • Multiple provider configuration

IP net features and services

  • Online Phonebook
  • VoIP profiles for download
  • VoIP protocol SIP
  • Codecs G.711, G.722 | G.726 | G.729
  • QoS: ToS. Diffserv
  • Firmware update via Internet

Handset Dimensions & Other Facts:

  • Up to 80% less energy consumption
  • Automatic reduction of the emitted power
  • Standards DECT | GAP | ISDN | Bluetooth | CatIQ certificated
  • Headset connection: corded 2,5 mm | DECT | Bluetooth
  • Fax connection port
  • LAN switch:100 Mbit
  • Linux based operating system
  • Link2mobile |Two parallel Bluetooth connections
  • Radiation-free ECO Mode Plus
  • PBX compatible
  • Dimension:(W x H x D): 108 x 263 x 168 mm
  • Weight: 998 grams
  • Two year warranty

Discount: 22%
You Save: £175.00

Product Guide

Download the Siemens Gigaset DX800A Quint with SL78H VOIP Bluetooth DECT Phone User Guide. (1.34 MB)

1 Siemens Gigaset DX800A Quint with SL78H VOIP Bluetooth DECT Phone review

Average Customer Review: 4.5/5
Handset features
Value for money
Sound quality
Ease of set up/use
Battery life


6 of 6 people found the following review helpful
06 Sep 2012
ticks all the boxes spikeee 4.5/5 roll over for details

Good points all in one unit, 1 pstn/isdn line with 2 voip lines. 3 answering machines and distinctive ring for each line. Great for us as we run two business from home !

Bad points answering machine prompts were in german until I found some instructions on a amazon review that showed how to fix it.

Other thoughts

would recommend to any one who needs 3 numbers .
We used sipgate to provide the extra numbers

27th Jan 2012

My DX800A was all correctly set up for the UK, apart from the Quick Sync software where you need to change the country code setting.
14th Jun 2012

Likewise. However, the manual that came with the unit was different from the PDF download from the Gigaset website in that it made no reference to call swpping or conference calling. In any event i did get conferencing to work but not as it said in the manUAL! Otherwise great phone, great sound quality, with added bonus of being able to make and receive mobile calls thorugh the base unit!
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