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Siemens Gigaset

Siemens Gigaset SL450A GO Quad Long Range Cordless Phones

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Customer rating: 4.4 out of 5 | read 3 reviews or add a review

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Made with the finest materials: handset with aluminium frame German build quality Gigaset GO to connect with your SmartphoneIncludes long range DECT repeater

The Siemens Gigaset SL450A Quad Long Range Cordless Phone

The Gigaset SL450A GO Quad Long Range is a luxury set of cordless phones for the home that comes with an RTX repeater for up to double the standard range. With HD sound quality and extra signal you’ll be able to enjoy calls in exceptional clarity throughout your home. The SL450A GO has been made from the finest materials boasting an aluminium frame, beautifully large 1.8” full-colour display, and the latest call management features.

HDSP for High Definition Sound

Equipped with Gigaset’s sophisticated HDSP the SL450A GO is capable of delivering outstanding call clarity on both landline and VoIP free from any distortion, background noise, or echoes. The handset also boasts a full-duplex loudspeaker so that you can enjoy calls hands-free. Alternatively you can connect a headset via Bluetooth or 2.5mm jack.


Gigaset GO

Gigaset GOThe Gigaset SL450A GO is packed with the latest features including Nuisance Call Blocking so you can put an end to cold calls. And with Gigaset’s intuitive Contacts Push app for Android and iOS you can send contacts to your home phone easily from your Smartphone. All the standard features are included also: answering machine (with up to 55 minutes), phonebook (for up to 500 contacts), call lists, caller ID, and more.

Multi-handset features

With more than one handset you can take advantage of the Gigaset SL450A GO’s additional features such as: intercom (to place internal calls between handsets), call transfer, conference calls (between one external line and multiple handsets), and phonebook transfer.

Includes RTX repeater for long range

You can up to double the range of your home phone when using the RTX repeater, and eliminate the risk of dropping calls. The repeater doesn’t need to be connected to your telephone line and can be set-up in a couple of minutes with a few simple steps.

Additional benefits

The phonebook comes with a capacity for 500 entries (with the option of 3 numbers, email & picture per contact) and there is an integrated digital answering machine with a recording time of up to 55 minutes. Calls can be enjoyed hands-free by pairing a Bluetooth headset or using the handsets full-duplex loudspeaker. Gigaset phones offer reliable cordless range and the SL450A is repeater compatible.

Why should you buy this long range cordless phone?

Offering top-class performance and extra-long range the Gigaset SL450A GO Quad with RTX repeater is the ultimate home phone package that comes with everything you need.

For analogue line (BT, Virgin, TalkTalk, etc.)
For VoIP line
No of handsets 4
System can be expanded to 6 handsets in total
Answering machine Yes
Phonebook up to 500 entries
Caller ID (Display):
Wall mountable base | additional handsets Yes | Yes
Range indoors | outdoors in metres up to 100 m | up to 300 m
Talk time | standby in hours up to 12 h | up to 300 h
Warranty 2 years
Advanced Features
Incoming call vibrate
Anonymous call blocking/silencing Yes | Nuisance Call Blocker
Repeater compatible


Headset compatible

Bluetooth, GAP and 2.5 mm headset

Data synchronisation Yes
Picture caller ID
Display & Keypad TFT | Yes
Screen size | Backlit 2.4 inch | Yes
Colour Yes
Backlit/ Illuminated Keypad
Date & time
Screensavers pre-installed | downloadable Yes
Out of range indicator | alert Yes | Yes
Low battery indicator | alert Yes | Yes
Phonebook features: Address, email, etc.
VIP contacts
Phonebook transfer
Additional features: Nuisance Call Blocker
Room/baby monitoring
HDSP Audio
Visual message / call indicator
Base Answering Machine
Record time 55
Remote access from outside line
SMS/email notification of new messages
Playback: handset| base Yes | No
Pre-recorded/ personalised outgoing message Yes | Yes
Protection of recording against power failure
Handset locator
Call management & sound
Call blocking
Call transfer between handsets
Call waiting
Conference call
Internal calls (intercom)
Hold | with music Yes | Yes
Last number redial
One-touch loudspeaker
Handsfree volume control
Call Duration displayed
List of last...missed calls with time/date 20
List of last...dialled numbers with time/date 20
Ringtones: melodies| polyphonic | real | downloadable 22
Technical information
Talk time 12 hours
Standby time 200 hours +
Handset dimensions (mm) H130 x W51 x D19
Base dimensions (mm) H132 x W105 x D46
Charger dimensions (mm) H70 x W59 x D29
Battery type Li-Ion
Transmission technology DECT & GAP
Languages 27
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Average Customer Review
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Customers most agreed on the following
Good points
  • Looks good/design (3)
  • Sound quality (3)
  • Easy to set up (1)
  • Easy to use (1)
Bad points
  • None (2)

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Product Manuals Siemens Gigaset SL450A GO Quad Long Range Cordless Phones

Siemens Gigaset SL450A GO Quad Long Range Cordless Phones
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