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Siemens Gigaset

Siemens Gigaset C620A Twin Cordless Phone

this product has 26reviews 13questions


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Customer rating: 4.4 out of 5 | read 26 reviews or add a review

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Anonymous call protection Address book for up to 250 contacts Brilliant HSP™ sound quality Up to 55 minutes of recording time on the digital answer machine

The Siemens Gigaset C620A Twin: Offering sophisticated style and feature rich family-friendly functionality

Gigaset C620A Reddot Design AwardGigaset’s commitment to manufacturing the best cordless phones when it comes to sound quality is perfectly demonstrated with their new (Reddot Design Award winning) C620A. Featuring their innovative HSP technology, which enhances the clarity of calls above that of normal analogue landline phone; Gigaset delivers crystal clear conversations (even during hands-free) in this stylish duo set of cordless phones, that further benefit from a range of user-friendly and intuitive features capable of catering to the day-to-day needs of any home.

Advanced features

Each handset benefits from an intuitive call-blocking key, which enables you to block and store up to 15 unwanted numbers in the ‘blacklist to prevent future disturbances. The C620A also has the facility for time-controlled call silencing, which will prevent the handsets from ringing Siemens Gigaset C620Aat inconvenient times you set. And for the family there is also a dedicated baby monitor key, which offers a convenient way to keep in touch with your children. You can set the sensitivity level and program either an external or internal call alert when the noise reaches this level. And the talkback function allows you to soothe your baby with the sound of your voice; or talk with your children from another room or a remote location.

Manage missed calls and messages

Missed calls trigger an illuminated message waiting indicator on the screen, which allows you to easily access the details and return the call. Playback of messages on the in-built answer machine can be initiated using the control keys on the base (which features a convenient LED message counter so you can easily see how many messages have been left) or from the cordless handsets. You can also access messages remotely and set up the C620A to notify you by text whenever you have a new missed call or message waiting.

Gigaset HSP

Superior sound and build quality

As with all Gigaset phones, the C620A has been manufactured to their exacting high-standard for dependable performance capable of delivering an extraordinary battery life (26 hours talk-time, 530 hours on standby) and dependable range. And each handset benefits from integrated HSP technology, which enhances the clarity of calls above that of a normal landline phone.

For analogue line (BT, Virgin, TalkTalk, etc.)
No of handsets 2
System can be expanded to 6 handsets in total
Answering machine Yes | Up to 55 minutes
Phonebook Up to 250 entries
Keypad/touchsceen Yes | No
Caller ID (Display):
Wall mountable base | additional handsets No | Yes
Range indoors | outdoors in metres 50 | 300
Talk time | standby in hours 26 | 530
Warranty 2 years
Advanced Features
Anonymous call blocking/silencing Call blocking
Repeater compatible


Headset compatible

via GAP

via 2.5mm Headset Socket

Screen size | Backlit 1.8" | Yes
Colour Yes
Backlit/ Illuminated Keypad
Date & time
Screensavers pre-installed | downloadable Yes | No
Out of range indicator | alert Yes | Yes
Low battery indicator | alert Yes | Yes
Space per entry 3 numbers
VIP contacts
Automatic contact sharing between handsets
Phonebook transfer
Room/baby monitoring
Night Mode
Base Answering Machine
Record time 55
Remote access from outside line
Playback: handset| base Yes | Yes
Message counter indicator
Pre-recorded/ personalised outgoing message Yes | Yes
PIN protected
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
Earpiece volume control 5 levels
Handsfree volume control
Call Duration displayed
List of last...missed calls with time/date 20
List of last...dialled numbers with time/date 20
Two-way recording
Ringtones: melodies| polyphonic | real | downloadable 20 | 19 | - | -
Technical information
Talk time 20 hours +
Standby time 200 hours +
Handset dimensions (mm) 155 x 49 x 30
Base dimensions (mm) 132 x 126 x 52.5
Charger dimensions (mm) 82.5 x 73 x 39
PSU length -
Line cord length -
Battery type NiMH
Battery size AAA
Battery capacity 1300 mAh
Transmission technology DECT & GAP
Frequency band 1.88 to 1.90 GHz
Languages Yes (32)
Why not save up and get great accessories? Select from additional handsets, wireless headphones, or go for extra long range with a DECT repeater

Additional Handsets

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add Plantronics C565  to packagePlantronics C565
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Your Package Tailor your package to suit your requirements and watch the savings pile up

Main Product
Siemens Gigaset C620A Twin Cordless Phone Siemens Gigaset C620A Twin Cordless Phone

Top 7 Product Questions for Siemens Gigaset C620A Twin Cordless Phone

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of customers would recommend this product
Average Customer Review
more score details
Customers most agreed on the following
Good points
  • clear voice (7)
  • Easy to read screen (6)
  • Looks good/design (6)
  • Sound quality (6)
  • Value for money (6)
Bad points
  • None (5)
  • None (5)
  • screen text could be bigger (1)
  • Text on screen is a little small (1)
  • Design (1)

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The most helpful favorable review 15 of 16 people found the following review helpful

product reviewsproduct reviewsproduct reviewsproduct reviewsproduct reviews 4.9/5 Highly Recommended Phones "Great telephones, the sound quality is very clear and it has a great range for my property which I have struggled with in the past. Easy to use, Looks good/design, Sound quality, Value for money, Easy to set up None" Read the full review › May 30, 2014 by Trevor

The most helpful critical review

product reviewsproduct reviewsproduct reviewsproduct reviewsproduct reviews 4.8/5 Very pleased "Have just received my C620A and cannot fault it. The caller identification feature had to be activated by Virgin Media but this was soon resolved. Would definitely recommend this phone to anyone." Read the full review › Jul 27, 2015 by Anonymous

read 1 review
Product Manuals Siemens Gigaset C620A Twin Cordless Phone
Gigaset C620A - User Guide.pdf

Siemens Gigaset C620A Twin Cordless Phone
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