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Gigaset C620 / C620A

Gigaset C620 / C620A
alaScore 93

598 reviews

Oct, 2015

alaTest has collected and analyzed 598 reviews of Gigaset C620 / C620A. The average rating for this product is 4.2/5, compared to an average rating of 4.0/5 for other Cordless Phones for all reviews. People really like the reliability and design. The price and size are also mentioned favorably.

usability, size, price, design, reliability

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the Gigaset C620 / C620A is awarded an overall alaScore™ of 93/100 = Excellent quality.

Review analysis

(Based on 598 reviews)

Expert Reviews  

User Reviews  

Showing 283 review(s)

Expert Reviews User Reviews
Showing 1 - 267 of 283 Show Reviews: in English | in other languages (315)

Consumer review by: ( review summary for Gigaset C620 / C620A


alaTest has collected and analyzed 257 user reviews of Gigaset C620 / C620A from The average user rating for this product is 4.3/5, compared to an average user rating of 4.1/5 for other Cordless Phones on Reviews about the reliability and design are generally positive. The size and price are also mentioned favorably.

usability, price, size, design, reliability

92% of the reviews on give this product a positive rating.

This summary is based on the products: Gigaset C620A Cordless Phone with Answer Machine and Nuisance Call Blocking (Pack of 3)Gigaset C620A Cordless Phone with Answer Machine and Nuisance Call Blocking (Pack of 2)Gigaset C620A Cordless Phone with Answer Machine and Nuisance Call Blocking

Oct, 2015

Expert review by: mfereday (

Call Blocking Phone : Gigaset C620A Duo


Whether you refer to them as Cold Calls or, probably more appropriately, Nuisance Calls, they are unwanted interruptions to your daily living routine. While some of these calls are merely annoying, to say the least, others are more criminal orientated...

Recently I took a look at BT’s solution for dealing with these Cold Calls and now it is the turn of Gigaset, a German manufacturer of telephones, tablets and baby monitors, with the company’s C620A Duo product. As the “Duo” part of the product’s title...

Jul, 2015

Consumer review by: cthiicph (

Mr A

GOODThe sound quality is not as good as WHICH says.but the range is far better than our last BT phone. Tested it in the garden with a problem!!

Aug, 2015

Consumer review by: Bannerman (

Good, but!

I've had the trio set since July 2014. In general they have performed very well but, I've now got a problem where the phones will intermittently cut out during a conversation. It happens on all the phones; the screens also go blank and will only come...

May, 2015

Consumer review by: 2011-05-27 17:54:46.27 (

A bit of a disappointment

The Which? Full Specification is incorrect as the recording time on the answerphone is only 15mins, NOT the 55 stated - a huge difference! My main issue with this item is that although it does block anonymous calls & withheld numbers, it cannot...

Mar, 2015

Consumer review by: 2011-06-20 22:01:52.603 (

Sound quality not as as clear as the Which report says

A phone with good features let down by the sound quality, that isn't to the standard suggested in the Which review. Perhaps we have a rogue example. After a couple of weeks use we're returning to John Lewis for a replacement

Mar, 2015

Consumer review by: ChrisB (

A bit disappointing

Having upgraded from a Panasonic quad cordless phone system to the Gigaset 620A quad system I am somewhat disappointed with it.It feels more flimsy that the Panasonic & the navigation button is fiddly. My main gripe is that with the Panasonic if...

Mar, 2015

Consumer review by: 2011-05-27 17:54:46.27 (

Issue with blocking calls

Bought this recently as sick to the teeth of nuisance calls & gradually getting used to it. I don't think the sound is that great compared with my 7 yr old previous BT model. The major problem I have discovered is that the blocking of...

Jan, 2015

Consumer review by: editor (

Which? response re 'Recording Time'

Thanks for your comments. Gigaset and our lab have confirmed that this phone will record 55 minutes of messages. One reason why you may only be getting 15 minutes of recording time is that the recording quality could be set to the highest level...

Jul, 2014

Consumer review by: 2010-12-05 18:57:37.49 (

Recoding Time 15mins not 55mins

Purchased this model based upon the Which? review.However, the advertised recording time according to the automated voice control is only 15 mins, not 55mins as stated in the marketing material.Surely this is something that should have been picked up...

Jul, 2014

Consumer review by: davlegen (


Excellent phones (actually made by Siemens).Can be hard to set up for some.(The helpline can be a disaster to use as I have found)Well worth the money. We have TalkTalk,and have had to reduce the ring delay to 6 rings,otherwise,TalkTalk answerphone...

Jun, 2014

Product Specifications


Built-in Camera: No
Cordless Phone Standard:DECT
Hands Free Functionality: Yes
Loudspeakers: Yes
Low Radiation: Yes
MMS Functionality: No
Polyphonic Ringtones: Yes
SIM Reader: No
SMS Function: Yes
Video Phone: No


Bluetooth: No
Ethernet: No
ISDN Port: No


Backlight Illumination:Display Backlight
Number of Display Colours:65.536

General Features

Recording System:Digital Announcement and Recording / Not Applicable
System Phone: No
Type:Cordless Phone / Cordless Phone with Answering Machine

IP Telephony

H.323 VoIP-Protocol: No
IP Phone: No
SIP-Standard (Session Initiation Protocol): No


Display of Calling Number: Yes