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Siemens C300

alaTest has collected and analyzed 2240 reviews of Siemens C300. The average rating for this product is 4.1/5, compared to an average rating of 4.0/5 for other Cordless Phones for all reviews. Reviewers really like the reliability and design. The price and size also get good feedback.

usability, size, price, design, reliability

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the Siemens C300 is awarded an overall alaScore™ of 85/100 = Very good quality.

Review analysis

(Based on 2240 reviews)

Expert Reviews  

User Reviews  

Showing 578 review(s)

Expert Reviews User Reviews


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Showing 1 - 484 of 578 Show Reviews: in English | in other languages (1661)

Consumer review ( review summary for Siemens C300


alaTest has collected and analyzed 463 user reviews of Siemens C300 from The average user rating for this product is 4.2/5, compared to an average user rating of 4.1/5 for other Cordless Phones on Reviewers really like the reliability and size. The design and price also get good feedback.

usability, price, design, size, reliability

89% of the reviews on give this product a positive rating.

This summary is based on the products: Gigaset C300A Single DECT Cordless Phone with Answer MachineGigaset C300A Single DECT Cordless Phone with Answer Machine

Jul, 2018

Consumer review ( review summary for Siemens C300


alaTest has collected and analyzed 11 user reviews of Siemens C300 from The average user rating for this product is 4.0/5, compared to an average user rating of 3.9/5 for other Cordless Phones on Reviewers are impressed by the reliability and size. The price and usability also get good views.

usability, price, size, reliability

91% of the reviews on give this product a positive rating.

This summary is based on the products: Gigaset C300A-2 Dect_6.0 2-Handset Landline TelephoneGigaset C300A-2 Dect_6.0 2-Handset Landline Telephone

Jul, 2018

Expert review by (

Gigaset C300A twin review

  (Rating Hidden)

Sporting simple, minimal functional design, the Siemens Gigaset C300A twin is a mid-range digital cordless phone. It also boasts a host of handy features including a colour display, hands-free speakerphone, large phonebook, and energy-saving mode. We...

Nov, 2010

Consumer review (


  (Rating Hidden)

Refreshingly easy to set up and use. Paper instructions provided on purchase, so did not have to log in to NASSA to get going. Clear and intuitive operating procedure and the sound quality is excellent. It probably does lots of functions that I will...

Jul, 2014

Consumer review (

Gigaset C300A triple

  (Rating Hidden)

We have had cordless phones since they were first invented, replacing them every few years in the hope of getting improved versions. In order to have one phone in the house that would work during power cuts, occasions when phones are particularly...

Mar, 2014

Consumer review (


  (Rating Hidden)

I bought the CS310A a month ago for £43.33 (incl delivery) from LiGo and am disappointed with the lack of value for money. The facility to remotely turn on the answer machine does not work and I am experiencing the worst battery life of any cordless...

Feb, 2014

Consumer review (


  (Rating Hidden)

Compared with something like an iPhone, this is frustrating and confusing. I would not buy this again.

Feb, 2014

Consumer review (

Through a sock

  (Rating Hidden)

I've had the Gigaset 300A for three weeks now. I've made calls. People have called me. Everyone sounds like they're talking through a sock. Muffled and indistinct. Better clarity on my mobile. I'm quite disappointed and may have to get rid of it.

Jan, 2014

Consumer review (

For a few pence more

  (Rating Hidden)

The phone works fine. As reviewed. But the really really irritating thing about it is it comes with a disappointingly short power cord and phone line. So unless you have a powerpoint and a phone socket close by each other AND the place you want to keep...

Jan, 2014

Consumer review (

Questionable durability

  (Rating Hidden)

I purchased this quad set in December 2012. The handsets and answering machine worked perfectly - no complaints. Then, out of the blue, the speaker on the answering machine stopped working. all suggested re-sets proved useless. The answering machine...

Aug, 2013

Consumer review (

Siemens Gigaset

  (Rating Hidden)

Still getting to grips with all the menus/submenus. In contrast to above review, have yet to find the options intuitive. Quite a steep learning curve with much leafing backwards and forward through extensive instruction book seeking answers. Good...

Apr, 2013

Consumer review (

Which? response to simon65

  (Rating Hidden)

Dear simon65Thanks for your comments. We test the range of each cordless phone by making a series of calls and measuring the call quality on different floors within our laboratory, through steel and brick walls. We determine the point at which we start...

Apr, 2013

Product Specifications

Call management

Call blocking: Yes
Call hold: Yes
Call log entries:30
Call screening: Yes
Call timer: Yes
Call waiting: Yes
Caller ID:No / Yes
Calling line identification presentation (CLIP): Yes
Conference call: Yes
Direct call:Y
On-hook dialing: Yes
Redialing:No / Yes
Speed dialing: Yes


Certification:CE, TUV
Energy Star certified: No
Specific absorption rate (SAR) value (EU):0.1


Backlight buttons: Yes
Big buttons:No / Yes
Buttons quantity:17
Colour of product:Black / Black, Silver / Silver, White / Titanium / White
Elderly phone: No
Integrated antenna: Yes
Mounting type:Ceiling / Desk / Wall / Wall/Ceiling / Wall/Desk


Backlight colour:Amber
Backlight display: Yes
Brightness adjustment:No / Yes
Built-in Display: Yes
Display:LED / LED, LCD
Display contacts list status: Yes
Display diagonal:4.06 / 4.32
Display number of colours:4 / 4096 colours
Display number of lines:3 / 4 / 6
Display Resolution:128 x 128 / 42 x 25
Touchscreen: No


Battery capacity indicator:No / Yes
Battery charge indicator:Y
Battery charging indication: Yes
Battery full indication: Yes
Battery low indication: Yes
LED indicators: Yes
LED on base:No / Yes
LED on handset:No / Yes

Management features

Add new contacts from handset: Yes
Alarm Clock: Yes
Answerphone remote access: No
Any key answer:No / Yes
Calendar: Yes
Clock with calendar:No / Yes
Edit user status on the phone: Yes
Languages support:Multi
Navigation key: Yes
Voice dialing: No
Volume Control:Digital


Call list capacity phonebook:10 / 250 / 30
Phonebook capacity:100 / 150 / 250
Redial list capacity:10 / 30
SMS storage capacity:100 / 160 / 20
User memory phonebook:Y

Operational conditions

Operating temperature (T-T):5 - 45

Other features

Base station keys:8 / 9 / N / Y
Bluetooth: No
Camera included: No
Channels quantity:60
Compatibility:DECT | GAP / DECT, GAP
Dimensions (WxDxH):70 x 72 x 28 / 83 x 80 x 38
EAN/UPC/GTIN (packaging):4250366830254
Frequency band:1.88 - 1.9 / 1.88 - 1.90 / 1880 - 1900
Full colour display: Yes
Full duplex: Yes
Handset:1 / 2 / 3 / Y
Handset keys:18 / Y
Internet connection required: No
Mac compatibility:No / Yes
Optical drive required: No
Output Power:<0.1W3 / <0.4W3
Output power description:<0.1W3 / <0.4W3
Power LED: Yes
Power over Ethernet (PoE): No
Resolution:128 x 128
TV Out:N
TV-Out :N
USB required: No
Wall mountable: Yes
Wi-Fi certified: No

Packaging Content

Analog line cable: Yes
Base station: Yes
Belt clip:No / Yes
Charger: Yes
Detachable belt-clip: No
Ethernet cable: No
Manual: Yes
Number of handsets included:1 / 2
Quick start guide:No / Yes
USB cable: No


Answering Machine:No / Yes
GAP compatible: Yes
Intercom:No / Yes
Keypad illumination:Y
Maximum indoor range:30 / 300 / 50
Maximum outdoor range:300 / 50 / 500
Recording Time:25
Ringer type:Monophonic / Polyphonic
Sound enhancement technology:HSP / HSP, HDSP

Phone features

Babyphone function: Yes
Dialer location:Handset
Downloadable ringtones: No
Message counter on base:No / Yes
Microphone mute: Yes
Multi base capability:1 / No
Multi handset capability:1 / 4 / 8
Night mode: Yes
Number of melodies:10 / 21 / 37
Number of SMS Boxes:1
Photo feature: No
Polyphonic ring: Yes
Short Message Service (SMS): Yes
Speakerphone: Yes
T9 text input: No
Vibrating Alert:No / Yes
VIP group function: Yes
VIP group with own melody: Yes
Wallpapers & colour schemes: Yes

Ports & interfaces

DC-in jack: Yes
Headset connectivity:2.5 mm
Plug and Play: Yes
TV out port: No
Wireless Connection:No / Yes


Battery Capacity:1000 / 550
Battery recharge time:13 / 8.5
Battery technology:Alkaline / Nickel-Metal Hydride (NiMH) / Nickel–Metal Hydride (NiMH)
Battery Type:AAA
Input frequency:50
Input Voltage:230
Number of Batteries Supported:2
Power consumption (typical):0.4 / 0.5
Power requirements:110 V, 60 Hz / 230VAC
Power Supply:0.4
Power supply type:AC / AC/DC
Standby time:160 / 300
Supported batteries:2 x AAA / AAA
Talk Time:18 / 20
USB powered: No

Technical Details

Keypad illumination: Yes

Weight & Dimensions

Base dimensions:103 x 114 x 32 / 114 x 32 x 103 / 115 x 127 x 39 / 127 x 39 x 115 / 28 x 70 x 72 / 69 x 37 x 86
Handset dimensions (WxDxH):151 x 26 x 49 / 26 x 49 x 151 / 55 x 31 x 166
Handset weight:100