Best Isdn Telefone 2026

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Last Updated - 22.07.2026

Best Choice

01

Gigaset

Gigaset SX810A ISDN Cordless Phone - Steel Grey

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Office telephone, talk time up to 13 hours, standby time up to 180 hours, range of house approx. 50 m, outdoor approx. 300 m, answering machine recording up to 55 minutes, handset 125 g
Illuminated TFT colour display, display of date, time, duration, caller image, number, ringtones, many functions (see PDF product data sheet below)
Desktop phone, brilliant sound, baby phone, headset, Bluetooth, redial, backlit keyboard, hands-free calling, conference, SMS function
Comfort telephone, address book 500 contacts, redial, calendar, anniversary, picture clip, PC sync, cloud sync, six handsets expandable
Box contents: Gigaset SX810A Isdn, handset S810H, charging cradle, power supply 230 V, telephone cable, batteries, belt clip, instructions, analogue telephone, steel grey

238,90 €
02

Gigaset

Gigaset S810H Phone - Cordless Phone / Universal Handset - with Colour Display - Dect Phone - Cordless Phone / Hands-Free Calling / Router - Compatible, Platinum

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Office telephone - talk time up to 12 hours and standby time up to 300 hours; range approx. 50 m / outdoors approx. 300 m; handset 114 g
Design phone - beautiful phone - illuminated TFT colour display; shows date; time; duration; SMS; caller image; ringtones - many functions see PDF product data sheet below
Comfort telephone - address book for 500 contacts; with email; anniversary; own VIP melody; picture clip/vCard transfer; speed dial for important numbers
Box contents: Gigaset S810H additional handset for extension - with charging cradle; power supply 230 V; telephone cable; batteries; belt clip; instructions; analogue phone in silver black
Additional handset - for extension as a desktop phone - brilliant HDSP sound with speaker; baby phone/intercom function; connect headset via Bluetooth; conference / SMS function

218,90 €
03

Auerswald

Auerswald COMfortel 1400 Analog telephone Caller ID Black COMfortel 1400, Analog telephone, Speakerphone, 1600 entries, Caller ID, Black

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9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Operating System: Windows

205,53 €
Value for Money

04

Gigaset

Gigaset AS690A - cordless phone with 1 handset - DECT phone with hands-free function, large display, large buttons - landline phone, black

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9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Strong functions: integrated answering machine with up to 20 minutes recording time, brilliant sound quality (even when hands-free calling), 5-level volume control, call protection for 32 lock numbers
Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco Dect technology ensures reduced energy consumption
Easy installation – simply connect the base station to the wall phone socket and start making calls directly – benefit from a quick and easy setup of your new phone
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Box contents: 1 x base station Gigaset AS690A with integrated answering machine, 1 x Gigaset AS690 handset, 1 x power supply, 1 x telephone connection cable, 2 x AAA batteries (NiMH)
A reliable companion – the Gigaset AS690A impresses with a large, high-contrast display and ensures best readability thanks to the extra large number display in dial mode. Only compatible in Germany - more information on the Gigaset homepage.

42,77 €
05

Gigaset

Gigaset Desk 800A Corded Telephone with Answering Machine - Three-Line LCD Display - 5-Way Navigation Button - Hands-Free Function - MFV or Pulse Selection Black [German Version]

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quality for every requirement – the latest technologies and the highest quality characterise the Gigaset phones – ideal for home or office – the DESK 800A can be used as a desk phone and as a wall phone
Flexible telephoning – The DESK 800A has a hands-free function with 7 volume levels – the RJ9 allows you to connect a headset – thanks to the EU standard (ITUT P,370), the device is hearing aid suitable
Easy installation – connect with analogue phone connection and start calling directly, supports MFV or pulse selection, with 10 adjustable melodies and the storage option of up to 200 contacts
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Communicative - Three-line display with LED backlight, provides an overview of call time, name and number of the caller - the answering machine records up to 50 minutes of call time - the call list stores the 50 last entries. Only compatible in Germany - more information on the Gigaset homepage.
Box contents: 1 x DESK 800A desk telephone, 1 x telephone connection cable (a/b), 1 x power supply, 1 x user manual (English language not guaranteed), 1 x handset connection cable, 1 x stand

71,99 €
06

Gigaset

Gigaset AS690A - cordless phone with answering machine - DECT phone with hands-free function, large display, large buttons - landline phone, white

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8.8

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Strong functions: integrated answering machine with up to 20 minutes recording time, brilliant sound quality (even when hands-free calling), 5-level volume control, call protection for 32 lock numbers
Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco Dect technology ensures reduced energy consumption
Easy installation – simply connect the base station to the wall phone socket and start making calls directly – benefit from a quick and easy setup of your new phone
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Box contents: 1 x base station Gigaset AS690A with integrated answering machine, 1 x Gigaset AS690 handset, 1 x power supply, 1 x telephone connection cable, 2 x AAA batteries (NiMH)
A reliable companion – the Gigaset AS690HX impresses with a large, high-contrast display and ensures best readability thanks to the extra large number display in dial mode. Only compatible in Germany - more information on the Gigaset homepage.

45,99 €
07

Gigaset

Gigaset CL660 - Cordless phone with large TFT color display - User interface, Large Address Book, Slim Design Telephone, Anthracite Black

14% Off

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8.7

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco Dect technology ensures reduced energy consumption
Highest functionality: brilliant sound quality even when hands-free calling, address book for up to 400 contacts, PC connection via micro USB, individual image setting and ringtone setting
Exceptionally beautiful – the Gigaset CL660 impresses with its slim design and high-quality workmanship, optimal ease of use thanks to large, high-resolution colour display. Only compatible in Germany - more information on the Gigaset homepage.
Easy installation – simply connect the base station to the wall phone socket and start making calls directly – benefit from a quick and easy setup of your phone
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Box contents: 1 x base station Gigaset CL660, 1 x Gigaset CL660 handset, 1 x charging cradle, 1 x power supply, 1 x telephone connection cable, 2 x AAA NiMH battery, 1 x battery cover, 1 x instructions (English language not guaranteed)

62,99 € 72,99 €(14% Off off)
08

Gigaset

Siemens Gigaset 4135 ISDN Midnight Blue

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8.6

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Siemens Gigaset 4135 ISDN desk phone, VoIP compatible

199,90 €
09

Gigaset

Gigaset telephones - simply a more beautiful way to communicate

24% Off

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8.5

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

Show more
Main highlights

Quality made in Germany – designed and manufactured in Germany – the environmentally friendly Eco Dect technology ensures reduced energy consumption
Highest functionality: brilliant sound quality even when hands-free calling, address book for up to 400 contacts, PC connection via micro USB, individual image setting and ringtone setting
Exceptionally beautiful – the Gigaset CL660HX impresses with its modern, slim design and high-quality workmanship – optimal ease of use thanks to large, high-resolution colour display. Only compatible in Germany - more information on the Gigaset homepage.
Do you have any questions about this product? Contact Gigaset customer service at 02871-912 912 (for your provider's landline tariff)
Connection to existing base – this is not included. Connection with standard routers with DECT/CAT-iq functionality, e.g. AVM FRITZ!Box, Speedport or as an extension of your Gigaset DECT base system
Box contents: 2 x Gigaset CL660HX handsets, 2 x charging cradles, 2 x power supply, 4 x AAA NiMH batteries, 2 x battery covers, 1 x instructions (English language not guaranteed)

99,00 € 129,99 €(24% Off off)
10

Deutsche Telekom

Telekom Sinus P300I Collection

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8.4

Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

T-ISDN performance support
Important numbers are quickly available on the destination dialing keys
Easy and intuitive operation
Convenient hands-free function for long-time callers

199,90 €