Visit our Business Solutions website >>

British Telecom Synergy 4500

British Telecom Synergy 4500
alaScore 64

18 reviews

Aug, 2018

alaTest has collected and analyzed 18 reviews of British Telecom Synergy 4500. The average rating for this product is 1.6/5, compared to an average rating of 4.0/5 for other Cordless Phones for all reviews.

We analyzed user and expert ratings, product age and more factors. Compared to other Cordless Phones the British Telecom Synergy 4500 is awarded an overall alaScore™ of 64/100 = Good quality.

Review analysis

(Based on 18 reviews)

User Reviews  


Below is a list of reviews for this or similar products. If you think this grouping is wrong please click here to flag.
Read more on our FAQ’s page.
Showing 1 - 18 of 18 Show Reviews: in English

Consumer review ( review summary for British Telecom Synergy 4500


alaTest has collected and analyzed 18 user reviews of British Telecom Synergy 4500 from The average user rating for this product is 1.6/5, compared to an average user rating of 4.1/5 for other Cordless Phones on

11% of the reviews on give this product a positive rating.

Aug, 2018

Product Specifications

BT is one of Europe's leading providers of telecommunications services. Its principal activities include local, national and international telecommunications services, higher-value broadband and Internet products and services, and IT solutions. PRODUCT FEATURES: 255 name & number phonebook; SIM card reader / writer; Call waiting; Caller display; GAP compatibility; 15 handset ringer melodies; Up to 10 hours talk & up to 100 hours standby time; Range up to 300m outdoors & 50m indoors; Answer machine - up to 11.5 minutes digital recording time.

Answering Machine

Answering System Type:Digital
Recording Capacity:11.5min


Standby Time:100 h
Talk Time:600 min

Call Management

Call waiting: Yes
Conference call: Yes
Explicit call transfer: Yes


Backlight buttons:No / Yes
Color of product:Black


Backlight color:Blue
Display number of colors:Monochrome
Display number of lines:4
Type:LCD display

Energy Management

Battery performance:750
Battery Technology:Nickel-Metal Hydride (NiMH)
Battery Type:AAA
Standby Time:100
Talk Time:10


Manufacturer:British Telecommunications / BT
Model:4500 SMS quad/4500 SMS trio/4500 SMS Twin
Packaged Quantity:1
Product Line:BT Synergy


Battery capacity indicator: Yes
LED on base: Yes
LED on handset: Yes

Management Features

Alarm clock: Yes
Volume Control:Digital


Call list capacity phonebook:50
Phonebook capacity:255
Redial list capacity:20
SMS storage capacity:50

Other Features

Camera included: No
Mac compatibility: No


Answering machine:Y
Base station memory card reader:SIM
Integrated answering machine: Yes
Maximum indoor range:1968.5
Maximum outdoor range:11811
Recording Time:11 / 11.5

Phone Features

Dialer location:Handset
Microphone mute: Yes
Multi base capability:4
Multi handset capability:5
Polyphonic ring: Yes
Speakerphone: Yes

Ports & interfaces

Wireless connection:N / Y
Wireless connections:No / Yes


Battery Capacity:750
Battery Technology:Nickel-Metal Hydride (NiMH)
Battery Type:AAA
Standby Time:100
Talk Time:10


Conference Call Capability: Yes
Cordless Phone Standard:DECTGAP
Dialer Type:Keypad
Header Features:W/ call waiting caller ID & answering system
Type:Cordless phone

Telephone Features

Caller ID: Yes
Handset Locator: Yes
Speakerphone: Yes

Weight & Dimensions

Base dimensions:4.72 x 6.3 x 1.97 / 5.51 x 5.91 x 4.72
Base weight:22.2 / 7.34
Handset dimensions (WxDxH):1.97 x 0.984 x 5.91
Handset weight:4.3