Product comparison · 2 telephones

Philips Perfect sound CD1551B/51 telephone Caller ID Black vs Philips CD2501S/51 telephone Caller ID White

37specifications compared
8differ
29identical
12known for one product only

Key differences

The Philips CD2501S/51 telephone Caller ID White has 5 more redial list capacity than the Philips Perfect sound CD1551B/51 telephone Caller ID Black (10 vs 5). The Philips CD2501S/51 telephone Caller ID White has 10 more call log entries than the Philips Perfect sound CD1551B/51 telephone Caller ID Black (20 vs 10). The Philips CD2501S/51 telephone Caller ID White has 50 entries more phonebook capacity than the Philips Perfect sound CD1551B/51 telephone Caller ID Black (100 entries vs 50 entries). Only the Philips Perfect sound CD1551B/51 telephone Caller ID Black has answering machine. Product colour: Black on the Philips Perfect sound CD1551B/51 telephone Caller ID Black, White on the Philips CD2501S/51 telephone Caller ID White.

Answering machine
- Perfect sound CD1551B/51 telephone Caller ID Black:Yes
- CD2501S/51 telephone Caller ID White:No
Product colour
- Perfect sound CD1551B/51 telephone Caller ID Black:Black
- CD2501S/51 telephone Caller ID White:White
Redial list capacity
- Perfect sound CD1551B/51 telephone Caller ID Black:5
- CD2501S/51 telephone Caller ID White:10
Call log entries
- Perfect sound CD1551B/51 telephone Caller ID Black:10
- CD2501S/51 telephone Caller ID White:20
Phonebook capacity
- Perfect sound CD1551B/51 telephone Caller ID Black:50 entries
- CD2501S/51 telephone Caller ID White:100 entries
Multi handset capability
- Perfect sound CD1551B/51 telephone Caller ID Black:4
- CD2501S/51 telephone Caller ID White:5
Display
- Perfect sound CD1551B/51 telephone Caller ID Black:TN
- CD2501S/51 telephone Caller ID White:STN
Base dimensions (WxDxH)
- Perfect sound CD1551B/51 telephone Caller ID Black:120 x 114 x 83 mm
- CD2501S/51 telephone Caller ID White:119 x 113 x 83 mm

Side by side

Differences highlightedShow differences only

Comparison of CD1551B/51, CD2501S/51
49 specifications	A Philips Perfect sound CD1551B/51 telephone Caller ID Black Model CD1551B/51 View product	B Philips CD2501S/51 telephone Caller ID White Model CD2501S/51 View product
Performance1 differ
Answering machineDiffers	Yes	No
Recording timeKnown for one	10 min	Unknown — not stated by the source
Intercom	No	No
Maximum indoor rangeKnown for one	50 m	Unknown — not stated by the source
Maximum outdoor rangeKnown for one	300 m	Unknown — not stated by the source
Ringer type	Polyphonic	Polyphonic
GAP compatibleKnown for one	Unknown — not stated by the source	Yes
Design1 differ
Mounting type	Desk	Desk
Product colourDiffers	Black	White
Integrated antenna	Yes	Yes
Call management2 differ
Caller ID	Yes	Yes
Redial list capacityDiffers	5	10
Conference callKnown for one	Yes	Unknown — not stated by the source
Call blocking	Yes	Yes
Call log entriesDiffers	10	20
Call waiting	Yes	Yes
Explicit call transfer	Yes	Yes
Caller ID on call waitingKnown for one	Unknown — not stated by the source	Yes
Phone features2 differ
Phonebook capacityDiffers	50 entries	100 entries
Dialing	Tone/Pulse	Tone/Pulse
Microphone mute	Yes	Yes
Multi base capability	1	1
Multi handset capabilityDiffers	4	5
Paging function	Yes	Yes
SpeakerphoneKnown for one	Unknown — not stated by the source	Yes
Management featuresidentical
Volume control	Digital	Digital
Alarm clockKnown for one	Unknown — not stated by the source	Yes
Indicationidentical
Battery charge indicator	Yes	Yes
Display1 differ
Built-in display	Yes	Yes
DisplayDiffers	TN	STN
Backlight colour	Amber	Amber
Backlight display	Yes	Yes
Display number of colours	Monochrome	Monochrome
Display number of linesKnown for one	Unknown — not stated by the source	1 lines
Ports & interfacesidentical
Plug and PlayKnown for one	Yes	Unknown — not stated by the source
Wireless connection	Yes	Yes
Poweridentical
AC input voltage	220 - 240 V	220 - 240 V
AC input frequency	50 Hz	50 Hz
Battery type	AAA	AAA
Number of batteries supported	2	2
Talk time	12 h	12 h
Standby time	150 h	150 h
Weight & dimensions1 differ
Base dimensions (WxDxH)Differs	120 x 114 x 83 mm	119 x 113 x 83 mm
Handset dimensions (WxDxH)	162 x 48 x 29 mm	162 x 48 x 29 mm
Packaging contentidentical
Number of handsets included	1	1
Base stationKnown for one	Unknown — not stated by the source	Yes
Batteryidentical
Battery technology	Nickel-Metal Hydride (NiMH)	Nickel-Metal Hydride (NiMH)
Battery capacityKnown for one	550 mAh	Unknown — not stated by the source
Other featuresidentical
Signal strength indication	Yes	Yes

A dash means the value is not stated by the source. Unknown values are never counted for or against a product, and there is no overall score.

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