Philips Combo phone DCTG1721B/93 vs Philips Combo phone with answering machine DCTG1771B/93

Comparison of DCTG1721B/93, DCTG1771B/93

38 specifications	A Philips Combo phone DCTG1721B/93 Model DCTG1721B/93 View product	B Philips Combo phone with answering machine DCTG1771B/93 Model DCTG1771B/93 View product
Performance1 differ
Answering machineDiffers	No	Yes
Recording timeKnown for one	—Unknown — not stated by the source	30 min
Intercom	No	No
Maximum indoor range	50 m	50 m
Maximum outdoor range	300 m	300 m
Ringer type	Polyphonic	Polyphonic
Designidentical
Mounting type	Desk	Desk
Product colour	Black	Black
Integrated antenna	Yes	Yes
Phone featuresidentical
Speakerphone	Yes	Yes
DialingKnown for one	—Unknown — not stated by the source	Tone/Pulse
Microphone mute	Yes	Yes
Multi base capability	1	1
Multi handset capability	3	3
Paging function	Yes	Yes
Call managementidentical
Caller ID	Yes	Yes
Conference call	Yes	Yes
Call log entries	40	40
Call waiting	Yes	Yes
Explicit call transfer	Yes	Yes
Management featuresidentical
Volume control	Digital	Digital
Indicationidentical
Battery charge indicator	Yes	Yes
LED indicators	Yes	Yes
Displayidentical
Built-in display	Yes	Yes
Display	TN	TN
Backlight colour	Amber	Amber
Backlight display	Yes	Yes
Display number of colours	Monochrome	Monochrome
Ports & interfacesidentical
Plug and PlayKnown for one	—Unknown — not stated by the source	Yes
Poweridentical
AC input voltage	100 - 240 V	100 - 240 V
AC input frequency	50 - 60 Hz	50 - 60 Hz
Battery type	AAA	AAA
Number of batteries supported	2	2
Talk time	6 h	6 h
Standby time	140 h	140 h
Batteryidentical
Battery capacity	550 mAh	550 mAh
Battery technologyKnown for one	Nickel-Metal Hydride (NiMH)	—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.