All categories
Phones & WearablesView all 31

Departments

Phones & WearablesComputers & TabletsComponents & StorageNetworkingPrinting & OfficePower & ChargingTV, Audio & VideoGaming, Toys & RobotsKitchen AppliancesHome AppliancesPersonal Care & HealthSmart Home & SecurityCar & MobilityTools & GardenCameras & Photo

Shopping country

Browse

All categoriesCompare products

Product comparison · 2 ip phones

Yealink SIP T42U vs Yealink W78P IP phone Black TFT

Add a product
  • 34specifications compared
  • 11differ
  • 23identical
  • 61known for one product only

Key differences

The Yealink W78P IP phone Black TFT has 1 more function keys than the Yealink SIP T42U (6 vs 5). The Yealink SIP T42U has 1 more Ethernet LAN (RJ-45) ports than the Yealink W78P IP phone Black TFT (2 vs 1). The Yealink SIP T42U has 55.45 kg more package weight than the Yealink W78P IP phone Black TFT (63 kg vs 7.55 kg). Only the Yealink W78P IP phone Black TFT has integrated voicemail. Only the Yealink W78P IP phone Black TFT has AC adapter included.

  • Product type
    • IP Phone
    • IP mobile phone
  • Product colour
    • Grey
    • Black
  • Integrated voicemail
    • No
    • Yes
  • Number of function keys
    • 5
    • 6
  • Display
    • LCD
    • TFT
  • Display diagonal
    • 6.86 cm (2.7")
    • 6.1 cm (2.4")
  • Display resolution
    • 192 x 68 pixels
    • 240 x 320 pixels
  • Ethernet LAN interface type
    • Gigabit Ethernet
    • Fast Ethernet

Side by side

Differences highlightedShow differences only
95 specifications
A

Yealink

SIP T42UView product
B

Yealink

W78P IP phone Black TFT

Model W78P

View product
Design2 differ
Product typeDiffersIP PhoneIP mobile phone
Handset typeWireless handsetWireless handset
Product colourDiffersGreyBlack
Backlight keypadKnown for oneYes
Device lockYesYes
MountingDesk/WallDesk/Wall
Wall mountableYesYes
Performanceidentical
DECT connectableKnown for oneYes
Maximum indoor rangeKnown for one50 m
Maximum outdoor rangeKnown for one300 m
Hearing aid compatibilityKnown for oneYes
Phone featuresidentical
Answering machineKnown for oneYes
Simultaneous ringKnown for oneYes
Anonymous callYesYes
Anonymous call rejectionYesYes
Call forwardingYesYes
Call historyYesYes
Call holdYesYes
Call transferYesYes
Call waitingYesYes
Caller IDYesYes
Conference callYesYes
Direct callYesYes
Emergency callKnown for oneYes
Full duplexYesYes
IntercomKnown for oneYes
Message-waiting indicator (MWI)Known for oneYes
Phonebook capacity1000 entries1000 entries
RedialingYesYes
Speed diallingYesYes
Vibrating alertKnown for oneYes
Call parkKnown for oneYes
Call pick upKnown for oneYes
Distinctive ringKnown for oneYes
Do not disturb functionKnown for oneYes
Number of VoIP accountsKnown for one12
Management features2 differ
Integrated voicemailDiffersNoYes
Keypad number of keysKnown for one25
Number of function keysDiffers56
Firmware upgradeableKnown for oneYes
Number of programmable keysKnown for one6
Display3 differ
DisplayDiffersLCDTFT
Display diagonalDiffers6.86 cm (2.7")6.1 cm (2.4")
Display resolutionDiffers192 x 68 pixels240 x 320 pixels
Number of simultaneous touchpointsKnown for one20
Audioidentical
SpeakerphoneKnown for oneYes
Automatic gain controlKnown for oneYes
Comfort noise generation (CNG)Known for oneYes
Noise reductionKnown for oneYes
Number of melodiesKnown for one9
Network1 differ
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100 Mbit/s
Ethernet LAN interface typeDiffersGigabit EthernetFast Ethernet
BluetoothYesYes
Bluetooth versionKnown for one5.1
DHCP clientKnown for oneYes
Wi-FiKnown for oneYes
Networking standardsKnown for oneIEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1x, IEEE 802.3af
Quality of Service (QoS) supportKnown for oneYes
Security algorithmsKnown for one256-bit AES, HTTPS, TLS, WPA2, WPA3
Supported network protocolsKnown for oneIPv4/IPv6, SIP v1 (RFC2543), v2 (RFC3261), UDP/TCP/DNS-SRV (RFC 3263)
Ports & interfaces1 differ
Ethernet LAN (RJ-45) portsDiffers21
USB 2.0 ports quantityKnown for one2
RJ-9 ports quantityKnown for one2
Certificatesidentical
CertificationKnown for oneCE, FCC, RoHS, REACH, ISO 9001
Compliance certificatesKnown for oneRoHS, Federal Communications Commission (FCC), CE, REACH
Poweridentical
Power over Ethernet (PoE)Known for oneNo
AC adapter input voltageKnown for one100 - 240 V
Standby timeKnown for one166 h
Talk timeKnown for one21 h
Power consumption (typical)Known for one2.2 W
Batteryidentical
Battery technologyKnown for oneLithium-Ion (Li-Ion)
Battery capacityKnown for one1460 mAh
Battery voltageKnown for one3.7 V
Operational conditionsidentical
Operating relative humidity (H-H)10 - 95%10 - 95%
Operating temperature (T-T)-10 - 50 °C-10 - 50 °C
Storage temperature (T-T)Known for one-30 - 70 °C
Weight & dimensions1 differ
WeightKnown for one6.84 kg
Handset dimensions (WxDxH)Known for one157 x 51 x 24 mm
Base dimensions (WxDxH)Known for one130 x 100 x 25.1 mm
Package weightDiffers63 kg7.55 kg
WidthKnown for one212 mm
DepthKnown for one189 mm
HeightKnown for one175 mm
Package widthKnown for one627 mm
Package depthKnown for one256 mm
Package heightKnown for one235 mm
Packaging content1 differ
AC adapter includedDiffersNoYes
Base stationKnown for oneYes
ChargerKnown for oneYes
Ethernet cableKnown for oneYes
HandsetKnown for oneYes
ManualKnown for oneYes
Number of handles included1 pc(s)1 pc(s)
Cameraidentical
Rear cameraKnown for oneYes

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.

More ip phone comparisons

All ip phone comparisons