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Product comparison · 2 ip phones

Yealink SIP-T56A IP phone Black LCD vs Yealink T42S Skype for Business Edition

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  • 44specifications compared
  • 17differ
  • 27identical
  • 47known for one product only

Key differences

The Yealink SIP-T56A IP phone Black LCD has 0.8 A more AC adapter output current than the Yealink T42S Skype for Business Edition (2 A vs 1.2 A). The Yealink SIP-T56A IP phone Black LCD has 0.1 W more power consumption (typical) than the Yealink T42S Skype for Business Edition (1.5 W vs 1.4 W). The Yealink SIP-T56A IP phone Black LCD has 47.4 mm more width than the Yealink T42S Skype for Business Edition (259.4 mm vs 212 mm). Only the Yealink SIP-T56A IP phone Black LCD has touchscreen. Product colour: Black on the Yealink SIP-T56A IP phone Black LCD, Black, Silver on the Yealink T42S Skype for Business Edition.

  • Product colour
    • Black
    • Black, Silver
  • Display resolution
    • 1024 x 600 pixels
    • 192 x 64 pixels
  • Touchscreen
    • Yes
    • No
  • Security algorithms
    • SRTP
    • 802.1x RADIUS, HTTPS
  • AC adapter output current
    • 2 A
    • 1.2 A
  • Power consumption (typical)
    • 1.5 W
    • 1.4 W
  • Operating temperature (T-T)
    • -10 - 40 °C
    • -10 - 50 °C
  • Width
    • 259.4 mm
    • 212 mm

Side by side

Differences highlightedShow differences only
91 specifications
A

Yealink

SIP-T56A IP phone Black LCD

Model SIP-T56A

View product
B

Yealink

T42S Skype for Business EditionView product
Design1 differ
Product typeIP PhoneIP Phone
Handset typeWired handsetWired handset
Product colourDiffersBlackBlack, Silver
Device lockKnown for oneYes
Keypad illuminationKnown for oneYes
MountingKnown for oneDesk/Wall
Wall mountableKnown for oneYes
Performanceidentical
Data transfer rateKnown for one1000 Mbit/s
Operating system installedKnown for oneAndroid
Operating system versionKnown for one5.1.1
Dual-Tone Multi-Frequency (DTMF) modesKnown for oneIn-band, Out-of band, SIP info
Phone featuresidentical
Call forwardingYesYes
Call historyKnown for oneYes
Call holdYesYes
Call parkYesYes
Call pick upYesYes
Call transferYesYes
Call waitingYesYes
Caller IDYesYes
Full duplexYesYes
Message-waiting indicator (MWI)YesYes
RedialingYesYes
Answering machineKnown for oneYes
Anonymous callKnown for oneYes
Anonymous call rejectionKnown for oneYes
Conference callKnown for oneYes
Distinctive ringKnown for oneYes
Do not disturb functionKnown for oneYes
IntercomKnown for oneYes
Number of VoIP accountsKnown for one16
Phonebook capacityKnown for one1000 entries
Phonebook sharingKnown for oneYes
Speed diallingKnown for oneYes
Management featuresidentical
Volume controlKnown for oneDigital
Edit user status on the phoneKnown for oneYes
Display contacts list statusKnown for oneYes
Plug and PlayKnown for oneYes
Integrated voicemailKnown for oneYes
Base station keysKnown for one27
Display2 differ
DisplayLCDLCD
Display diagonalKnown for one6.86 cm (2.7")
Display resolutionDiffers1024 x 600 pixels192 x 64 pixels
Display number of coloursKnown for oneMonochrome
TouchscreenDiffersYesNo
Backlight displayKnown for oneYes
Touchscreen typeKnown for oneCapacitive
Cameraidentical
Front cameraKnown for oneNo
Audio1 differ
SpeakerphoneYesYes
Comfort noise generation (CNG)Known for oneYes
Packet loss concealment (PLC)Known for oneYes
Voice codecsDiffersG.711Mu, G.711a, G.722, G.722.1, G.722.1C, G.723, G.726, G.729ab, iLBCAJB, CNG, G.711, G.722, G.723, G.726, G.729A, G.729B, PLC, VAD, iLBC
Automatic gain controlKnown for oneYes
Network3 differ
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/s
Wi-FiNoNo
BluetoothNoNo
DHCP clientKnown for oneYes
Networking standardsDiffersIEEE 802.1xIEEE 802.1Q, IEEE 802.1p, IEEE 802.1x, IEEE 802.3af
Quality of Service (QoS) supportKnown for oneYes
Security algorithmsDiffersSRTP802.1x RADIUS, HTTPS
Supported network protocolsDiffersFTP/TFTP/HTTP/HTTPS, IPv4/IPv6, UDP/TCP/DNS-SRVSIP v1 (RFC2543), v2 (RFC3261), IPv4/IPv6
SyslogKnown for oneYes
Ethernet LAN interface typeKnown for oneGigabit Ethernet
Ports & interfacesidentical
Headset connectivityKnown for oneRJ-9
USB 2.0 ports quantity11
DC-in jackKnown for oneYes
Ethernet LAN (RJ-45) ports22
Internet connection requiredKnown for oneYes
RJ-9 ports quantity22
Certificatesidentical
SkypeKnown for oneYes
Power2 differ
Power over Ethernet (PoE)YesYes
AC adapter input voltage100 - 240 V100 - 240 V
AC adapter output voltageKnown for one5 V
AC adapter output currentDiffers2 A1.2 A
Power consumption (typical)Differs1.5 W1.4 W
Operational conditions1 differ
Operating relative humidity (H-H)10 - 95%10 - 95%
Operating temperature (T-T)Differs-10 - 40 °C-10 - 50 °C
Weight & dimensions7 differ
WidthDiffers259.4 mm212 mm
DepthDiffers235.2 mm189 mm
HeightDiffers194.5 mm175 mm
WeightKnown for one6.4 kg
Package widthDiffers299 mm246 mm
Package depthDiffers293 mm223 mm
Package heightDiffers128 mm120 mm
Package weightDiffers8.3 kg7 kg
Packaging contentidentical
Analog line cableKnown for oneYes
Base stationYesYes
Cables includedLAN (RJ-45)LAN (RJ-45)
Ethernet cableKnown for oneYes
ManualYesYes
Number of handles included1 pc(s)1 pc(s)

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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