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Product comparison · 2 ip phones

Yealink SIP- T31W vs Yealink SIP T42U

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  • 37specifications compared
  • 12differ
  • 25identical
  • 38known for one product only

Key differences

The Yealink SIP T42U has 10 more VoIP accounts than the Yealink SIP- T31W (12 vs 2). The Yealink SIP T42U has 0.5 W more power consumption (typical) than the Yealink SIP- T31W (2.2 W vs 1.7 W). The Yealink SIP T42U has 24 mm more width than the Yealink SIP- T31W (212 mm vs 188 mm). Only the Yealink SIP- T31W has integrated voicemail. Only the Yealink SIP T42U has Bluetooth.

  • Handset type
    • Wired handset
    • Wireless handset
  • Number of VoIP accounts
    • 2
    • 12
  • Integrated voicemail
    • Yes
    • No
  • Display diagonal
    • 5.84 cm (2.3")
    • 6.86 cm (2.7")
  • Display resolution
    • 132 x 64 pixels
    • 192 x 68 pixels
  • Ethernet LAN interface type
    • Fast Ethernet
    • Gigabit Ethernet
  • Bluetooth
    • No
    • Yes
  • Power consumption (typical)
    • 1.7 W
    • 2.2 W

Side by side

Differences highlightedShow differences only
75 specifications
A

Yealink

SIP- T31WView product
B

Yealink

SIP T42UView product
Design1 differ
Product typeIP PhoneIP Phone
Handset typeDiffersWired handsetWireless handset
Product colourGreyGrey
Wall mountableYesYes
Device lockKnown for oneYes
MountingKnown for oneDesk/Wall
Phone features1 differ
Lines quantityKnown for one2 lines
Answering machineKnown for oneYes
Anonymous callYesYes
Anonymous call rejectionYesYes
Call forwardingYesYes
Call holdYesYes
Call parkYesYes
Call pick upYesYes
Call returnKnown for oneYes
Call transferYesYes
Call waitingYesYes
Caller IDYesYes
Do not disturb functionYesYes
Emergency callKnown for oneYes
Full duplexYesYes
Number of VoIP accountsDiffers212
Phonebook capacity1000 entries1000 entries
RedialingYesYes
Short Message Service (SMS)Known for oneYes
Speed diallingYesYes
Call historyKnown for oneYes
Conference callKnown for oneYes
Direct callKnown for oneYes
Distinctive ringKnown for oneYes
Management features1 differ
Integrated voicemailDiffersYesNo
Voicemail indicationKnown for oneYes
Keypad number of keysKnown for one11
Number of function keysKnown for one5
Number of programmable keysKnown for one6
Display2 differ
DisplayLCDLCD
Display diagonalDiffers5.84 cm (2.3")6.86 cm (2.7")
Display resolutionDiffers132 x 64 pixels192 x 68 pixels
Display number of linesKnown for one2 lines
Backlight displayKnown for oneYes
Audioidentical
SpeakerphoneKnown for oneYes
Microphone muteKnown for oneYes
Comfort noise generation (CNG)Known for oneYes
Packet loss concealment (PLC)Known for oneYes
Voice codecsKnown for oneAEC, AGC, AJB, G.711, G.711a, G.722, G.723.1, G.726, G.729, G.729A, G.729B, G.729ab, VAD, iLBC
Network3 differ
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100 Mbit/s
Ethernet LAN interface typeDiffersFast EthernetGigabit Ethernet
Wi-FiYesYes
Wi-Fi standardsKnown for one802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac)
BluetoothDiffersNoYes
Security algorithmsDiffersAES, WPA2, WPA3256-bit AES, HTTPS, TLS, WPA2, WPA3
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
Supported network protocolsKnown for oneIPv4/IPv6, SIP v1 (RFC2543), v2 (RFC3261), UDP/TCP/DNS-SRV (RFC 3263)
Ports & interfacesidentical
Ethernet LAN (RJ-45) ports22
RJ-9 ports quantity22
USB 2.0 ports quantityKnown for one2
Power1 differ
Power over Ethernet (PoE)Known for oneYes
AC adapter input voltageKnown for one100 - 240 V
Power consumption (typical)Differs1.7 W2.2 W
Power consumption (Power over Ethernet (PoE))Known for one2.6 W
Operational conditions1 differ
Operating relative humidity (H-H)10 - 95%10 - 95%
Operating temperature (T-T)Differs-10 - 45 °C-10 - 50 °C
Storage temperature (T-T)Known for one-30 - 70 °C
Weight & dimensions2 differ
WidthDiffers188 mm212 mm
Depth189 mm189 mm
HeightDiffers162 mm175 mm
Package widthKnown for one627 mm
Package depthKnown for one256 mm
Package heightKnown for one235 mm
Package weightKnown for one63 kg
Packaging contentidentical
Number of handles included1 pc(s)1 pc(s)
AC adapter includedKnown for oneNo
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.

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