Product comparison · 2 ip phones

AudioCodes 425HD TAA IP-Phone PoE GbE black vs Yealink SIP T42U

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  • 38specifications compared
  • 19differ
  • 19identical
  • 42known for one product only

Key differences

The AudioCodes 425HD TAA IP-Phone PoE GbE black has 2 more programmable keys than the Yealink SIP T42U (8 vs 6). The Yealink SIP T42U has 1 more RJ-9 ports quantity than the AudioCodes 425HD TAA IP-Phone PoE GbE black (2 vs 1). The Yealink SIP T42U has 1.6 mm more width than the AudioCodes 425HD TAA IP-Phone PoE GbE black (212 mm vs 210.4 mm). Only the Yealink SIP T42U has Wi-Fi. Only the Yealink SIP T42U has Bluetooth.

  • Handset type
    • 425HD TAA IP-Phone PoE GbE black:Wired handset
    • SIP T42U:Wireless handset
  • Product colour
    • 425HD TAA IP-Phone PoE GbE black:Black
    • SIP T42U:Grey
  • Number of programmable keys
    • 425HD TAA IP-Phone PoE GbE black:8
    • SIP T42U:6
  • Display diagonal
    • 425HD TAA IP-Phone PoE GbE black:8.89 cm (3.5")
    • SIP T42U:6.86 cm (2.7")
  • Display resolution
    • 425HD TAA IP-Phone PoE GbE black:320 x 480 pixels
    • SIP T42U:192 x 68 pixels
  • Wi-Fi
    • 425HD TAA IP-Phone PoE GbE black:No
    • SIP T42U:Yes
  • Bluetooth
    • 425HD TAA IP-Phone PoE GbE black:No
    • SIP T42U:Yes
  • RJ-9 ports quantity
    • 425HD TAA IP-Phone PoE GbE black:1
    • SIP T42U:2

Side by side

Differences highlightedShow differences only (off)
Comparison of 425HD, SIP T42U
80 specifications
Design2 differ
Product typeIP PhoneIP Phone
Handset typeDiffersWired handsetWireless handset
Product colourDiffersBlackGrey
Device lockKnown for oneUnknown — not stated by the sourceYes
MountingKnown for oneUnknown — not stated by the sourceDesk/Wall
Wall mountableKnown for oneUnknown — not stated by the sourceYes
Performanceidentical
Dual-Tone Multi-Frequency (DTMF) modesKnown for oneSIP infoUnknown — not stated by the source
Phone featuresidentical
Lines quantityKnown for one4 linesUnknown — not stated by the source
Answering machineKnown for oneYesUnknown — not stated by the source
Call forwardingYesYes
Call holdYesYes
Call parkYesYes
Call pick upYesYes
Call transferYesYes
Call waitingYesYes
Caller IDYesYes
Conference callYesYes
Do not disturb functionYesYes
Full duplexYesYes
Message-waiting indicator (MWI)Known for oneYesUnknown — not stated by the source
RedialingYesYes
Speed diallingYesYes
Anonymous callKnown for oneUnknown — not stated by the sourceYes
Anonymous call rejectionKnown for oneUnknown — not stated by the sourceYes
Call historyKnown for oneUnknown — not stated by the sourceYes
Direct callKnown for oneUnknown — not stated by the sourceYes
Distinctive ringKnown for oneUnknown — not stated by the sourceYes
Number of VoIP accountsKnown for oneUnknown — not stated by the source12
Phonebook capacityKnown for oneUnknown — not stated by the source1000 entries
Management features1 differ
Volume controlKnown for oneButtonsUnknown — not stated by the source
Number of programmable keysDiffers86
Integrated voicemailKnown for oneUnknown — not stated by the sourceNo
Number of function keysKnown for oneUnknown — not stated by the source5
Display2 differ
DisplayLCDLCD
Display diagonalDiffers8.89 cm (3.5")6.86 cm (2.7")
Display resolutionDiffers320 x 480 pixels192 x 68 pixels
TouchscreenKnown for oneNoUnknown — not stated by the source
Audioidentical
SpeakerphoneKnown for oneYesUnknown — not stated by the source
Microphone muteKnown for oneYesUnknown — not stated by the source
Adaptive jitter buffersKnown for oneYesUnknown — not stated by the source
Echo cancellationKnown for oneYesUnknown — not stated by the source
Packet loss concealment (PLC)Known for oneYesUnknown — not stated by the source
Voice activity detectionKnown for oneYesUnknown — not stated by the source
Voice codecsKnown for oneG.711, G.722, G.729, OPUSUnknown — not stated by the source
Network5 differ
Ethernet LANYesYes
Ethernet LAN data ratesKnown for one10,100,1000 Mbit/sUnknown — not stated by the source
Ethernet LAN interface typeGigabit EthernetGigabit Ethernet
Wi-FiDiffersNoYes
BluetoothDiffersNoYes
Networking standardsDiffersIEEE 802.3af, IEEE 802.1x, IEEE 802.1pIEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1x, IEEE 802.3af
Quality of Service (QoS) supportYesYes
Security algorithmsDiffers802.1x RADIUS, HTTPS, SRTP, TLS256-bit AES, HTTPS, TLS, WPA2, WPA3
Supported network protocolsDiffersIPv4, TCP, UDP, ICMP, ARP, RTP, SRTP, RTCP-XR, 802.1x, static IP/DHCP IP assignment, IEEE 802.1p/Q, QoS/ToS, HTTP/HTTPS/DHCP, NTP, FTP/TFTP, CDP/LLDP VLAN configuration, LDAPIPv4/IPv6, SIP v1 (RFC2543), v2 (RFC3261), UDP/TCP/DNS-SRV (RFC 3263)
VoIP protocolsKnown for oneSIP – RFC 3261, SDP – RFC 2327, SIP over TCP/UDP/TLS, DNS_SRV (redundancy), digest authentication, PRACK, early media, SIP subscribe notify, BLF (busy lamp field), presence, MWI (message waiting indication)Unknown — not stated by the source
Ports & interfaces1 differ
Cable lock slotKnown for oneYesUnknown — not stated by the source
DC-in jackKnown for oneYesUnknown — not stated by the source
Ethernet LAN (RJ-45) ports22
RJ-9 ports quantityDiffers12
WAN connection typeKnown for oneRJ-45Unknown — not stated by the source
USB 2.0 ports quantityKnown for oneUnknown — not stated by the source2
Certificatesidentical
Compliance certificatesKnown for oneFederal Communications Commission (FCC), ICES, UL, CE, CB, cTUVus, RCM, KC, CCC, EAC, Industry Canada (IC), VCCI, BSMI, TAAUnknown — not stated by the source
Poweridentical
Power over Ethernet (PoE)Known for oneYesUnknown — not stated by the source
Power consumption (typical)Known for oneUnknown — not stated by the source2.2 W
Operational conditions1 differ
Operating temperature (T-T)Differs0 - 40 °C-10 - 50 °C
Storage temperature (T-T)Known for one-20 - 70 °CUnknown — not stated by the source
Operating relative humidity (H-H)Known for oneUnknown — not stated by the source10 - 95%
Weight & dimensions7 differ
WidthDiffers210.4 mm212 mm
DepthDiffers90.9 mm189 mm
HeightDiffers212.2 mm175 mm
WeightKnown for one984 gUnknown — not stated by the source
Package widthDiffers244 mm627 mm
Package depthDiffers320 mm256 mm
Package heightDiffers90 mm235 mm
Package weightDiffers1.46 kg63 kg
Packaging contentidentical
Cables includedKnown for oneLAN (RJ-45)Unknown — not stated by the source
Ethernet cableKnown for oneYesUnknown — not stated by the source
ManualKnown for oneYesUnknown — not stated by the source
Number of handles included1 pc(s)1 pc(s)
AC adapter includedKnown for oneUnknown — not stated by the sourceNo
Cameraidentical
Rear cameraKnown for oneUnknown — not stated by the sourceYes

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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