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 (on)
Comparison of 425HD, SIP T42U
80 specifications
Design2 differ
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
Message-waiting indicator (MWI)Known for oneYesUnknown — not stated by the source
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
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 LAN data ratesKnown for one10,100,1000 Mbit/sUnknown — not stated by the source
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
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
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
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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