Product comparison · 2 ip phones

AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 vs Yealink SIP T42U

33specifications compared
18differ
15identical
53known for one product only

Key differences

The Yealink SIP T42U has 5 more programmable keys than the AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 (6 vs 1). The AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 has 13.9 mm more width than the Yealink SIP T42U (225.9 mm vs 212 mm). The AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 has 21.3 mm more depth than the Yealink SIP T42U (210.3 mm vs 189 mm). Only the AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 has integrated voicemail. Handset type: Wired handset on the AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6, Wireless handset on the Yealink SIP T42U.

Handset type
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:Wired handset
- SIP T42U:Wireless handset
Product colour
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:Black
- SIP T42U:Grey
Integrated voicemail
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:Yes
- SIP T42U:No
Number of programmable keys
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:1
- SIP T42U:6
Display
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:TFT
- SIP T42U:LCD
Display diagonal
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:12.7 cm (5")
- SIP T42U:6.86 cm (2.7")
Display resolution
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:1280 x 720 pixels
- SIP T42U:192 x 68 pixels
Operating temperature (T-T)
- Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6:0 - 40 °C
- SIP T42U:-10 - 50 °C

Side by side

Differences highlightedShow differences only

Comparison of C456HD, SIP T42U
86 specifications	A AudioCodes Teams C456HD TAA IP-Phone PoE GbE black with integrated BT and Dual Band Wi-Fi 6 Model C456HD View product	B Yealink SIP T42U View product
Design2 differ
Handset typeDiffers	Wired handset	Wireless handset
Product colourDiffers	Black	Grey
Device lockKnown for one	Unknown — not stated by the source	Yes
MountingKnown for one	Unknown — not stated by the source	Desk/Wall
Performanceidentical
Operating system installedKnown for one	Android	Unknown — not stated by the source
Operating system versionKnown for one	13	Unknown — not stated by the source
Dual-Tone Multi-Frequency (DTMF) modesKnown for one	SIP info	Unknown — not stated by the source
Phone featuresidentical
Answering machineKnown for one	Yes	Unknown — not stated by the source
Message-waiting indicator (MWI)Known for one	Yes	Unknown — not stated by the source
Anonymous callKnown for one	Unknown — not stated by the source	Yes
Anonymous call rejectionKnown for one	Unknown — not stated by the source	Yes
Call forwardingKnown for one	Unknown — not stated by the source	Yes
Call historyKnown for one	Unknown — not stated by the source	Yes
Call parkKnown for one	Unknown — not stated by the source	Yes
Call pick upKnown for one	Unknown — not stated by the source	Yes
Call waitingKnown for one	Unknown — not stated by the source	Yes
Conference callKnown for one	Unknown — not stated by the source	Yes
Direct callKnown for one	Unknown — not stated by the source	Yes
Distinctive ringKnown for one	Unknown — not stated by the source	Yes
Do not disturb functionKnown for one	Unknown — not stated by the source	Yes
Number of VoIP accountsKnown for one	Unknown — not stated by the source	12
Phonebook capacityKnown for one	Unknown — not stated by the source	1000 entries
Management features2 differ
Integrated voicemailDiffers	Yes	No
Volume controlKnown for one	Buttons	Unknown — not stated by the source
Number of programmable keysDiffers	1	6
Number of function keysKnown for one	Unknown — not stated by the source	5
Display3 differ
DisplayDiffers	TFT	LCD
Display diagonalDiffers	12.7 cm (5")	6.86 cm (2.7")
Display resolutionDiffers	1280 x 720 pixels	192 x 68 pixels
TouchscreenKnown for one	Yes	Unknown — not stated by the source
Audioidentical
SpeakerphoneKnown for one	Yes	Unknown — not stated by the source
Microphone muteKnown for one	Yes	Unknown — not stated by the source
Adaptive jitter buffersKnown for one	Yes	Unknown — not stated by the source
Comfort noise generation (CNG)Known for one	Yes	Unknown — not stated by the source
Echo cancellationKnown for one	Yes	Unknown — not stated by the source
Packet loss concealment (PLC)Known for one	Yes	Unknown — not stated by the source
Voice activity detectionKnown for one	Yes	Unknown — not stated by the source
Voice codecsKnown for one	G.711, G.722, G.729, Silk	Unknown — not stated by the source
Network3 differ
Ethernet LAN data ratesKnown for one	10,100,1000 Mbit/s	Unknown — not stated by the source
Wi-Fi standardsKnown for one	802.11a, 802.11b, 802.11g, Wi-Fi 4 (802.11n), Wi-Fi 5 (802.11ac), Wi-Fi 6 (802.11ax)	Unknown — not stated by the source
Networking standardsDiffers	IEEE 802.3af	IEEE 802.11a, IEEE 802.11b, IEEE 802.11g, IEEE 802.11n, IEEE 802.1x, IEEE 802.3af
Security algorithmsDiffers	HTTPS, SRTP, TLS	256-bit AES, HTTPS, TLS, WPA2, WPA3
Supported network protocolsDiffers	UDP/TCP, NTP, DNS/SRV	IPv4/IPv6, SIP v1 (RFC2543), v2 (RFC3261), UDP/TCP/DNS-SRV (RFC 3263)
Ports & interfacesidentical
Headset connectivityKnown for one	USB	Unknown — not stated by the source
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
WAN connection typeKnown for one	RJ-45	Unknown — not stated by the source
USB 2.0 ports quantityKnown for one	Unknown — not stated by the source	2
RJ-9 ports quantityKnown for one	Unknown — not stated by the source	2
Certificatesidentical
Certified for Microsoft TeamsKnown for one	Yes	Unknown — not stated by the source
Compliance certificatesKnown for one	TAA	Unknown — not stated by the source
Poweridentical
Power over Ethernet (PoE)Known for one	Yes	Unknown — not stated by the source
Power consumption (typical)Known for one	Unknown — not stated by the source	2.2 W
Operational conditions1 differ
Operating temperature (T-T)Differs	0 - 40 °C	-10 - 50 °C
Storage temperature (T-T)Known for one	-20 - 70 °C	Unknown — not stated by the source
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	10 - 95%
Weight & dimensions7 differ
WidthDiffers	225.9 mm	212 mm
DepthDiffers	210.3 mm	189 mm
HeightDiffers	92.6 mm	175 mm
WeightKnown for one	1.11 kg	Unknown — not stated by the source
Package widthDiffers	323 mm	627 mm
Package depthDiffers	238 mm	256 mm
Package heightDiffers	86 mm	235 mm
Package weightDiffers	1.5 kg	63 kg
Packaging contentidentical
Mounting kitKnown for one	Yes	Unknown — not stated by the source
Ethernet cableKnown for one	Yes	Unknown — not stated by the source
HandsetKnown for one	Yes	Unknown — not stated by the source
Headset includedKnown for one	Yes	Unknown — not stated by the source
ManualKnown for one	Yes	Unknown — not stated by the source
AC adapter includedKnown for one	Unknown — not stated by the source	No
Cameraidentical
Rear cameraKnown for one	Unknown — not stated by the source	Yes

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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