Product comparison · 2 ip phones

AudioCodes 425HD TAA IP-Phone PoE GbE black vs HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply

28specifications compared
6differ
22identical
47known for one product only

Key differences

Display: LCD on the AudioCodes 425HD TAA IP-Phone PoE GbE black, LED on the HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply. Display diagonal: 8.89 cm (3.5") on the AudioCodes 425HD TAA IP-Phone PoE GbE black, 7.11 cm (2.8") on the HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply. Display resolution: 320 x 480 pixels on the AudioCodes 425HD TAA IP-Phone PoE GbE black, 320 x 240 pixels on the HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply. Security algorithms: 802.1x RADIUS, HTTPS, SRTP, TLS on the AudioCodes 425HD TAA IP-Phone PoE GbE black, 802.1x RADIUS, HTTPS on the HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply. Storage temperature (T-T): -20 - 70 °C on the AudioCodes 425HD TAA IP-Phone PoE GbE black, -40 - 70 °C on the HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply.

Display
- 425HD TAA IP-Phone PoE GbE black:LCD
- OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply:LED
Display diagonal
- 425HD TAA IP-Phone PoE GbE black:8.89 cm (3.5")
- OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply:7.11 cm (2.8")
Display resolution
- 425HD TAA IP-Phone PoE GbE black:320 x 480 pixels
- OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply:320 x 240 pixels
Storage temperature (T-T)
- 425HD TAA IP-Phone PoE GbE black:-20 - 70 °C
- OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply:-40 - 70 °C

Side by side

Differences highlightedShow differences only

Comparison of 425HD, OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply
75 specifications	A AudioCodes 425HD TAA IP-Phone PoE GbE black Model 425HD View product	B HP Poly OBi VVX 250 4-Line IP Phone and PoE-enabled with Power Supply View product
Performanceidentical
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
Call parkKnown for one	Yes	Unknown — not stated by the source
Call pick upKnown for one	Yes	Unknown — not stated by the source
Caller IDKnown for one	Yes	Unknown — not stated by the source
Full duplexKnown for one	Yes	Unknown — not stated by the source
Message-waiting indicator (MWI)Known for one	Yes	Unknown — not stated by the source
Distinctive ringKnown for one	Unknown — not stated by the source	Yes
Management featuresidentical
Volume controlKnown for one	Buttons	Unknown — not stated by the source
Number of programmable keysKnown for one	8	Unknown — not stated by the source
Display3 differ
DisplayDiffers	LCD	LED
Display diagonalDiffers	8.89 cm (3.5")	7.11 cm (2.8")
Display resolutionDiffers	320 x 480 pixels	320 x 240 pixels
Audio1 differ
Microphone muteKnown for one	Yes	Unknown — not stated by the source
Adaptive jitter buffersKnown 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 codecsDiffers	G.711, G.722, G.729, OPUS	G.711, G.722, G.722.1, G.729ab, OPUS, iLBC
Comfort noise generation (CNG)Known for one	Unknown — not stated by the source	Yes
Network1 differ
Wi-FiKnown for one	No	Unknown — not stated by the source
BluetoothKnown for one	No	Unknown — not stated by the source
Networking standardsKnown for one	IEEE 802.3af, IEEE 802.1x, IEEE 802.1p	Unknown — not stated by the source
Quality of Service (QoS) supportKnown for one	Yes	Unknown — not stated by the source
Security algorithmsDiffers	802.1x RADIUS, HTTPS, SRTP, TLS	802.1x RADIUS, HTTPS
Supported network protocolsKnown for one	IPv4, 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, LDAP	Unknown — not stated by the source
VoIP protocolsKnown for one	SIP – 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
SyslogKnown for one	Unknown — not stated by the source	Yes
Ports & interfacesidentical
Cable lock slotKnown for one	Yes	Unknown — not stated by the source
DC-in jackKnown for one	Yes	Unknown — not stated by the source
RJ-9 ports quantityKnown for one	1	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	1
Certificatesidentical
Compliance certificatesKnown for one	Federal Communications Commission (FCC), ICES, UL, CE, CB, cTUVus, RCM, KC, CCC, EAC, Industry Canada (IC), VCCI, BSMI, TAA	Unknown — not stated by the source
Sustainability certificatesKnown for one	Unknown — not stated by the source	ENERGY STAR
SafetyKnown for one	Unknown — not stated by the source	UL 60950-1/62368-1, CE Mark, CAN/CSA C22.2 No 60950-1/62368-1-1, EN 60950-1/62368-1, IEC 60950-1/62368-1, AS/NZS 60950-1
CertificationKnown for one	Unknown — not stated by the source	FCC Part 15 (CFR 47) Class B ICES-003 Class B EN55032 Class B CISPR32 Class B VCCI Class B EN55024 EN61000-3-2; EN61000-3-3 NZ Telepermit Korea KCC3 UAE TRA Russia CU3 Brazil ANATEL3 Australia RCM South Africa ICASA3 Saudi Arabia CITC China CCC3 RoHS Complian TAA
Poweridentical
AC adapter output voltageKnown for one	Unknown — not stated by the source	5 V
AC adapter output currentKnown for one	Unknown — not stated by the source	3 A
Operational conditions1 differ
Storage temperature (T-T)Differs	-20 - 70 °C	-40 - 70 °C
Operating relative humidity (H-H)Known for one	Unknown — not stated by the source	5 - 95%
Weight & dimensionsidentical
WidthKnown for one	210.4 mm	Unknown — not stated by the source
DepthKnown for one	90.9 mm	Unknown — not stated by the source
HeightKnown for one	212.2 mm	Unknown — not stated by the source
WeightKnown for one	984 g	Unknown — not stated by the source
Package widthKnown for one	244 mm	Unknown — not stated by the source
Package depthKnown for one	320 mm	Unknown — not stated by the source
Package heightKnown for one	90 mm	Unknown — not stated by the source
Package weightKnown for one	1.46 kg	Unknown — not stated by the source
Packaging contentidentical
Cables includedKnown for one	LAN (RJ-45)	Unknown — not stated by the source
Ethernet cableKnown 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	Yes
Technical detailsidentical
Warranty periodKnown for one	Unknown — not stated by the source	1 year(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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