Product comparison · 2 ip phones

HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled vs Yealink T33P IP phone Grey 4 lines

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  • 29specifications compared
  • 13differ
  • 16identical
  • 54known for one product only

Key differences

The HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled has 8 lines more lines quantity than the Yealink T33P IP phone Grey 4 lines (12 lines vs 4 lines). The Yealink T33P IP phone Grey 4 lines has 5 - 95% more operating relative humidity (H-H) than the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled (10 - 95% vs 5 - 95%). The HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled has 28 mm more width than the Yealink T33P IP phone Grey 4 lines (240 mm vs 212 mm). Product colour: Black on the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled, Grey on the Yealink T33P IP phone Grey 4 lines. Display diagonal: 10.9 cm (4.3") on the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled, 6.1 cm (2.4") on the Yealink T33P IP phone Grey 4 lines.

  • Product colour
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:Black
    • T33P IP phone Grey 4 lines:Grey
  • Lines quantity
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:12 lines
    • T33P IP phone Grey 4 lines:4 lines
  • Display diagonal
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:10.9 cm (4.3")
    • T33P IP phone Grey 4 lines:6.1 cm (2.4")
  • Display resolution
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:480 x 272 pixels
    • T33P IP phone Grey 4 lines:320 x 240 pixels
  • Ethernet LAN data rates
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:10,100,1000 Mbit/s
    • T33P IP phone Grey 4 lines:10,100 Mbit/s
  • Ethernet LAN interface type
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:Gigabit Ethernet
    • T33P IP phone Grey 4 lines:Fast Ethernet
  • Security algorithms
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:802.1x RADIUS, HTTPS, TLS
    • T33P IP phone Grey 4 lines:AES, HTTPS
  • Operating relative humidity (H-H)
    • OBi VVX 450 12-Line IP Phone and PoE-enabled:5 - 95%
    • T33P IP phone Grey 4 lines:10 - 95%

Side by side

Differences highlightedShow differences only (on)
Comparison of OBi VVX 450 12-Line IP Phone and PoE-enabled, T33P
83 specifications
Design1 differ
Product colourDiffersBlackGrey
MountingKnown for oneUnknown — not stated by the sourceDesk/Wall
Wall mountableKnown for oneUnknown — not stated by the sourceYes
Performanceidentical
Operating system installedKnown for oneUnknown — not stated by the sourceLinux
Phone features1 differ
Lines quantityDiffers12 lines4 lines
Answering machineKnown for oneUnknown — not stated by the sourceYes
Hot deskingKnown for oneUnknown — not stated by the sourceYes
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
Call parkKnown for oneUnknown — not stated by the sourceYes
Call pick upKnown for oneUnknown — not stated by the sourceYes
Call returnKnown for oneUnknown — not stated by the sourceYes
Caller IDKnown for oneUnknown — not stated by the sourceYes
Customizable wallpaperKnown for oneUnknown — not stated by the sourceYes
Direct callKnown for oneUnknown — not stated by the sourceYes
Emergency callKnown for oneUnknown — not stated by the sourceYes
Full duplexKnown for oneUnknown — not stated by the sourceYes
Message-waiting indicator (MWI)Known for oneUnknown — not stated by the sourceYes
Number of VoIP accountsKnown for oneUnknown — not stated by the source4
Phonebook capacityKnown for oneUnknown — not stated by the source1000 entries
Short Message Service (SMS)Known for oneUnknown — not stated by the sourceYes
Conference callKnown for oneYesUnknown — not stated by the source
Distinctive ringKnown for oneYesUnknown — not stated by the source
Management featuresidentical
Integrated voicemailKnown for oneUnknown — not stated by the sourceYes
Volume controlKnown for oneUnknown — not stated by the sourceButtons
Number of function keysKnown for oneUnknown — not stated by the source5
Number of programmable keysKnown for oneUnknown — not stated by the source4
Display2 differ
Display diagonalDiffers10.9 cm (4.3")6.1 cm (2.4")
Display resolutionDiffers480 x 272 pixels320 x 240 pixels
Backlight displayKnown for oneUnknown — not stated by the sourceYes
DisplayKnown for oneLEDUnknown — not stated by the source
Audio1 differ
Noise reductionKnown for oneUnknown — not stated by the sourceYes
Voice codecsDiffersG.711, G.722, G.722.1, G.729ab, OPUS, iLBCAGC, AJB, CNG, G.711a, G.711u, G.722, G.723.1, G.726, G.729, G.729A, PLC, VAD, iLBC
Comfort noise generation (CNG)Known for oneYesUnknown — not stated by the source
Voice activity detectionKnown for oneYesUnknown — not stated by the source
Network3 differ
Ethernet LAN data ratesDiffers10,100,1000 Mbit/s10,100 Mbit/s
Ethernet LAN interface typeDiffersGigabit EthernetFast Ethernet
Wi-FiKnown for oneUnknown — not stated by the sourceNo
BluetoothKnown for oneUnknown — not stated by the sourceNo
DHCP clientKnown for oneUnknown — not stated by the sourceYes
Security algorithmsDiffers802.1x RADIUS, HTTPS, TLSAES, HTTPS
SyslogKnown for oneYesUnknown — not stated by the source
Ports & interfacesidentical
RJ-9 ports quantityKnown for oneUnknown — not stated by the source1
USB 2.0 ports quantityKnown for one2Unknown — not stated by the source
Poweridentical
AC adapter input voltageKnown for oneUnknown — not stated by the source100 - 240 V
Input frequencyKnown for oneUnknown — not stated by the source50/60 Hz
Power consumption (typical)Known for oneUnknown — not stated by the source3 W
Power consumption (Power over Ethernet (PoE))Known for oneUnknown — not stated by the source5 W
AC adapter output voltageKnown for one5 VUnknown — not stated by the source
AC adapter output currentKnown for one3 AUnknown — not stated by the source
Operational conditions2 differ
Operating relative humidity (H-H)Differs5 - 95%10 - 95%
Operating temperature (T-T)Differs0 - 40 °C-10 - 50 °C
Storage temperature (T-T)Known for one-40 - 70 °CUnknown — not stated by the source
Weight & dimensions3 differ
WidthDiffers240 mm212 mm
DepthDiffers57 mm186 mm
HeightDiffers230 mm146 mm
WeightKnown for one1.04 kgUnknown — not stated by the source
Packaging contentidentical
Base stationKnown for oneUnknown — not stated by the sourceYes
Ethernet cableKnown for oneUnknown — not stated by the sourceYes
HandsetKnown for oneUnknown — not stated by the sourceYes
Quick start guideKnown for oneUnknown — not stated by the sourceYes
AC adapter includedKnown for oneYesUnknown — not stated by the source
Technical detailsidentical
Warranty periodKnown for one1 year(s)Unknown — not stated by the source
Certificatesidentical
Sustainability certificatesKnown for oneENERGY STARUnknown — not stated by the source
SafetyKnown for oneUL 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 60950-1Unknown — not stated by the source
CertificationKnown for oneFCC 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 TAAUnknown — not stated by the source

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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