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Product comparison · 2 ip phones

HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply vs Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi

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  • 25specifications compared
  • 12differ
  • 13identical
  • 36known for one product only

Key differences

The HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply has 4 lines more lines quantity than the Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi (12 lines vs 8 lines). The HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply has 15.1 mm more width than the Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi (240 mm vs 224.9 mm). The Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi has 149.2 mm more depth than the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply (206.2 mm vs 57 mm). Product colour: Black on the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply, Grey on the Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi. Display: LED on the HP Poly OBi VVX 450 12-Line IP Phone and PoE-enabled with Power Supply, LCD on the Yealink SIP-T44U IP phone Grey 8 lines LCD Wi-Fi.

  • Product colour
    • Black
    • Grey
  • Lines quantity
    • 12 lines
    • 8 lines
  • Display
    • LED
    • LCD
  • Display diagonal
    • 10.9 cm (4.3")
    • 7.11 cm (2.8")
  • Display resolution
    • 480 x 272 pixels
    • 320 x 240 pixels
  • Ethernet LAN data rates
    • 10,100,1000 Mbit/s
    • 1000 Mbit/s
  • Operating relative humidity (H-H)
    • 5 - 95%
    • 5 - 90%
  • Operating temperature (T-T)
    • 0 - 40 °C
    • -10 - 45 °C

Side by side

Differences highlightedShow differences only
61 specifications
A

HP Poly

OBi VVX 450 12-Line IP Phone and PoE-enabled with Power SupplyView product
B

Yealink

SIP-T44U IP phone Grey 8 lines LCD Wi-Fi

Model SIP-T44U

View product
Design1 differ
Product typeIP PhoneIP Phone
Handset typeKnown for oneWired handset
Product colourDiffersBlackGrey
Wall mountableKnown for oneYes
Phone features1 differ
Lines quantityDiffers12 lines8 lines
Call forwardingYesYes
Call holdYesYes
Call transferKnown for oneYes
Call waitingYesYes
Conference callYesYes
Distinctive ringKnown for oneYes
Do not disturb functionKnown for oneYes
RedialingKnown for oneYes
Speed diallingKnown for oneYes
Anonymous callKnown for oneYes
Caller IDKnown for oneYes
Direct callKnown for oneYes
Full duplexKnown for oneYes
Number of VoIP accountsKnown for one12
Phonebook capacityKnown for one1000 entries
SIP registrar serverKnown for oneYes
Display3 differ
DisplayDiffersLEDLCD
Display diagonalDiffers10.9 cm (4.3")7.11 cm (2.8")
Display resolutionDiffers480 x 272 pixels320 x 240 pixels
TouchscreenNoNo
Backlight displayKnown for oneYes
Audioidentical
SpeakerphoneYesYes
Comfort noise generation (CNG)Known for oneYes
Voice activity detectionKnown for oneYes
Voice codecsKnown for oneG.711, G.722, G.722.1, G.729ab, OPUS, iLBC
Microphone muteKnown for oneYes
Network1 differ
Ethernet LANYesYes
Ethernet LAN data ratesDiffers10,100,1000 Mbit/s1000 Mbit/s
Ethernet LAN interface typeGigabit EthernetGigabit Ethernet
Quality of Service (QoS) supportKnown for oneYes
Security algorithmsKnown for one802.1x RADIUS, HTTPS, TLS
SyslogKnown for oneYes
Wi-FiKnown for oneYes
Technical detailsidentical
Warranty periodKnown for one1 year(s)
Ports & interfacesidentical
USB 2.0 ports quantity22
Ethernet LAN (RJ-45) ports22
RJ-9 ports quantityKnown for one2
Certificatesidentical
Sustainability certificatesKnown for oneENERGY STAR
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 60950-1
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 TAA
Poweridentical
Power over Ethernet (PoE)YesYes
AC adapter output voltageKnown for one5 V
AC adapter output currentKnown for one3 A
Operational conditions3 differ
Operating relative humidity (H-H)Differs5 - 95%5 - 90%
Operating temperature (T-T)Differs0 - 40 °C-10 - 45 °C
Storage temperature (T-T)Differs-40 - 70 °C-30 - 70 °C
Weight & dimensions3 differ
WidthDiffers240 mm224.9 mm
DepthDiffers57 mm206.2 mm
HeightDiffers230 mm174.9 mm
WeightKnown for one1.04 kg
Packaging contentidentical
AC adapter includedKnown for oneYes
Number of handles included1 pc(s)1 pc(s)
Ethernet cableKnown for oneYes
HandsetKnown for oneYes
Quick start guideKnown for oneYes
Stand includedKnown for oneYes

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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