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HP OEM Poly VVX 250 4-Line VoIP Phone, Color LCD, HD Voice, Acoustic Fence Noise Reduction, Dual Gigabit Ethernet, USB Port, PoE, SIP Support, ENERGY STAR, Antimicrobial Surface- Brand: HP
- Type: VoIP Phones
- Standards: IEEE 802.3
- Ports: 2 x RJ45, 1 USB
- Model #: 002200-48820-025

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ENGENIUS DURAF-PRO-HC DURAFON PRO HANDSET/CHARGER- Type: Handset
- Specifications: Frequency: 902-928 MHz
RF Power: Peak - 708 mW, Average - 76 mW
Channel Spacing: 200 kHz
Number of Channels: 128
Modulation: MSK
Multiple Access: Frequency Hopping TDMA
Frequency Hopping Rate: 100 per second
TDMA Frame Length: 10 ms
Number of Slots/Frame: 8
Number of Users/Carrer: 4
Receiver Sensitivity: <-108 dBm (@BER 0.01)
Antenna Connector: Non-Standard
Antenna Gain: 2 dBi (Long) ; 0.5 dBi (Short)
Speech Coding: 8 kbps G.729A
Transmission Data Rate: 170.678 kbps
User Data Rate: 128 kbps duplex
Duplex: Time Division Duplex (TDD)
Voice Quality: TIA/EIA-470B
No. of System ID: 65,536
Auto-Attendant Coding: 8 kbps G.729
Battery Capacity: 3.7v, 1700mAh Li-ion Battery
Charger Current: 500 mA
Charge Time: 4 hours (from empty)
- Model #: DURAFONPROHC