Features: Jabra Biz? 2300 QD Duo is a duo headset with QD (Quick Disconnect) plug that provides instant connectivity to a wide range of desk phone systems.
Specifications: Interfaces:
Telephone Interfaces Two (2) FXS ports
Network Interfaces One (1) 10/100 Mbps auto-sensing ethernet ports (RJ45)
LED Indicators POWER, INTERNET, PHONE1, PHONE2
Factory Reset Button Yes
Voice, Fax, Modem:
Telephony Features Caller ID display or block, call waiting, flash, blind or attended transfer, forward,
hold, do not disturb, 3-way conference
Voice Codecs G.711 with Annex I (PLC) and Annex II (VAD / CNG), G.723.1, G.729A/B, G.726, iLBC,
OPUS, dynamic jitter buffer, advanced line echo cancellation
Fax Over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax
Pass-through
Short / Long Haul Ring Load 2 REN: Up to 1 km on 24 AWG
Caller ID Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID
Disconnect Methods Busy Tone, Polarity Reversal / Wink, Loop Current
Signaling:
Network Protocols...
Specifications: The Plantronics 15729-05 Ultra soft replacement ear cushions (2 Pack) are designed to fit the Plantronics Supra (H51, H51N, H61, H61N) and Encore (H91, H91N, H101, H101N) headsets. Just another accessory in the Plantronics selection of Genuine Replacement Parts.