| Telephony interfaces
Four (4) RJ11 FXS ports
Network interfaces
Two (2) 10/100/1000Mbps RJ45 ports
LED indicators
POWER SUPPLY, NET1, NET2, TELEPHONE 1, TELEPHONE 2, TELEPHONE 3, TELEPHONE 4
Factory reset button
Yes
Telephony functions
Caller ID display and lock, Call waiting, flash, blind or
accompanied call transfer, Forwarding, Hold, Do not
disturb mode, 3-way conference
Speech codecs
G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.722, G.723.1, G.729A/B,
G726-32, iLBC, OPUS, Dynamic reference frequency jitter buffer,
advanced echo line compensation
Fax over IP
T.38 acc. Group 3 fax transmission up to 14.4kpbs and auto-switching to G.711
for Fax | |
