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Codec
G.711: 64k bit/s (PCM)
G.723.1: 6.3k / 5.3k bit/s
G.726: 16k / 24k / 32k / 40k bit/s (ADPCM)
G.729A: 8k bit/s (CS-ACELP)
G.729B: adds VAD & CNG to G.729
Voice
VAD: Voice activity detection
CNG: Comfortable noise generator
LEC: Line echo canceller
Packet Loss Compensation
Adaptive Jitter Buffer
DTMF Function
In-Band DTMF
Out-of Band DTMF
SIP Info
QoS ToS field
NAT Traversal STUN
Configuration
Web Browser
Keypad
Power DC12V, 1.0A
Operational
Temperature
0 to 40¢C