PHONE ADAPTER YEALINK GW3CN

Descrizione

Make/Receive both VoIP and PSTN calls.
Auto-detection and auto-switch to VoIP or PSTN calls.
Support 3 user accounts.
Phone rings for all incoming VoIP and PSTN calls.
VoIP or PSTN calls selected by phone key.
Support Caller ID/Name display or block.
Support call hold, call waiting, call forwarding, call transfer and IVR.
Dial plans, dial tone, busy tone, ring back tone, alert tone can be set flexibly.

Network Features:
Support SIP 2.0 (RFC3261) protocol.
Support NAT transverse: STUN mode.
IP Assignment: Static IP/ DHCP/ PPPoE
Auto-provision and upgrade via TFTP, FTP and HTTP.
Support in-band and out-of-band DTMF transfer.
Support standard encryption and authentication.

Voice Features:
VAD: Voice Activity Detection
CNG: Comfortable Noise Generator
LEC: Line Echo Canceller
PLC: Packet Loss Compensation
AJB: Adaptive Jitter Buffer

Supported Codes:
G 711: 64k bit/s (PCM)
G 726: 16k/24k/32k/40k bit/s (ADPCM)
G 729A: 8k bit/s (CS-ACELP)
G729B:adds VAD & CNG to G.729
G 723.1/iLBC
GSM