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HT-620

Product Characteristics Datasheet.PDF

Supports SIP 2.0（RFC3261）, TCP/UDP/IP, RTP/RTCP, HTTP,ICMP, ARP/RARP,DNS,DHCP, NTP, PPPoE, STUN,TFTP, etc
Builtin Router/NAT, gateway and DMZ port forwarding
Powerful digital signal processing (DSP) to ensure superb audio quality; advanced adaptive jitter control and packet loss concealment technology
Supports G.711 (alaw and u-law), G.723.1 (5.3K/6.3K), G.726 (40K/32K/24K/16K), G.729A/B and iLBC..
Supports standard voice features such as Caller ID Display or Block, Call Waiting, Hold, Transfer Forward, FLASH, in-band and out-of-band DTMF, Dial Plans.
Supports three way conference
Supports passing through and T.38 fax mode.
Supports silence suppression and check VAD (Voice Activity Detection), CNG (Comfort Noise Generation), Line Echo Cancellation (G.168), and AGC (Automatic Gain Control)
Supports the normal standards of encryption and certification.
Supports CALL Progress free enactment function
Supports the volume adjustment of gateway
Supports layer 2 (802.1Q VLAN, 802.1p) and layer 3 QoS (DiffServ, ToS)
Supports auto-crossing firewall (NAT) but without changeable to setting.
Supports configuration files by inside IVR equipment, Web browser, or TFTP and HTTP Central Server ;
Supports SIP encrypts mode, avoid force-out
Supports upgrading and encryption to the configuration files by TFTP or HTTP;
Microminiaturize and legerity design (size as a wallet), convenience for carrying.

Technical parameter:

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