Grandstream Networks HandyTone-488 Cordless Telephone User Manual


 
HandyTone-488 User Manual Grandstream Networks, Inc.
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4 Product Overview
4.1 Key Features
Supports SIP 2.0(RFC 3261), TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP,
DNS, DHCP (both client and server), NTP, PPPoE, STUN, TFTP, etc.
Built-in router, NAT, Gateway and DMZ port forwarding
Supports call origination and termination from/to the PSTN network (via FXO port)
Powerful digital signal processing (DSP) to ensure superb audio quality; advanced
adaptive jitter control and packet loss concealment technology
Support various vocoders including G.711 (a-law and u-law), G.723.1 (5.3K/6.3K),
G.726 (40K/32K/24K/16K), as well as G.728, G.729A/B, and iLBC.
Support Caller ID/Name display or block, Hold, Call Waiting/Flash, Call Transfer, Call
Forward, in-band and out-of-band DTMF, Dial Plans, etc.
Support fax pass through
Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise
Generation), Line Echo Cancellation (G.168), and AGC (Automatic Gain Control)
Support standard encryption and authentication (DIGEST using MD5 and MD5-sess)
Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
Support automated NAT traversal without manual manipulation of firewall/NAT
Support device configuration via built-in IVR, Web browser or central configuration file
through TFTP or HTTP
Support firmware upgrade via TFTP or HTTP with encrypted configuration files.
Ultra compact (wallet size) and lightweight design, great companion for travelers
Compact, lightweight Universal Power adapter.