D-Link DPH-128MS manual Phone Features, Call Features, Voice Codec, Advance Voice Quality Feature

DPH-128MS

VoiceCenter™ Multiline IP Phone

Software Specifications

Phone Features	+ Multi-user (up to 4 SIP accounts)	+ One-Touch Dialing (up to 11 entries)
	+ Speed Dialing (up to 10 entries)	+ Phone Book (up to 200 contact names and phone numbers)
	+ Full Duplex Speaker Phone	+ Pre-dialing before sending
	+ Ringer, speaker, handset and headset volume settings	+ Caller ID
	+ Day/Time display	+ Call timer display
	+ 9 Selective Ring tones	+ Incoming call Indicator
	+ Password control for Configuration	+ MP3 Ringer
	+ Internet Radio
Call Features	+ Call Hold/Resume	+ Call Mute
	+ Call Transfer (Blind, Attend & Early Attended Transfer)	+ Call Forward (Busy, No answer, Unconditional)
	+ Call Waiting & Indication	+ Three Way Conferences
	+ Anonymous Call / Rejection	+ Message Waiting Indication
	+ Do Not Disturb	+ Redial / Last Number Redial
	+ Auto Answer	+ Call Park/Retrieve
	+ Call Pickup
Voice Codec	+ G.711a/u (64kbps)	+ G.729a/b (8kbps)
Advance Voice Quality Feature	+ Silence Suppression	+ Acoustic Echo Cancellation (G.167)
	+ Voice Activation Detection (VAD)	+ Comfort Noise Generation
	+ Jitter Buffer	+ DTMF Transmitter (SIP info, Transparent, RTP 2833 relay)
	+ Packet Lost Concealment (PLC)
Signal, Media & Network Protocols	+ SIP RFC 3261	+ SDP RFC 3266
	+ RTP RFC 1889	+ IP assignment: DHCP, Static IP
	+ STUN, UPnP & static port mapping (for NAT traversal)	+ SNTP
	+ DNS & DNS SRV	+ TFTP/FTP/HTTP for Auto Provision
	+ IP/TCP/UDP/ARP/ICMP
Network Capability	+ QoS: IEEE 802.1Q & IEEE 802.1p Compliant	+ DiffServ (DSCP)/ToS
	+ Full range VLAN ID Support	+ Class of Service Support by VLAN Tag
User Interface and Network	+ LCD/Keypad UI	+ HTTP (WEB) UI
Management	+ FTP/TFTP/HTTP for Firmware remote update	+ APS auto-provisioning for firmware and profile upgrade
	+Emergency upgrade if firmware is corrupted