D-Link DPH-540 Datasheet download pdf (Page 9)

DPH-400S Series IP Phone Specifications

 G.726

 G.729A/B(8 k bps) (*Optional)

 G.723.1 (*Optional)

 BroadVoice16/32 (*Optional)

 Advance Voice Quality Feature

 Silence Suppression

 Acoustic Echo Cancellation (G.167)

 Voice Activation Detection(VAD)

 Comfort Noise Generation

 Dynamic Jitter Buffer

 DTMF Transmitter(SIP info, Transparent, RTC 2833 relay)

 Packet Lost Concealment (PLC)

 Signal, Media & Network Protocols

 SIP RFC 3261

 SDP RFC 3266

 RTP/RTCP

 IP address: DHCP, Static IP and PPPoE

 STUN (for NAT traversal)

 SNTP

 DNS

 Supplementary Call Feature

 Call Hold

 Call Transfer (Blind and Attend Transfer)

 Call Forward (Busy, No answer, Unconditional)

 Call Waiting

 Call Waiting Indication

 Three Way Conferences

 Message Waiting Indication

 Do Not Disturb

 Auto Answer

 Network Capability

 QoS: IEEE 802.1Q & IEEE 802.1p Compliant

 DiffServ (DSCP)

 Full range VLAN ID Support,

 Class of Service Support by VLAN Tag

 User Interface and Network Management

 LCD/Keypad UI in English version

 HTTP(WEB) UI in English version

 SNMP V2

 FTP/TFTP(Trivial File Transfer Protocol) for Firmware remote update

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D-Link DPH-540 Datasheet Page 9