Technical Specifications
Protocol
+ IETF SIP (RFC3261)
Network Interface
+ RJ45 x 2, 10/100BaseT
LCD Display
+ 2 x 16 Characters
Key Pad
+ 25 Keys (Including Microsoft Response Point (RP) Button for One-touch Access to Voice-activated Commands)
Call Features
+ Call Hold
+ Call Mute
+ Call Retriever
+ Call Transfer
+ Call Waiting
+ Call Forward (Busy / No Answer / Unconditional)
+ Caller ID Display
+ Anonymous Call
+ Anonymous Call Blocking
+ In-band DTMF / Out-of-band DTMF
+ (RFC 2833) / SIP INFO
+ Message Waiting Indicator
+ 3-way Conference
+ Redial
Codec
+ G.711μ-law
+ G.711a-law
+ G.729a/b
Phone Functions
+ Multi-user (4 SIP Accounts)
+ Speakerphone Communication
+ Pre-dial Before Sending
+ Handset / Speakerphone Volume Adjustment
+ Speed-dial (10 Records)
+ Phonebook (200 Records)
+ Call History (Incoming / Outgoing / Missed Calls)
Security
+ HTTP 1.1 Basic/Digest Authentication for Web Setup
+ MD5 for SIP Authentication (RFC 2069/ RFC 2617)
Dial Methods
+ Direct IP Call without SIP Registration
+ Dial Registered Number via SIP Server
+ Dial URI from Phonebook / Speed-dial
Voice Quality
+ VAD (Voice Activity Detection)
+ CNG (Comfort Noise Generation)
+ AEC (Acoustic Echo Cancellation)
+ G.168
+ Jitter Buffer
QoS
+ ToS Field
+ IEEE 802.1q VLAN
Tone
+ DTMF
+ Ring Tone, 4 Selectable and 4 Editable Tones
+ Ring Back Tone (Local and Remote)
+ Dial Tone
+ Busy Tone
IP Assignment
+ Static IP
+ DHCP
+ PPPoE
NAT Traversal
+ UPnP
+ STUN
TCP/IP
+ IP/TCP/UDP/DHCP/RTP/RTCP/
+ ICMP/HTTP/NTP/TFTP/DNS
DVX-2000MS-5 / DVX-2000MS-10
DPH-125MS
IP Phone for VoiceCenter Phone System
