Technical Specifications - D-Link VoiceCenter DPH-125MS User Manual

Appendix C - Technical Specifications
Protocol
IETF SIP (RFC3261)
Network Interface
RJ45 x 2, 10/100BaseT
LCD Display
2 x 16 characters
Key Pad
25 Keys
Call Features
• Call Hold
• Call Mute
• Call Retrieve
• 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
• (RFC2833) / SIP INFO
• Message Waiting Indicator
• 3-way Conference
• Redial
Codec
• G711u-law
• G711a-law
• G729a/b
D-Link DPH-15MS User Manual

Technical Specifications

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)
• G168
• Jitter buffer
QoS
• ToS field
• IEEE 802.1q VLAN
5