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Features
Two-in-one device supports Internet and PSTN phone calls.
Standard based device, works with all Internet Service Provider (ISP), VoIP service
providers and PC based soft phones.
Easy to use set-up guided by voice prompts in local language.
Intelligent selection of codec (G.723 or G.729A) based on Internet connection speed.
Excellent voice quality and low end-to-end delay using low latency adaptive jitter buffer,
silence suppression and comfort noise generation techniques.
User-friendly hands-free dialing method.
Make multiple calls without connecting to the Internet each time.
Mute, Call transfer, last number redial and adjustable volume control.
Password protection to your valuable configuration information.
Remote software update support.
Phone lock, Speed dial
Speakerphone feature for hands-free communication.
1.1 Acronyms
LED
Light Emitting Diode
IP
Internet Protocol
ISP
Internet Service Provider
PPP
Point-to-Point Protocol
PSTN
Public Switched Telephone Network
RTP
Real Time Protocol
SIP
Session Initiation Protocol
TFTP
Trivial File Transfer Protocol
VOIP
Voice Over Internet Protocol, same as Internet Telephony
1.2 Definitions
Idle State: DPH-70E is said to be in idle state when the speaker is off, LEDs are off and handset
is on Hook.
Configuration state: DPH-70E goes to configuration state to edit and verify the configuration
information.
Receive state: DPH-70E goes to this state to receive calls from other phones. In this state,
phone is always connected to Internet.
Speaker Mode: You can dial a phone number in hands free mode and listen to call progress
messages and have conversation with the other party.
Handset Mode: You can lift the handset any time to listen. If the speaker is on while lifting, it is
turned off automatically.
Locked State: In this state you can only receive calls. No other features of DPH-70E can be used
in this state.
DPH-70E User's Guide
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