User`s guide

DPH-70 User’s Guide
6
Features
 Two-in-one device supports Internet and PSTN phone calls.
 Standards-based device, works with all Internet Service Provider (ISP), VoIP service
providers, and PC-based soft phones.
 Simple to set up, guided by voice prompts in your chosen language.
 The most suitable audio codec (G.723 or G.729A) will be automatically selected, 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 one-hand dialing method.
 Call transfer and last number redial.
 Continuous-connection option (DIAL UP) allows you to make multiple calls without
connecting to the Internet each time.
 Adjustable speaker volume control.
 Password protection for your valuable configuration information.
 Remote software update support.
1.1 Acronyms
One of the realities of the modern world, particularly when it comes to computers and the Internet,
is the widespread use of acronyms – groups of letters that refer to a product or service or a widely
used standard (protocol). Here’s a short list of acronyms that should help you, at least with this
manual and the DPH-70.
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 (RFC-1889)
SIP Session Initiation Protocol
TFTP Trivial File Transfer Protocol
1. Hook switch
2. Label inset
3. Dial-Up button
4. Shift button
5. Redial button
6. Speaker LED indicator and
one-touch dialing
7. LED Indicator for Dial-Up
and Shift
8. Number keypad