User`s guide
DPH-70 User’s Guide
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1 Overview
The DPH-70 is a two-in-one phone, allowing both Internet (IP) based calls, and normal PSTN
(Public Switched Telephone Network) calls. As an IP telephone, the DPH-70 operates under the
Session Initiation Protocol (SIP) or the H.323 protocol, allowing you to make inexpensive long
distance (STD and ISD) calls on a dial-up Internet connection.
With the look, feel, and ease of use of any normal phone, the DPH-70 toggles between Internet
and PSTN modes with one-button convenience. Use the DIAL UP button to initiate IP calls; de-
activate the DIAL UP function to revert to PSTN mode.
Once the DPH-70 has been configured, it works like any normal phone. There is no need to re-
configure unless there is a change in Internet access or calling card information.
The DPH-70 is a standards-based device and works with any Internet Service Provider (ISP) and
VoIP (Internet telephone) service provider. It plays user-friendly status messages and
configuration messages in a language of your choice.
DPH-70 has a user-friendly dialing option whereby you dial a number just once. The phone will try
many times and ring back when the called party answers the call.
DPH-70 software can be upgraded over the Internet for new features and functions.