Huawei HG659, User Manual, Page: 14 / 30

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IP Telephony
Introduction to IP Telephony
IP telephony, namely voice over Internet Protocol (VoIP), is also called broadband telephony or
Internet telephony. It utilizes Internet Protocol (IP) network technologies to implement voice
communication. During a VoIP call, voice signals are digitized, encoded, packetized, and transmitted
as packets over a network. On the receiving side, the packets are then decoded, and digital signals
are converted to reproduce the original voice streams, which can be heard by the called party. Different
from traditional PSTN calls, VoIP calls are transported over IP networks, meaning voice streams are
transmitted over users' existing broadband Internet. This makes full use of broadband resources.
Configuring VoIP
The HG659 supports VoIP. You can place VoIP calls after your phone is connected to the Phone port
on the HG659.
To use the HG659 to place VoIP calls, ask your network service provider to activate VoIP services for
you. By default, your network service provider will have all related parameters, such as the VoIP
account and address, set for you. You will not need to configure any settings to place VoIP calls.
To configure voice services, do as follows:
1.
Configure a VoIP provider.
a) Choose Telephony > VoIP to display the VoIP provider page.
b) Click New VoIP provider .
c) Enter the VoIP provider name provided by the service provider.
d) Enter the IP address or name of the SIP registrar server provided by the service provider
in the Primary registrar text box.
e) Enter the port number of the SIP registrar server provided by the service provider in the
primary registrar Port text box. If the service provider does not provide the port number,
the default value should be used.
f) Enter the IP address or name of the SIP proxy server provided by the service provider in
the Primary proxy text box.
g) Enter the port number of the SIP proxy server provided by the service provider in the
primary proxy Port text box.
h) Enter the home domain name of the SIP user in the SIP domain box.
i) Click Save to save the settings.
2.
Configure a VoIP number.
a) Choose Telephony > VoIP > VoIP Numbers to display the VoIP configuration page.
b) Select the VoIP provider name from the drop-down list box.
c) Click
New number .
d) Enter the SIP phone number.
e) Enter the SIP user name and password.
f) Click
Save to save the settings.