Chapter 2: Voice Over IP Settings
39
Setting
Meaning
SIP Port
IP port of your VoIP service provider’s SIP
Domain/Realm. Default is 5060.
SIP Proxy Port
IP port of your VoIP service provider’s SIP
proxy server. Default is 5060.
Outbound Proxy Port
IP port of your VoIP service provider’s
outbound proxy server. Default is 5060.
Authentication
Method
Security authentication method that your
VoIP service provider uses. Default is MD5
(Message Digest 5), RSA-sanctioned
cryptographic algorithm.
RTP Media Port
Base IP port that the X5v uses for RTP
(Real-Time Transport Protocol, an Internet
protocol for transmitting data such as audio
and video in real time). Default is 5000.
Select Ring and Tone
by Country/Region
Drop-down list of countries and regions. For
each country, there are two choices:
Standard and VoIP. The VoIP choice
provides rings and tones that are different
from conventional telephone service. If none
of the choices seems appropriate, use
ITU/Europe. You can also customize the
settings by selecting
Add/Edit Country
.
Codec Preferences
You can prioritize the codecs
(COde/DECode) from 1 to 3. The first priority
default is G.711u (North America best voice
quality). Other choices are G.711a (outside
of North America) and G.729. G.729 uses
less bandwidth and is a good choice if you
have a connection below 160kbps and/or
heavy data traffic. If you select G.729 for
priority 1, leave priorities 2 and 3 blank.
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