Zoom X5V - Manual (Page 37)

Chapter 2: Voice Over IP Settings 37
SIP Registration
Interval Time (measured in seconds) between
registration requests to the VoIP service.
Default is 30.
Authentication
Method Security authentication method that your
VoIP service provider uses. Default is MD5
(Message Digest 5), RSA-sanctioned
cryptographic algorithm.
Local SIP Port The port that the X5v uses, vs. the SIP port
that the service provider’s equipment uses.
Default is 5060.
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.
Codec Preferences You can prioritize the codecs
(COde/DECode) to use from 1 to 3. First
priority default is G.711u (North America
best voice quality). Other choices are G711a
(outside of North America) and G729 (uses
less bandwidth).
2.3 Call Forwarding and Call
Waiting
The Supplementary Services page displays the X5v’s VoIP call
management features such as call forwarding and call waiting. Click
its button on the bottom of the Voice Over IP page.
Important: The X5v’s call forward capabilities are displayed on
this page. However, to activate these functions, you must enter
the X5v’s VoIP call management commands using your telephone
keypad. The section immediately following the table, Activating
Call Management Features, explains how to do this.