ZyXEL Communications FMG3024-D10A ユーザーズマニュアル
Chapter 18 VoIP
FMG3024-D10A / FMG3025-D10A Series User’s Guide
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Each field is described in the following table.
18.7 Technical Reference
This section contains background material relevant to the VoIP screens.
18.7.1 VoIP
VoIP is the sending of voice signals over Internet Protocol. This allows you to make phone calls and
send faxes over the Internet at a fraction of the cost of using the traditional circuit-switched
telephone network. You can also use servers to run telephone service applications like PBX services
and voice mail. Internet Telephony Service Provider (ITSP) companies provide VoIP service.
send faxes over the Internet at a fraction of the cost of using the traditional circuit-switched
telephone network. You can also use servers to run telephone service applications like PBX services
and voice mail. Internet Telephony Service Provider (ITSP) companies provide VoIP service.
Circuit-switched telephone networks require 64 kilobits per second (Kbps) in each direction to
handle a telephone call. VoIP can use advanced voice coding techniques with compression to reduce
the required bandwidth.
handle a telephone call. VoIP can use advanced voice coding techniques with compression to reduce
the required bandwidth.
18.7.2 SIP
The Session Initiation Protocol (SIP) is an application-layer control (signaling) protocol that handles
the setting up, altering and tearing down of voice and multimedia sessions over the Internet.
the setting up, altering and tearing down of voice and multimedia sessions over the Internet.
Table 63
VoIP > Call Rule
LABEL
DESCRIPTION
Speed Dial
Use this section to create or edit speed-dial entries.
#
Select the speed-dial number you want to use for this phone number.
Number
Enter the SIP number you want the Device to call when you dial the speed-dial
number.
number.
Description
Enter a short description to identify the party you call when you dial the speed-
dial number. You can use up to 127 printable ASCII characters.
dial number. You can use up to 127 printable ASCII characters.
Add
Click this to use the information in the Speed Dial section to update the Speed
Dial Phone Book section.
Dial Phone Book section.
Phone Book
Use this section to look at all the speed-dial entries and to erase them.
#
This field displays the speed-dial number you should dial to use this entry.
Number
This field displays the SIP number the Device calls when you dial the speed-dial
number.
number.
Description
This field displays a short description of the party you call when you dial the
speed-dial number.
speed-dial number.
Modify
Use this field to edit or erase the speed-dial entry.
Click the Edit icon to copy the information for this speed-dial entry into the
Speed Dial section, where you can change it. Click Add when you finish editing
to change the configurations.
Speed Dial section, where you can change it. Click Add when you finish editing
to change the configurations.
Click the Delete icon to erase this speed-dial entry.
Clear
Click this to erase all the speed-dial entries.
Cancel
Click this to set every field in this screen to its last-saved value.