ZyXEL Communications ISDN Terminal Adapter Omni.Net Lite, Руководство пользователя

Страница: 46 / 84

Omni.Net Lite User’s Guide
45 Chapter 2 Using the Utility
2.11.3 Dialing Method
There are two ways to send a message containing the phone number: EN-BLOC sending and
OVERLAP sending .
In En-Bloc mode, the complete phone number is sent in the first signaling message. Users
enter all digits of the phone number before a timeout period expires (the call times out if there
is inactivity for more than four seconds) or press “#” to indicate the complete phone number
has been entered.
OVERLAP sending is similar to what the traditional PSTN (Public-Switched Telephone
Network) telephone system uses. OVERLAP sending means sending some phone digits in
the first signaling message and the rest in subsequent signaling message. Users enter the phone
number after a dial tone. The ISDN network is aware of the completion of the phone number
automatically. You can not enter the sub-address when using overlap sending.
OVERLAP sending is usually used as the default for voice calls. For data calls, only EN-
BLOC sending is used.
2.11.4 Configuring Local DN and Options
Click Local DN and Options under Analog Port to display the screen as shown next.
Figure 17 Analog Port: Local DN and Options