ZyXEL Communications LTE3316-M604, Руководство пользователя

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LTE3316 Series User’s Guide
134
C
HAPTER
20
Voice Call
20.1 Overview
4G only supports all-IP-based packet-switched telephony services. When Voice service is enabled, the
Zyxel Device supports Circuit Switched FallBack (CSFB) to deliver/receive circuit-switched voice calls
and text messages via a 3G mobile network and then goes back to the 4G LTE network to transmit data
packets.
With the voice service, users do not need a SIP account and SIP server to make phone calls over the
Internet.
20.1.1 What You Can Do in this Chapter
These screens allow you to configure your Zyxel Device to make phone calls over the Internet and your
regular phone line, and to set up the phone you connect to the Zyxel Device.
• Use the General screen to enable voice calls on the Zyxel Device ( Section 20.2 on page 134 ).
• Use the Call Conf. screen to maintain rules for handling incoming calls ( Section 20.3 on page 135 ).
20.2 General Settings
Use this screen to enable voice service on the Zyxel Device. To access this screen, click Configuration >
Application > Voice Call > General .
Figure 76 Configuration > Application > Voice Call > General