ZyXEL VMG4927-B50A User Guide - Page 210

CHAPTER 21 Voice 21.1 Overview Use this chapter to: • Connect an analog phone to the VMG. • Configure settings such as speed dial. • Configure network settings to optimize the voice quality of your phone calls. 21.1.1 What You Can Do in this Chapter These screens allow you to configure your VMG to make phone calls over the Internet and your regular phone line, and to set up the phones you connect to the VMG. • Use the SIP Account screen (Section 21.3 on page 211) to set up information about your SIP account, control which SIP accounts the phones connected to the VMG use and configure audio settings such as volume levels for the phones connected to the VMG. • Use the SIP Service Provider screen (Section 21.4 on page 216) to configure the SIP server information, QoS for VoIP calls, the numbers for certain phone functions, and dialing plan. • Use the Phone Device screen (Section 21.5 on page 221) to view detailed information of the phone devices. • Use the Region screen (Section 21.6 on page 223) to change settings that depend on the country you are in. • Use the Call Rule screen (Section 21.7 on page 223) to set up shortcuts for dialing frequently-used (VoIP) phone numbers. You don't necessarily need to use all these screens to set up your account. In fact, if your service provider did not supply information on a particular field in a screen, it is usually best to leave it at its default setting. 21.1.2 What You Need to Know About VoIP VoIP VoIP stands for Voice over IP. IP is the Internet Protocol, which is the message-carrying standard the Internet runs on. So, Voice over IP is the sending of voice signals (speech) over the Internet (or another network that uses the Internet Protocol). SIP SIP stands for Session Initiation Protocol. SIP is a signaling standard that lets one network device (like a computer or the VMG) send messages to another. In VoIP, these messages are about phone calls over VMG4927-B50A / VMG9827-B50A User's Guide 210