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Chapter 10 Voice
P-2612HW Series User’s Guide
206
10.13 SIP Technical Reference
This section contains background material relevant to the VoIP > SIP screens.
10.13.1 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.
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.
10.13.2 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.
SIP signaling is separate from the media for which it handles sessions. The media
that is exchanged during the session can use a different path from that of the
SIP Prefix
Phone Book
This section displays all SIP prefix numbers currently configured on the
ZyXEL Device.
#
This is a read-only index number.
Prefix
This field displays the SIP prefix number you dial (before you dial the
phone number) in order to use the SIP account specified in the SIP
Index field.
SIP Index
This field displays the SIP account used to make outgoing calls when
you dial the number in the Prefix field.
SIP Domain
This field displays the SIP domain of the corresponding SIP account.
Modify
Use this field to edit or erase the SIP prefix entry.
Click the Edit icon to copy the information for this SIP prefix entry into
the SIP Prefix section, where you can change it.
Click the Remove icon to erase this SIP prefix entry.
Clear
Click this to erase all the SIP prefix entries.
Cancel
Click this to set every field in this screen to its last-saved value.
Table 63
Phone Book > SIP Prefix
LABEL
DESCRIPTION
Summary of Contents for P-2612HW-F1 -
Page 2: ......
Page 8: ...Safety Warnings P 2612HW Series User s Guide 8...
Page 10: ...Contents Overview P 2612HW Series User s Guide 10...
Page 22: ...Table of Contents P 2612HW Series User s Guide 22...
Page 24: ...24...
Page 56: ...Chapter 3 Wizards P 2612HW Series User s Guide 56...
Page 88: ...88...
Page 120: ...Chapter 6 WAN Setup P 2612HW Series User s Guide 120...
Page 136: ...Chapter 7 LAN Setup P 2612HW Series User s Guide 136...
Page 168: ...Chapter 8 Wireless LAN P 2612HW Series User s Guide 168...
Page 184: ...Chapter 9 Network Address Translation NAT P 2612HW Series User s Guide 184...
Page 250: ...Chapter 12 Firewall P 2612HW Series User s Guide 250...
Page 290: ...Chapter 14 VPN P 2612HW Series User s Guide 290...
Page 320: ...Chapter 15 Certificates P 2612HW Series User s Guide 320...
Page 324: ...Chapter 16 Static Route P 2612HW Series User s Guide 324...
Page 356: ...Chapter 19 Dynamic DNS Setup P 2612HW Series User s Guide 356...
Page 382: ...Chapter 21 Universal Plug and Play UPnP P 2612HW Series User s Guide 382...
Page 384: ...384...
Page 406: ...Chapter 23 Logs P 2612HW Series User s Guide 406...
Page 458: ...458...
Page 494: ...Appendix B Pop up Windows JavaScripts and Java Permissions P 2612HW Series User s Guide 494...
Page 530: ...Appendix D Wireless LANs P 2612HW Series User s Guide 530...