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Chapter 16 VoIP
P-2601HN(L)-F1 Series User’s Guide
197
PSTN Call Setup Signaling
Dual-Tone MultiFrequency (DTMF) signaling uses pairs of frequencies (one lower
frequency and one higher frequency) to set up calls. It is also known as Touch
Tone®. Each of the keys on a DTMF telephone corresponds to a different pair of
frequencies.
Pulse dialing sends a series of clicks to the local phone office in order to dial
numbers.
3
MWI (Message Waiting Indication)
Enable Message Waiting Indication (MWI) enables your phone to give you a
message–waiting (beeping) dial tone when you have a voice message(s). Your
VoIP service provider must have a messaging system that sends message waiting
status SIP packets as defined in RFC 3842.
16.9.3 Quality of Service (QoS)
Quality of Service (QoS) refers to both a network's ability to deliver data with
minimum delay, and the networking methods used to provide bandwidth for real-
time multimedia applications.
Type of Service (ToS)
Network traffic can be classified by setting the ToS (Type of Service) values at the
data source (for example, at the ZyXEL Device) so a server can decide the best
method of delivery, that is the least cost, fastest route and so on.
DiffServ
DiffServ is a class of service (CoS) model that marks packets so that they receive
specific per-hop treatment at DiffServ-compliant network devices along the route
based on the application types and traffic flow. Packets are marked with DiffServ
Code Points (DSCP) indicating the level of service desired. This allows the
intermediary DiffServ-compliant network devices to handle the packets differently
depending on the code points without the need to negotiate paths or remember
state information for every flow. In addition, applications do not have to request a
particular service or give advanced notice of where the traffic is going.
4
3.
The ZyXEL Device does not support pulse dialing at the time of writing.
4.
The ZyXEL Device does not support DiffServ at the time of writing.
Summary of Contents for P-2601HN(L)-F1 Series
Page 2: ......
Page 8: ...Safety Warnings P 2601HN L F1 Series User s Guide 8 ...
Page 10: ...Contents Overview P 2601HN L F1 Series User s Guide 10 ...
Page 19: ...19 PART I User s Guide ...
Page 20: ...20 ...
Page 59: ...59 PART II Technical Reference ...
Page 60: ...60 ...
Page 110: ...Chapter 6 Wireless P 2601HN L F1 Series User s Guide 110 ...
Page 130: ...Chapter 8 Routing P 2601HN L F1 Series User s Guide 130 ...
Page 134: ...Chapter 9 DNS Route P 2601HN L F1 Series User s Guide 134 ...
Page 178: ...Chapter 16 VoIP P 2601HN L F1 Series User s Guide 178 Figure 81 VoIP SIP SIP Service Provider ...
Page 202: ...Chapter 16 VoIP P 2601HN L F1 Series User s Guide 202 ...
Page 206: ...Chapter 17 Logs P 2601HN L F1 Series User s Guide 206 ...
Page 212: ...Chapter 18 System Monitor P 2601HN L F1 Series User s Guide 212 ...
Page 220: ...Chapter 21 SNMP P 2601HN L F1 Series User s Guide 220 ...
Page 232: ...Chapter 26 Backup Restore P 2601HN L F1 Series User s Guide 232 ...
Page 290: ...Appendix B Setting Up Your Computer s IP Address P 2601HN L F1 Series User s Guide 290 ...
Page 322: ...Appendix D Wireless LANs P 2601HN L F1 Series User s Guide 322 ...
Page 332: ...Appendix F Open Software Announcements P 2601HN L F1 Series User s Guide 332 ...
Page 344: ...Index P 2601HN L F1 Series User s Guide 344 ...