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ZyXEL P-2024 User Guide - Page 124

Phone Calls and VoIP, but my Internet connection is not available anymore.

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Page 124 highlights

Chapter 13 Troubleshooting 3 If the problem continues, contact your ISP. V I cannot access the Internet anymore. I had access to the Internet (with the P2024), but my Internet connection is not available anymore. 1 Check the hardware connections, and make sure the LEDs are behaving as expected. See the Quick Start Guide and Section 1.4.2 on page 29. 2 Disconnect and re-connect the power adaptor to the P-2024. 3 If the problem continues, contact your ISP. V The Internet connection is slow or intermittent. 1 There might be a lot of traffic on the network. Look at the LEDs, and check Section 1.4.2 on page 29. If the P-2024 is sending or receiving a lot of information, try closing some programs that use the Internet, especially peer-to-peer applications. 2 Disconnect and re-connect the power cable to the P-2024. 3 If the problem continues, contact the network administrator or vendor, or try one of the advanced suggestions. 13.4 Phone Calls and VoIP When troubleshooting VoIP problems, bear in mind that while the P-2024's hardware or configuration may be at fault, the equipment at the other end of the line (the service provider or the other user) may equally be malfunctioning or misconfigured. If you find no fault with the P-2024's connection or settings, this may be the case. V I cannot hear a tone of any kind when I lift the receiver of a phone connected to the P-2024. Test the connection between the telephone and the P-2024 as follows. 1 If you have not already done so, check that you connected the hardware as described in the Quick Start Guide. If you have other hardware connected between the telephone and the P-2024, ensure it is also correctly configured. 2 Check the LEDs on the P-2024. When you lift the receiver of a phone connected to one of the P-2024's ports, the corresponding LED should flash. If this does not happen, and you have other hardware between the telephone and the P-2024, try connecting the phone directly to the P-2024's Telco-50 cable, if possible. 124 P-2024 User's Guide

Section	Page
User’s Guide	1
About This User's Guide	3
Document Conventions	4
Safety Warnings	6
Contents Overview	9
Table of Contents	11
List of Figures	17
List of Tables	21
Introduction and Wizard	25
Introducing the P-2024	27
1.1 Overview	27
1.2 Ways to Manage the P-2024	27
1.3 Good Habits for Managing the P-2024	28
1.4 Hardware	28
1.4.1 Ports	29
1.4.2 LEDs	29
1.4.3 Console Port	29
1.4.4 Digital Signal Processor Modules	30
1.5 Resetting the P-2024	31
Introducing the Web Configurator	33
2.1 Web Configurator Overview	33
2.2 Accessing the Web Configurator	33
2.3 Web Configurator Main Screen	35
2.3.1 Title Bar	35
2.3.2 Navigation Panel	36
2.3.3 Main Window	37
2.3.4 Status Bar	37
The Connection Wizard	39
3.1 Main Wizard Screen	39
3.1.1 Welcome	40
3.1.2 System Information	40
3.1.3 ISP Parameters	41
3.1.4 Your IP Address	43
3.1.5 WAN IP Address Assignment	43
3.1.6 Finish	46
Status Screens	47
4.1 Status Screen	47
4.2 Packet Statistics Window	50
4.3 VoIP Statistics Window	51
Network	55
WAN	57
5.1 WAN Overview	57
5.1.1 PPPoE Encapsulation	57
5.1.2 WAN IP Address Assignment	57
5.1.3 DNS Server Address Assignment	58
5.2 WAN Screens	58
5.2.1 WAN Internet Connection Screen (Ethernet)	58
5.2.2 WAN Internet Connection Screen (PPPoE)	59
5.2.3 WAN Advanced Screen	61
VoIP	63
SIP	65
6.1 SIP Overview	65
6.1.1 Introduction to VoIP	65
6.1.2 Introduction to SIP	65
6.1.3 SIP Identities	65
6.1.4 SIP Call Progression	66
6.1.5 SIP Client Server	66
6.1.6 RTP	68
6.1.7 NAT and SIP	68
6.1.8 Voice Coding	70
6.1.9 PSTN Call Setup Signaling	70
6.1.10 MWI (Message Waiting Indication)	71
6.1.11 Quality of Service (QoS)	71
6.2 SIP Screens	72
6.2.1 SIP Settings Screen	72
6.2.2 Advanced SIP Setup Screen	73
6.2.3 SIP QoS Screen	77
Phone	79
7.1 Analog Phone Overview	79
7.1.1 Voice Activity Detection/Silence Suppression/Comfort Noise	79
7.1.2 Echo Cancellation	79
7.1.3 Supplementary Phone Services Overview	79
7.2 Phone Screens	82
7.2.1 Analog Phone Screen	82
7.2.2 Advanced Analog Phone Setup Screen	83
7.2.3 Common Phone Settings Screen	84
7.2.4 Phone Region Screen	85
Phone Book	87
8.1 Incoming Call Policy Screen	87
Management	91
Remote Management	93
9.1 Remote Management Overview	93
9.1.1 Remote Management Limitations	93
9.1.2 System Timeout	94
9.2 Remote Management Screens	94
9.2.1 WWW Screen	94
9.2.2 Telnet Screen	94
9.2.3 FTP Screen	95
9.3 SNMP	96
9.3.1 Supported MIBs	97
9.3.2 SNMP Traps	97
9.3.3 Configuring SNMP	97
Maintenance, Troubleshooting and Specifications	99
System	101
10.1 General System Screen	101
10.2 Dynamic DNS	102
10.2.1 Dynamic DNS Screen	102
10.3 Time Setting Overview	104
10.3.1 Pre-defined NTP Time Servers List	104
10.3.2 Synchronizing with a Time Server	105
10.3.3 Time Settings Screen	105
Logs	107
11.1 Logs Overview	107
11.1.1 Alerts	107
11.1.2 Syslog Logs	107
11.2 Logs Screens	108
11.2.1 View Log Screen	108
11.2.2 Log Settings Screen	108
11.3 Log Message Descriptions	110
Tools	115
12.1 Firmware Screen	115
12.1.1 Firmware Upload Screens	116
12.2 Configuration Screen	117
12.2.1 Restore Configuration Screens	118
12.3 Restart Screen	119
Troubleshooting	121
13.1 Power, Hardware Connections, and LEDs	121
13.2 P-2024 Access and Login	122
13.3 Internet Access	123
13.4 Phone Calls and VoIP	124
Product Specifications	129
14.1 General P-2024 Specifications	129
14.2 Telco-50 Connector Pin Assignments	131
14.2.1 P-2024 Phone Port Pin Assignments	131
14.2.2 Telco-50 Cable Connector Pin Assignments	131
14.3 Console Port Pin Assignments	132
Appendices and Index	133
Setting up Your Computer’s IP Address	135
Pop-up Windows, JavaScripts and Java Permissions	151
Rack-mount Installation	157
IP Addresses and Subnetting	159
Command Interpreter	169
NetBIOS Filter Commands	173
Internal SPTGEN	175
Legal Information	191
Customer Support	195

Match case Limit results 1 per page

Chapter 13 Troubleshooting

P-2024 User’s Guide

124

If the problem continues, contact your ISP.

I cannot access the Internet anymore. I had access to the Internet (with the P-

2024), but my Internet connection is not available anymore.

Check the hardware connections, and make sure the LEDs are behaving as expected. See

the Quick Start Guide and

Section 1.4.2 on page 29

Disconnect and re-connect the power adaptor to the P-2024.

If the problem continues, contact your ISP.

The Internet connection is slow or intermittent.

There might be a lot of traffic on the network. Look at the LEDs, and check

Section 1.4.2

on page 29

. If the P-2024 is sending or receiving a lot of information, try closing some

programs that use the Internet, especially peer-to-peer applications.

Disconnect and re-connect the power cable to the P-2024.

If the problem continues, contact the network administrator or vendor, or try one of the

advanced suggestions.

13.4

Phone Calls and VoIP

When troubleshooting VoIP problems, bear in mind that while the P-2024’s hardware or

configuration may be at fault, the equipment at the other end of the line (the service provider

or the other user) may equally be malfunctioning or misconfigured. If you find no fault with

the P-2024’s connection or settings, this may be the case.

I cannot hear a tone of any kind when I lift the receiver of a phone connected

to the P-2024.

Test the connection between the telephone and the P-2024 as follows.

If you have not already done so, check that you connected the hardware as described in

the Quick Start Guide. If you have other hardware connected between the telephone and

the P-2024, ensure it is also correctly configured.

Check the LEDs on the P-2024. When you lift the receiver of a phone connected to one

of the P-2024’s ports, the corresponding LED should flash. If this does not happen, and

you have other hardware between the telephone and the P-2024, try connecting the

phone directly to the P-2024’s Telco-50 cable, if possible.