EXFO EXpert VoIP Test Tools User Manual
EXpert VoIP Test Tools
User Guide
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October 16, 2014
Version number: 2.0.0.0
EXpert IP 101
Licence Agreement and Warranty
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102 EXpert VoIP Test Tools
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EXpert IP 103
Contents
1 Introducing the EXpert VoIP Test Tools ....................................................... 1
Conventions ............................................................................................................................2
2 Getting Started ............................................................................................ 3
Signal Connection ...................................................................................................................3
Laser Safety Information .........................................................................................................3
Starting the EXpert VoIP Test Tools Application .......................................................................3
3 Using the Graphical User Interface ............................................................. 5
Main Application Window .....................................................................................................5
Arrow Buttons .......................................................................................................................8
Keyboard Usage .....................................................................................................................9
4 Selecting and Starting a Test ..................................................................... 11
RTP .......................................................................................................................................12
SIP ........................................................................................................................................13
SCCP .....................................................................................................................................15
H.323 ....................................................................................................................................17
H.248/Megaco ......................................................................................................................18
5 Test Setup ................................................................................................... 19
Interface .............................................................................................................................20
Configuration (RTP) .............................................................................................................23
Configuration (SIP) ..............................................................................................................26
Configuration (SCCP) ...........................................................................................................32
Configuration (H.323) ..........................................................................................................35
Configuration (H.248/Megaco) ............................................................................................39
Controller Setup ..................................................................................................................42
Responder Setup .................................................................................................................45
Parameters (SCCP) ...............................................................................................................48
Parameters (H.323) ..............................................................................................................49
Parameters (H.248/Megaco) .................................................................................................51
Threshold .............................................................................................................................52
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6 Test Results ..................................................................................................53
Call Details ...........................................................................................................................54
Call Manager Statistics (H.248/Megaco) ..............................................................................56
Call Manager Statistics (H.323) ............................................................................................58
Call Manager Statistics (SCCP) .............................................................................................60
Call Quality Details ...............................................................................................................62
Controller Statistics ...............................................................................................................65
Responder Statistics ..............................................................................................................68
Summary (H.248/Megaco) ...................................................................................................71
Summary (H.323) .................................................................................................................73
Summary (RTP) ....................................................................................................................76
Summary (SCCP) ..................................................................................................................79
Summary (SIP) .....................................................................................................................81
7 Test Control .................................................................................................85
Start/Stop Button ..................................................................................................................85
Load/Save ...........................................................................................................................86
Save/Load - Record Audio Tab ..............................................................................................87
Save/Load - Packet Capture ..................................................................................................87
Report .................................................................................................................................88
Report - Open Tab ...............................................................................................................89
8 Troubleshooting ..........................................................................................91
Solving Common Problems ...................................................................................................91
Contacting the Technical Support Group ..............................................................................92
A Glossary .......................................................................................................93
Acronym List .........................................................................................................................93
Index .................................................................................................................97
Copyright Information ........................................................................................................101
2 EXpert VoIP Test Tools
1 Introducing the EXpert VoIP
Test Tools
The EXpert VoIP Test Tools provides Ethernet testing capability on the
EXFO’s platform. It runs as a separate software application on the platform
and operates independently of the modules installed on the platform. The
EXpert VoIP Test Tools application generates a single VoIP call from the
platform to another EXFO’s platform supporting the application or any IP
phone. The call can either be "live", “stored audio” or “synthesized media”.
Several signaling technologies are supported including SIP, SCCP, H.323,
and H.248 to support the majority of VoIP environments currently used in
the industry. Resulting quality metrics include MOS, R-factor as well as
numerous RTP loss metrics.
The EXpert VoIP Test Tools application runs on the following EXFO’s
platforms: FTB-1, FTB-2, FTB-2 Pro, and FTB-200v2.
EXpert IP 1
Introducing the EXpert VoIP Test Tools
Conventions
Conventions
Before using the product described in this guide, you should understand
the following conventions:
Indicates a potentially hazardous situation which, if not avoided,
could result in death or serious injury. Do not proceed unless you
understand and meet the required conditions.
Indicates a potentially hazardous situation which, if not avoided,
may result in minor or moderate injury. Do not proceed unless you
understand and meet the required conditions.
Indicates a potentially hazardous situation which, if not avoided,
may result in component damage. Do not proceed unless you
understand and meet the required conditions.
WARNING
CAUTION
CAUTION
IMPORTANT
Refers to information about this product you should not overlook.
2 EXpert VoIP Test Tools
2 Getting Started
Signal Connection
The EXpert VoIP Test Tools uses the 10/100/1000 Mbit/s Ethernet RJ45 port
of the EXFO’s platform.
Connect the 10/100/1000 Mbit/s electrical signal to be tested to the RJ45
port of the EXFO’s platform.
Note: Refer to the EXFO’s platform User Guide for more information.
Laser Safety Information
The EXpert VoIP Test Tools software is not provided with any hardware
components. However, it may be used with your platform or modules
which may contain laser components. Refer to the user guides of your
platform or modules for further laser safety details and instructions.
Starting the EXpert VoIP Test Tools Application
The EXpert VoIP Test Tools application is pre-installed on the EXFO’s
platform. If the EXpert VoIP Test Tools is not already installed, refer to the
EXFO’s platform User Guide for more information on how to install the
application.
Note: The application can be used in trial mode if you do not have a valid license.
You can follow the on-screen instructions to activate the trial. If you wish to
renew the trial period or purchase a valid license, then refer to MyEXFO. For
information on how to install and activate software options, refer to the
EXFO’s platform User Guide.
EXpert IP 3
Getting Started
Starting the EXpert VoIP Test Tools Application
To start the EXpert IP Test Tool application:
1. FTB-1: From Mini ToolBox, tap on the Te st To ol s tab.
FTB-2 and FTB-2 Pro: From Tool Bo x X, tap the Te s t Too ls button.
FTB-200v2: From Compact ToolBox, tap on the Tes t Too l s tab.
2. Select the E Xpe rt VoI P Tes t Tool s then tap on Start. At startup, the
application always loads the previous configuration.
4 EXpert VoIP Test Tools
3 Using the Graphical User
Main Window
Title Bar
Te s t Co n tr o l
Main Menu
Application
Buttons
Status Bar
Test Results
Interface
This chapter describes the graphical user interface of the EXpert VoIP Test
Tools application.
Main Application Window
The following main application window is displayed when the EXpert VoIP
Test Tools application is started.
Main Window
The main window allows to setup a test and to view the test status and
results.
EXpert IP 5
Using the Graphical User Interface
Main Application Window
Status Bar
The status bar displays the following information.
Icon and/or text Description
Test name Test name of the selected test.
Link arrow Green arrow: Ethernet Link up
Red arrow: Ethernet Link down.
Interface speed 10 Mbit/s, 100 Mbit/s, or 1000 Mbit/s.
Test status Current test status.
Title Bar
The title bar displays the software application name and the battery level
indicator.
Test Control
Note: Refer to Test C ont ro l on page 85 for more information.
Main Menu
The EXpert VoIP Test Tools main menu allows the selection of a test tool.
The selected test tool is the one with a check mark to its left. Refer to
Selecting and Starting a Test on page 11.
Test Results
Note: Refer to Test R esu l ts on page 53 for more information.
6 EXpert VoIP Test Tools
Using the Graphical User Interface
Main Application Window
Application Buttons
About (i) mainly displays the product version details and technical
support information.
Software Options button displays the list of software options enabled.
For information on how to install and activate software options, refer to
the EXFO’s platform User Guide.
Option Name Description
EXPERTVOIP Enable "VoIP call test tool" application
EXPERTSIP SIP call signaling support for EXpert VoIP Test Tools
EXPERTSCCP SCCP call signaling support for EXpert VoIP Test
Too ls
EXPERTH.323 H.323 call signaling support for EXpert VoIP Test
Too ls
EXPERTH.248 H.248/Megaco call signaling support for EXpert
VoI P Test Too ls
Licence Agreement button displays the details of the product licence
agreement.
Help (?) displays the help information related to the content of the
active main window. It is also possible to navigate through the
remainder of the help information.
Exit (x) closes the application.
EXpert IP 7
Using the Graphical User Interface
Moves to the top of the list.
Moves one page up.
Moves one line up.
Moves one line down.
Moves one page down.
Moves to the end of the list.
Arrow Buttons
Arrow Buttons
8 EXpert VoIP Test Tools
Using the Graphical User Interface
Keyboard Usage
Keyboard Usage
The GUI pops up different keyboards to modify data. Following are the
usual keyboard keys:
Left arrow moves the cursor one position to the left.
Right arrow moves the cursor one position to the right.
Up arrow increases the byte value by one.
Down arrow decreases the byte value by one.
Del deletes the value at the cursor position.
Back deletes the value preceding the cursor position.
OK completes data entry.
Cancel closes the keyboard and discards the keyboard entry.
Previous... or Presets allows the selection of previously configured
values. This button is only available for certain fields like IP Address,
MAC Address, etc.
Note: For certain text fields, the GUI pops up or uses the platform’s on-screen
keyboard. Refer to the platform user guide for more information on how to
used it.
For full keyboard, the Back, Del, Shift, and Space bar keys have the same
functionality as a regular PC keyboard.
EXpert IP 9
4 Selecting and Starting a Test
A test can be created either by selecting the test from the Tes t Menu or by
loading a previously saved configuration (refer to Load/Save on page 86 for
more information).
The EXpert VoIP Test Tools main menu offers the following test tools:
Test Tools
RTP on page 12
SIP on page 13
SCCP on page 15
H.323 on page 17
H.248/Megaco on page 18
EXpert IP 11
Selecting and Starting a Test
RTP
RTP
The RTP (Real Time Protocol) network test is a peer-to-peer test that
measures the VoIP related parameters by streaming RTP packets between
two endpoints.
The RTP network test simulates VoIP traffic by streaming RTP packets
between a Controller test set, which initiates the packet stream, and a
Responder endpoint, which initiates its own stream to the Controller test
set.
The Controller sends an audio packet stream to the Responder. The audio
stream is based on the type of traffic parameter (and, optionally, test length
parameter). Port selection is determined by the setting of the UDP Port
Parameters.
The Responder initiates a packet stream to the Controller. The Controller
receives the packets that are sent from the Responder.
To select, configure, and start a RTP Test:
1. From the Main Menu, tap RTP.
2. From the Interface tab, configure the test interface parameters. See
Interface on page 20. Ensure that the link is up in the status bar before
proceeding to the next step.
3. From the Configuration tab, configure the RTP test. See Configuration
(RTP) on page 23.
4. From the Threshold tab, enable and configure the threshold values.
See Threshold on page 52.
5. Press Start to start the test.
6. For results, refer to Summary (RTP) on page 76, Controller Statistics on
page 65, and Responder Statistics on page 68.
7. If required, tap the Report button to generate the report file of the
results and statistics. Refer to Report on page 88 for more information.
12 EXpert VoIP Test Tools
Selecting and Starting a Test
SIP
The SIP (Session Initiation Protocol) test measures the performance of
Voice over IP (VoIP) ser vices within a network. The test uses the SIP for call
signaling and the RTP for digitally transporting the encoded audio.
The SIP signaling portion of the test can be transported over UDP/TCP. SIP
calls transported over UDP/TCP can be routed through a proxy server. The
test's RTP functionality conforms to RFC 3550.
The SIP test measures call statistics for a SIP call and initiates a call to or
answers a call from a given endpoint. It reports call setup and media path
statistics between the test set and a SIP endpoint or another EXpert VoIP
SIP enabled test set.
The SIP test operates in two modes.
Network Active Test
Service Active Test
The SIP network active test is performed, if EXFO devices (i.e. EXpert IP
Test Tools devices) are selected on both ends, that is, on the Controller side
and the endpoint. The SIP network active test operates peer-to-peer in UDP
communication mode along with third-party SIP proxy servers to set up
calls between two endpoints, a Controller, which initiates the call, and a
Responder, which is responsible for completing the call and, optionally,
echoing media packets sent from the Controller. For the SIP network active
test in TCP communication mode third-party SIP proxy servers are
mandatory. A SIP test cycle consists of the initiation and termination of an
audio session (simulated audio data) between two endpoints for which it
reports call setup and audio stream statistics.
SIP
The SIP test measures the call statistics. It initiates and answers a SIP call
from a given endpoint. It reports call setup and media path statistics
between the test set and a SIP endpoint or another EXpert VoIP SIP
enabled test set.
EXpert IP 13
Selecting and Starting a Test
SIP
To select, configure, and start a SIP Test:
1. From the Main Menu, tap SIP.
2. From the Interface tab, configure the test interface parameters. See
Interface on page 20. Ensure that the link is up in the status bar before
proceeding to the next step.
3. From the Configuration tab, configure the SIP test. See Configuration
(SIP) on page 26.
4. From the Controller Setup tab, configure the controller settings. See
Controller Setup on page 42.
5. From the Responder Setup tab, configure the responder settings. See
Responder Setup on page 45.
6. From the Threshold tab, enable and configure the threshold values.
See Threshold on page 52.
7. Press Start to start the test.
8. For results, refer to Summary (SIP) on page 81, Call Details on page 54,
and Controller Statistics on page 65.
9. If required, tap the Report button to generate the report file of the
results and statistics. Refer to Report on page 88 for more information.
14 EXpert VoIP Test Tools
Selecting and Starting a Test
SCCP
SCCP
The SCCP (Skinny Client Control Protocol) service active test measures the
performance of calls between two endpoints and a SCCP peer endpoint
made through the Cisco Call Manager.
In the SCCP test, the Controller acts as a calling endpoint (Caller), and the
Responder acts as an answering endpoint (Callee). Both endpoints must
be registered in the CallManager. Devices registered in the CallManager are
assigned a telephone number associated with the MAC address of the
device.
Note: Each endpoint executing a test against a given CallManager must have a
unique MAC address-phone number pair for that CallManager.
Note: The Caller and the Callee must be manually registered with the
CallManager with respect to their phone type before you configure the test.
For executing the call successfully, the Callee’s phone number must be a
valid number from the CallManager’s registration tables, and it should be
associated with the Responder’s MAC address.
To select, configure, and start a SCCP Test:
1. From the Main Menu, tap SCCP.
2. From the Interface tab, configure the test interface parameters. See
Interface on page 20. Ensure that the link is up in the status bar before
proceeding to the next step.
3. From the Configuration tab, configure the SCCP test. See
Configuration (SCCP) on page 32.
4. From the Parameters tab, configure the call, phone, and media
parameters. See Parameters (SCCP) on page 48.
5. From the Threshold tab, enable and configure the threshold values.
See Threshold on page 52.
EXpert IP 15
Selecting and Starting a Test
SCCP
6. Press Start to start the test.
7. For results, refer to Summary (SCCP) on page 79, Call Quality Details
on page 62, and Call Manager Statistics (SCCP) on page 60.
8. If required, tap the Report button to generate the report file of the
results and statistics. Refer to Report on page 88 for more information.
16 EXpert VoIP Test Tools
Selecting and Starting a Test
H.323
The H.323 test is a set-to-service test that measures call statistics for an
H.323 call. It either makes a H.323 call to a given destination (directly to an
endpoint, or through the gatekeepers and/or gateways that you specify) or
answers a call made to it from an endpoint, and reports call setup and
media path statistics. The test assumes that you know the destination
(specified using an IP address, telephone number, or H.323 ID), and that
the destination will answer the call and will not hang up during the
configured call duration. The H.323 test supports versions 1 through 4 of the
H.323 protocol.
To select, configure, and start a H.323 Test:
1. From the Main Menu, tap H.323.
2. From the Interface tab, configure the test interface parameters. See
Interface on page 20. Ensure that the link is up in the status bar before
proceeding to the next step.
3. From the Configuration tab, configure the H.323 test. See
Configuration (H.323) on page 35.
H.323
4. From the Parameters tab, configure the local, and media parameters.
See Parameters (H.323) on page 49.
5. From the Threshold tab, enable and configure the threshold values.
See Threshold on page 52.
6. Press Start to start the test.
7. For results, refer to Summary (H.323) on page 73, Call Quality Details
on page 62, and Call Manager Statistics (H.323) on page 58.
8. If required, tap the Report button to generate the report file of the
results and statistics. Refer to Report on page 88 for more information.
EXpert IP 17
Selecting and Starting a Test
H.248/Megaco
H.248/Megaco
The H.248, the Media Gateway Control Protocol, is designed for distributed
media gateway systems in which one or more centralized gateway
controllers (Call Agents) control one or more media gateways.
The VoIP H.248 test measures the performance of the services of H.248
based VoIP networks. It either initiates a call to or answers a call from other
endpoints based on a telephone number. Performance is measured for
both the call signaling path (H.248 signaling) and the media path
(RTP/RTCP). Each set of measurements is performed during a test cycle. A
test cycle consists of the initiation and termination of a single, bi-directional
RTP audio session between the test set and a third-party device.
To select, configure, and start a H.248/Megaco Test:
1. From the Main Menu, tap H.248/Megaco.
2. From the Interface tab, configure the test interface parameters. See
Interface on page 20. Ensure that the link is up in the status bar before
proceeding to the next step.
3. From the Configuration tab, configure the H.248/Megaco test. See
Configuration (H.248/Megaco) on page 39.
4. From the Parameters tab, configure the local parameters. See
Parameters (H.248/Megaco) on page 51.
5. From the Threshold tab, enable and configure the threshold values.
See Threshold on page 52.
6. Press Start to start the test.
7. For results, refer to Summary (H.248/Megaco) on page 71, Call Quality
Details on page 62, and Call Manager Statistics (H.248/Megaco) on
page 56.
8. If required, tap the Report button to generate the report file of the
results and statistics. Refer to Report on page 88 for more information.
18 EXpert VoIP Test Tools
5Test Setup
The test setup offers the following tabs depending on the test:
Tabs
RTP SIP SCCP H.323 H.248
Interface XXXXX20
Configuration 23 26 32 35 39 <---
Controller Setup X 42
Responder Setup X 45
Parameters 48 49 51 <---
Threshold XXXXX52
Tes t
Page
EXpert IP 19
Test Setup
Interface
Interface
Note: The interface configuration parameters apply globally to all tests.
From the Main Menu, tap on a test and the Interface tab.
Test Int erface
Tes t Int er fa ce displays the network adapter(s) found on the EXFO’s
platform. The first network adapter is selected by default.
Speed/Duplex selects the network adapter speed and duplex mode:
Auto Negotiation (default), 10 Mbit/s Half Duplex,
10 Mbit/s Full Duplex, 100 Mbit/s Half Duplex,
100 Mbit/s Full Duplex, 1000 Mbit/s Full Duplex. Changing this
setting restarts the network adapter, a user confirmation is required.
Obtain IP from DHCP
Obtain IP from DHCP check box when selected (default) allows to
dynamically obtain an IP address from a DHCP (Dynamic Host
Configuration Protocol) server for the Ethernet port.
VLAN Tagging
Allows to enable or disable VLAN Tagging. VLAN Tagging check box must
be selected (default) for all test tools at the exception of the VLAN Scan test
tool for which VLAN Tagging must be disabled.
Note: VLAN Tagging enable/disable will reboot the device. A warning pop-up
message is displayed. Press Yes to reboot the platform. The EXpert VoIP
Test Tools application has to be manually restarted after the platform’s
reboot.
20 EXpert VoIP Test Tools
Test Setup
Interface
Network Configuration
Note: Network configuration is only possible when the Obtain IP from DHCP
check box is cleared. Otherwise, when the Obtain IP from DHCP check
box is selected, all parameters are not configurable and set to the values
obtained through DHCP process.
IP Address allows to enter the IP address for the Ethernet port: 0.0.0.1
to 223.255.255.255.
Subnet Mask allows to enter the Subnet Mask for the Ethernet port:
0.0.0.1 to 255.255.255.255.
Default Gateway allows to enter a default Gateway address: 0.0.0.01
to 255.255.255.255.
DNS Server allows to enter the DNS Server address: 0.0.0.0 to
223.255.255.255.
Refresh, available when the Obtain IP from DHCP check box is
selected, refreshes the network configuration parameters.
Apply allows to apply the network configuration settings.
EXpert IP 21
Test Setup
Interface
Ethernet Statistics
The following Ethernet Statistics are displayed.
Link Status displays the status of the link: Connected or
Disconnected.
Link Speed (Mbps) displays the speed of the Ethernet connection.
Domain Name displays the name of the connected domain.
Frame TX displays the total Ethernet frames transmitted.
Frame RX displays the total Ethernet frames received.
Duplex displays the Duplex mode of the link: half duplex, full duplex,
or auto.
Errored Frames displays the number of Ethernet frames received with
error.
Dropped Frames displays the number of Ethernet frames dropped.
Bytes TX displays the total data bytes transmitted.
Bytes RX displays the total data bytes received.
MAC Address displays the MAC Address of the EXFO’s platform.
Note: Bytes TX and Bytes RX indicate the total amount of data that has passed
through the Ethernet interface either way. EXpert VoIP Test Tools update the
Ethernet statistics every second.
22 EXpert VoIP Test Tools
Test Setup
Configuration (RTP)
Configuration (RTP)
From the Main Menu, tap RTP and the Configuration tab.
Call Mode
Select the call mode:
Controller establishes a control communications channel with the
Responder. It also sends the configuration details to the Responder.
By default, the Controller is selected.
Responder (default) is the endpoint, which initiates its own stream to
the Controller test set. When Responder is selected, all other
configuration parameters are disabled.
Test Length
Select the test length:
Tes t Dur at ion (se c ) is the length of time the test will run in seconds:
1 to 600 seconds (default is 10 seconds).
Number of Packets is the number of RTP packets to exchange
between the controller and the responder: 2 to 65535 (default is 500).
Call Information
Media Type
Live Call (default) specifies that actual call is established between
the Controller and the Responder.
Synthesized Media specifies that EXpert IP Test Tools application
automatically generates a randomly RTP data.
EXpert IP 23
Test Setup
Configuration (RTP)
Codec represents the audio Codec (packet interval, payload size, and
IP Media DSCP
Destination IP address
IP Address
IP bandwidth) of the call simulated by the Controller.
For Live Call media type: G.711 μlaw, and G.711 aLaw (default).
For Synthesized Media type: G.711 μlaw, G.711 aLaw (default), G.722,
G.723.1, G.726, G.728, G.729, G.729A, G.729B, and G.729AB.
1
(IP Media Differentiated Services Code Point)
describes a set of end-to-end QoS (Quality of Service) capabilities.
End-to-end QoS is the ability of the network to deliver service required
by the specific network traffic from one end of the network to the other
end. The accepted range is from 0 (default) to 63.
Manually Configure IP allows to configure the destination IP
address manually: 0.0.0.1 to 223.255.255.255.
Auto Discovery List allows to select the IP address from a list of IP
addresses discovered by the application.
Utilities
Traceroute check box when selected (default) calculates the
performance of the network path between two endpoints of a running
test every time the test is run.
Capture check box when selected (cleared by default) captures the
RTP packet stream for the running test. Once test is completed, the
capture file is available and can be opened in the Wireshark
application from the Load/Save button; refer to Save/Load - Packet
Capture on page 87 for more information.
1. Not supported on FTB-2 and FTB-2 Pro.
24 EXpert VoIP Test Tools
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