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4
Chapter 2: Applications for the IP Telephony System
How Does the IP Telephony System Fit into My Business or Home?
IP Telephony System
Chapter 2: Applications for the IP Telephony System
How Does the IP Telephony System Fit into My Business or Home?
High-speed Internet access is a valuable resource. When you have more than one computer, chances are you
want to share that Internet access with all of your computers. That’s when you create a network, a collection of
devices connected to each other. A device called a router connects computers and other devices, so they can
share a high-speed Internet connection and other resources, including data and printers.
One of the biggest benefits of the Internet is data communications, either e-mail or web browsing, whether you
send a file to a client or download the latest software upgrade. With the System, you also get voice
communications.
What Does the IP Telephony System Do?
The System connects multiple Internet phones to an Internet phone service. The System manages and routes all
calls. Incoming calls go to the auto-attendant, an automated greeting system, or correct internal extension (each
phone has its own extension number). Outgoing calls go to the correct external phone number (you can have
more than one external phone number).
You can have not only more than one external phone number, but also up to four Internet Telephony Service
Providers (ITSPs) for maximum flexibility.
A Typical Scenario
Typically, you connect the Internet port of the System to a local network port of your router. Then connect a switch
to another local network port of your router. Use this switch to connect Internet phones, computers, and other
devices. Then connect an administration computer to the Ethernet port of the System.
If you have analog telephones or fax machines, you can connect them to the Phone ports, so you can also use
those phones to make Internet phone or fax calls. (More details are available in “Chapter 4: Getting Started.”)
SPA941
Cable/DSL
Modem
Analog
Phone
Internet
Desktop
Computer
Switch
SPA941
Administration
Computer
Fax
SPA941
Router
NOTE:
The basic configuration of the System lets you connect up to four Internet phones and use
up to four ITSPs. To expand the basic configuration, contact your primary ITSP for more
information.
Figure 2-1: A Scenario for the IP Telephony System
Page 12 / 127
5
Chapter 2: Applications for the IP Telephony System
Which Call Management Features Does the IP Telephony System Offer?
IP Telephony System
What Kind of Router Should I Use?
For your network, get the highest-performance router possible. For best results, use a QoS (Quality of Service)
router, so it can assign top priority to voice traffic.
What Kind of Switch Should I Use?
Again, performance is key. For best results, use a switch that offers QoS (Quality of Service) and full wire-speed
switching. QoS enables the switch to give top priority to voice traffic, while full wire-speed switching lets it
forward packets as fast as your network can deliver them. The next best choice is a switch featuring QoS (Quality
of Service).
What if I Keep My Traditional Phone Service?
Traditional phone service, also known as Plain Old Telephone Service (POTS), runs on a network called the Public
Switched Telephone Network (PSTN). If you decide to keep traditional phone service, then connect the Analog
Telephone Adapter (model number: SPA3000) to the switch. (For more information, refer to the SPA3000
documentation.)
Which Call Management Features Does the IP Telephony System Offer?
Beyond basic call routing, the System offers several powerful and sophisticated features:
•
Auto-Attendant. An automated system guides each caller to the appropriate contact.
•
Music-on-Hold. You can combine the auto-attendant feature with the music- or information-on-hold feature,
so the caller has a richer experience with your call system.
•
Call Hunt. You can designate which Internet phones receive outside calls. You can even have calls ring
multiple phones, either simultaneously or one at a time.
•
Paging. When you want to page all of the Internet phones, you can use the System.
•
Dial Plans. When you have more than one dial plan, you can route outgoing calls to take advantage of the best
rates available for the different types of calls.
After setup of the System, you will have dynamic and feature-rich Internet voice communications for your
business or home.
NOTE:
If your ITSP configured the System for
you, then these features may already be set up.
Check with your ITSP for more information.
(To set up these features yourself, refer to
“Chapter 6: Using the Web-based Utility.”)
Page 13 / 127
6
Chapter 3: Getting to Know the IP Telephony System
The Back Panel
IP Telephony System
Chapter 3: Getting to Know the IP Telephony System
The Back Panel
The System’s ports and LEDs are located on its back panel.
Phone 1/2 Ports
The
Phone 1/2
ports allow you to connect analog telephones (or fax machines) to the System
using RJ-11 telephone cables (not included).
Power Port
The
Power
port is where you will connect the power adapter.
Status LED
Yellow. The
Status
LED is solidly lit when the System is powered on and ready for use. It
flashes when the System’s firmware is being upgraded.
Phone 1-2 LED
Green. The
Phone
LED is solidly lit when the phone line is ready for use. It flashes when the
phone line is in use. It is not lit when the phone line is disabled.
Internet Port
This
Internet
port connects to either a router or broadband modem.
Internet LEDs
Yellow and Green. The yellow
Internet
LED is solidly lit when a device is plugged into the
Internet port. The green
Internet
LED is solidly lit when the System is powered on, and it
flashes when the Internet port is actively transmitting or receiving data.
Ethernet Port
The
Ethernet
port connects to an administration computer, so you can access the System’s
Web-based Utility for configuration.
Ethernet LEDs
Yellow and Green. The yellow
Ethernet
LED is solidly lit when a device is plugged into the
Ethernet port. The green
Ethernet
LED is solidly lit when the System is powered on, and it
flashes when the Ethernet port is actively transmitting or receiving data.
Figure 3-1: Back Panel
Page 14 / 127
7
Chapter 4: Getting Started
Overview
IP Telephony System
Chapter 4: Getting Started
Overview
Linksys strongly recommends using the Setup Wizard on the Setup CD-ROM for first-time installation of the
System. For advanced users, you may follow the instructions in this chapter, and then use the Web-based Utility
for additional configuration (refer to “Chapter 6: Using the Web-based Utility”). To use the Interactive Voice
Response Menu, proceed to “Chapter 5: Using the Interactive Voice Response Menu.”
Before You Begin
Make sure you have the following:
•
IP Telephony System (model number: SPA9000)
•
One or more Internet phones (for example, Linksys SPA-family IP Phones, model number: SPA941)
•
A router and cable/DSL modem (or gateway)
•
One or more Ethernet network switches (so you can connect Internet phones or computers)
•
At least one active Internet phone service account and its settings if you want to make external calls
•
An active Internet connection if you want to make external calls
•
At least one computer for configuration of the System and Internet phones
•
Two or more Ethernet network cables
•
Analog telephones or fax machines (optional)
Figure 4-1: A Typical Scenario for the IP Telephony
System
NOTE:
For best results, use a switch that offers QoS (Quality of Service) and full wire-speed
switching. QoS enables the switch to give top priority to voice traffic, while full wire-speed
switching lets it forward packets as fast as your network can deliver them. The next best
choice is a QoS (Quality of Service) switch.
SPA941
Cable/DSL
Modem
Analog
Phone
Internet
Desktop
Computer
Switch
SPA941
Administration
Computer
Fax
SPA941
Router
Page 15 / 127
8
Chapter 4: Getting Started
Instructions for Installing the IP Telephony System
IP Telephony System
Instructions for Installing the IP Telephony System
Internal Calls
To install the System for internal calls, you will do the following:
•
connect and configure the System
•
connect the Internet phones
Connect and Configure the System
1.
(optional) Plug an analog telephone into the Phone 1 port of the System.
2.
(optional) If you have a second analog telephone or fax machine, plug it into the Phone 2 port of the System.
3.
Connect an Ethernet network cable to the Internet port of the System. Then connect the other end of the cable
to one of the Ethernet ports on your router.
4.
Connect a different Ethernet network cable to the Ethernet port of the System. Then connect the other end to
the computer you will use to manage the System (this will be called the administration computer).
5.
Connect the included power adapter to the Power port of the System, and then plug the power adapter into an
electrical outlet. The Status LED will start flashing as the System boots up.
6.
Launch the web browser on the administration computer.
7.
Enter
192.168.0.1/admin/voice/advanced
in the
Address
field (
192.168.0.1
is the default local IP address
of the System). Then press the
Enter
key.
Figure 4-2: Connect to the Phone 1 Port
IMPORTANT:
Do not connect the Phone port to a telephone wall jack. Make sure you only
connect a telephone or fax machine to the Phone port. Otherwise, the System or the
telephone wiring in your home or office may be damaged.
Figure 4-4: Connect to the Ethernet Port
Figure 4-5: Connect to Power
Figure 4-3: Connect to the Internet Port
ip
(internet protocol): a protocol
used to send data over a network.
ip address
: the address used to identify
a computer or device on a network.

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