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Page 56 / 286 Scroll up to view Page 51 - 55
Configuring Your System for ITSP Interoperability
Firewalls and SIP
SPA9000 Voice System Administration Guide
54
3
STEP 4
To collect information about the type of NAT your router is using, complete the
following tasks:
a.
Click
Voice tab > SIP
.
b.
Scroll down to the
NAT Support Parameters
section.
c.
From the
STUN Test Enable
field, choose
yes
.
STEP 5
To enable SIP signalling, complete the following task:
a.
Click
Voice tab > Line
N
, where
N
represents the line interface number.
b.
In the
SIP Settings
section, choose
full
from the
SIP Debug Option
field.
STEP 6
Click
Submit All Changes
.
STEP 7
View the syslog messages to determine whether your network uses symmetric
NAT. Look for a warning header in the REGISTER messages, such as Warning: 399
spa "Full Cone NAT Detected.”
Firewalls and SIP
To enable SIP requests and responses to be exchanged with the SIP proxy at the
ITSP, you must ensure that your firewall allows both SIP and RTP unimpeded
access to the Internet.
•
Make sure that the following ports are not blocked:
•
SIP ports—UDP port 5060 through 5063, which are used for the ITSP line
interfaces
•
RTP ports—16384 to 16482
•
Also disable SPI (Stateful Packet Inspection) if this function exists on your
firewall.
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Page 57 / 286
Configuring Your System for ITSP Interoperability
Configuring SIP Timer Values
SPA9000 Voice System Administration Guide
55
3
Configuring SIP Timer Values
The default timer values should be adequate in most circumstances. However, you
can adjust the SIP timer values as needed to ensure interoperability with your
ISTP. For example, if SIP requests are returned with an “invalid certificate”
message, you may need to enter a longer SIP T1 retry value.
To view the default settings or to make changes, open the
Voice > SIP
page, and
scroll down to the
SIP Timer Values
section. .
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Page 58 / 286
4
SPA9000 Voice System Administration Guide
56
Configuring Phone Lines and Calling Routing
Behavior
This chapter describes many features that you can configure on the SPA9000 to
ensure smooth handling of all inbound and outbound calls, and ease of use.
•
“Configuring SPA9000 FXS Ports,” on page 57
•
“Configuring Line Interfaces on the SPA9000,” on page 58
•
“Configuring Dial Plans,” on page 66
•
“Managing the Line Selection for Outbound Calls,” on page 78
•
“Managing Caller ID Settings for Outgoing Calls,” on page 82
•
“Call Forwarding Support on SPA9000,” on page 82
•
“Call Transfer Support on SPA9000,” on page 84
•
“Managing Inbound Calls with the Contact List,” on page 85
•
“Managing Inbound Calls with Hunt Groups,” on page 92
•
“Managing Inbound Calls with Shared Line Appearances,” on page 98
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Configuring Phone Lines and Calling Routing Behavior
Configuring SPA9000 FXS Ports
SPA9000 Voice System Administration Guide
57
4
Configuring SPA9000 FXS Ports
The SPA9000 FXS ports can be used to connect analog phones and fax machines
to the SPA9000 Voice System. A port also can be configured for a Streaming
Audio Server for Music On Hold. See
Chapter 6, “Configuring Music on Hold.”
NOTE
A fax machine can be connected to the Phone port of the SPA9000. Fax support
through an ITSP line requires a T.38 fax machine on both ends and the availability
of T.38 FAX relay through the ITSP.
T.38 support is dependent on fax machine and
network / transport resilience. Linksys makes no guarantee with the use of this
product regarding fax transmission services
STEP 1
Start Internet Explorer, and then enter the IP address of the SPA9000. Click Admin
Login and then click Advanced.
STEP 2
Click
Voice tab > FXS
N
, where N is the port number.
STEP 3
Scroll down to the
Subscriber Information
section, and then enter the following
settings:
•
Display Name:
Enter an extension number of name for the FXS 1 port, such as
Receptionist Area Fax Machine. You can use this extension number to add the
analog phone to the contact list, hunt groups, and shared line appearances.
•
User ID:
Enter a three- to four-digit extension number that is not is use by other
extension.
•
If the device is a fax machine, disable echo cancelling. On the
FXS N
page,
Audio Configuration
section, set the
FAX Disable ECAN
field to
yes
. Also make
sure that the
Preferred Codec
is set to
G.711u
(default setting).
STEP 4
Enter the
Dial Plan
settings, as needed. See
“Configuring Dial Plans,” on page 66
.
STEP 5
Click
Submit All Changes
.
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Configuring Phone Lines and Calling Routing Behavior
Configuring Line Interfaces on the SPA9000
SPA9000 Voice System Administration Guide
58
4
Configuring Line Interfaces on the SPA9000
You can configure the following types of services on the SPA9000 line interfaces:
•
ITSP service:
Up to 16 DID numbers can be supported on each line interface.
You can configure different ITSP accounts on different line interfaces.
•
PSTN service:
You can configure a line interface to register the SPA9000 with
a SPA400 to support PSTN lines.
•
SPA400 voice mail service:
You can configure a line interface to register the
SPA9000 with a SPA400 to support voice mail server. This SPA400 should
have no more than two PSTN lines connected. If more than two PSTN lines and
voice mail are required, you should reserve one SPA400 exclusively for voice
mail. Exceeding these guidelines will affect the quality of voice mail playback
and command recognition.
•
ISDN services:
You can configure a line interface to register the SPA9000 with
a Mediatrix® 4400 ISDN BRI Digital gateway. For more information, refer to the
SPA9000/Mediatrix
®
440X ISDN Gateway Configuration Guide
. Partners
can find this guide by going to Cisco Partner Central, Voice & Conferencing
page, Technical Resources section. Use the following URL:
www.cisco.com/web/partners/sell/smb/products/
voice_and_conferencing.html#~vc_technical_resources
This section includes the following topics:
•
“Configuring a Line Interface for ITSP Service,” on page 58
•
“Configuring a Line Interface for a SPA400 (PSTN or Voice Mail),” on page 60
•
“Configuring Call Capacity for a Line Interface,” on page 63
Configuring a Line Interface for ITSP Service
STEP 1
Start Internet Explorer, and then enter the IP address of the SPA9000. Click Admin
Login and then click Advanced.
STEP 2
Click
Voice tab > Line
N
, where
N
represents the line interface number.
STEP 3
From the
Line Enable
drop-down list, choose
yes
.
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