DEFINITY® IP Solutions
Voice-Quality Guidelines and
Installation/Administration Checklist
Issue 1
April 2000
Copyright © 2000 by Lucent Technologies. All rights reserved.
For trademark, re gulatory compliance, an d related legal informa tion, see the
copyright and legal notices section of this document.
Voice Quality Guidelines
Voice Quality Guidelines
This section gives recommendations for increasing voice quality in VoIP configurations
10/100 BaseT Although the TN802/B DEFINITY IP Interface technically supports 10/100 BaseT,
testing and field experience have determined that superior voice quality and stability
are achieved when the board is used at 10BaseT. Therefore, the IP Interface will be
preset to 10 BaseT at the factory. Since this application’s bandwidth needs are
minimal, Lucent recommends that customers leav e all IP Interface circuit packs set to
10 BaseT. This supersedes any information prev iously published, including custom er
documentation.
LAN and Remote
Access Parameters
Guidelines for LAN and remote access parameters that affect voice quality are
available from the Lucent Customer Support web site at: http:// support.lucent.com.
Note: These guidelines were not finalized at the time of publication of this
document — they will be inserted here in future releases.
Installation and Administration Checklist
This checklist provide a brief summary of the hardware installation and DEFINITY
administration required for IP Softphones and H.323 trunks.
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
Issue 1 April 2000 1
Installation and Administration Checklist
Hardware
Installation
Refer to Upgrades and Additions for R8.2si (or R8.2r), 555-233-122 (115), for
details on hardware installation.
Task
√
Prepare for Installation by checking the site facilities and DEFINITY
equipment shipment.
Connect cables
Connect modem
Set modem DIP switches
Connect to the Ethernet LAN
(If upgrading existing TN802 to TN802B, follow upgrade procedures)
Install the circuit packs
Administer C-LAN (TN799B)
Administer the IP Interface assembly (TN802B)
Test external connection to the LAN
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
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Installation and Administration Checklist
IP Softphone
administration
Refer to Administrator’s Guide, 555-233-506, for details on IP Softphone
administration.
For R8, there are two main types of DEFINITY IP Softphone applications — the
telecommuter application and the road-warrior application. The CentreVu IP Agent
is a variation of the telecommuter application.
Do the following tasks to administer IP Softphone applications.
Screen Task
√
Optional Features
(System Parameters
Customer Options)
Verify that the DEFINITY system is enabled for IP
Softphone use on the System P arameters Customer
Options screen.
Add a DCP station (or change an existing DCP
station) using the Station screen.
Station
For the road-warrior application only,
add an H.323 station.
Install the IP Softphone software on the user’s PC
for the telecommuter or the road-warrior
applications.
OR
Install the IP Agent software on the user’s PC for
the CentreVu IP Agent application.
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
Issue 1 April 2000 3
Installation and Administration Checklist
Enabling
Administration for
H.323 Tr unk
Screen Task Refer
√
Optional Features
(System Parameters
Customer Options)
Circuit Packs
Maintenance-Related
System Parameters
IP Parameters
Refer to DEFINITY Administrator’s Guide, (DAG) 555-233-506, and Administration
for Network Connectivity, (ANC) 555-233-504, for details on the enabling
administration.
A few customer options and circuit pack parameters must be properly set before you
can administer an H.323 trunk. Do the enabling administration using the screens
listed below.
To
Verify that the DEFINITY system is enabled for IP
DAG
Softphones. (The Optional Features screen must be
administered by the init lo gin.)
Administer the C-LAN and IP Interface assembly circuit packs
ANC
on the Circuit Packs screen.
Set threshold values for network performance on the
DAG
Maintenance-Related System Parameters screen for network
performance.
Enter the codec types on this screen in the order of preference
ANC
of usage.
Optionally, you can also use the Audio IP port number range
field to specify a block of port numbers to be used for audio
connections.
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
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Installation and Administration Checklist
H.323 Tr unk
Administration
Screen Task
√
Node Names
IP Interfaces
Ethernet Data
Module
Refer to Administration for Network Connectivity, 555-233-504, for details on the
H.323 trunk administration. Administer the H.323 IP trunks using the screens listed
below.
Enter a node name and IP address for each C-LAN and IP Interface
board on the local switch.
Enter a node name and IP address for the far-end gatekeeper for each
far-end node that the H.323 trunks on the local switch will connect to.
The far-end gatekeeper is a C-LAN board if the far-end is a DEFINITY
switch.
Enter the interface information for each C-LAN and each IP Interface
(TN802B) board.
Administer a data module screen, type ethernet, for each C-LAN board
on the switch.
(Sheet 1 of 2)
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
Issue 1 April 2000 5
Installation and Administration Checklist
Screen Task
√
Signaling Group
Tr unk Group
IP Media
Parameters
Create a signaling group for each H.323 trunk group.
NOTE: NCA TSCs need to be administered only if this signaling group
is to be used for DCS, AUDIX, MASI, or as Gateway. Administration of
TSCs is the same as in previous releases
Create trunk groups and assign each H.323 trunk to a trunk group.
Enter the types of codecs and their preferred order of use.
(Sheet 2 of 2)
DEFINITY® IP Solutions Voice-Quality
Guidelines and Installation/Administration Checklist
Issue 1 April 2000 6
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