NEC 124i Enhanced User manual

124i Enhanced

4 VoIP PCB

Installation Manual

20100

This manual has been developed by NEC America. It is intended for the use of its customers and service personnel, and

should be read in its entirety before attempting to install or program the system. Any comments or suggestions for improving

this manual would be appreciated. Forward your remarks to:

NEC America, Inc., Corporate Networks Group

4 Forest Parkway, Shelton, CT 06484

cng.nec.com

Nothing contained in this manual shall be deemed to be, and this manual does not constitute, a warranty of, or representation

with respect to, any of the Equipment covered. This manual is subject to change without notice and NEC America has no

obligation to provide any updates or corrections to this manual. Further, NEC America also reserves the right, without prior

notice, to make changes in equipment design or components as it deems appropriate. No representation is made that this

manual is complete or accurate in all respects and NEC America shall not be liable for any errors or omissions. In no event

shall NEC America be liable for any incidental or consequential damages in connection with the use of this manual. This

document contains proprietary information that is protected by copyright. All rights are reserved. No part of this document

may be photocopied or reproduced without prior written consent of NEC America.

Printed in U.S.A.

Table of Contents

92046INS01

◆

Table of Contents- 1

4VoIP PCB Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Hardware Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Programming Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Outgoing Calls – If Using a Gatekeeper . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Outgoing Calls – If Not Using a Gatekeeper. . . . . . . . . . . . . . . . . . . . . . . . 2

Configuration for IP Address Determination . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

How to Determine the Destination IP Address with ARS (Required if

Dialing More Than 4 Digits) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Dial Edit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Calling Party Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

F-Route Setting for IP Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Incoming Calls . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

DID Error Routing Settings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

VoIP PCB Setup Examples. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Conditions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Programming. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Firmware Upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Table of Contents

Table of Contents - 2

◆

92046INS01

Page 1

4VoIP PCB Overview

The 4 port VoIP PCB (P/N 92046) provide a means of connecting multiple i-Series systems together over an IP WAN. With the addition of

the VoIP PCB and using 124i Enhanced software version 2.01.00 or higher, it is now possible to place calls between i-Series systems using

VoIP and the Digital Networking features.Transmission of both voice and data over the same connection is now possible.This eliminates the

need for point-to-point connection between sites and allows the use of a shared public network such as Frame Relay or ATM.

Currently, the VoIP feature can provide:

●

Desk-to-desk calls between i-Series systems

- Trunk-to-trunk connections between sites

- Only DID call handling is supported

●

Ability to transfer intercom or trunk calls to an extension on another i-Series system

●

Ability to transfer intercom calls from a remote site to a local trunk on the system

●

Direct access or dial access to trunks at another i-Series site

●

i-Series Networking features (such as common voice mail with voice message indication)

●

Release ink Tie Trunk Transfer

Trunk release after transferring a call to another i-Series site

An extension user at one site can easily dial an extension at a remote i-Series telephone system. Calls are transported between systems using

the H.323 protocol with ISDN-like messages that contain information about the source of the call, the type of call and the destination of the

call. This call information is sent within a User-User Information element which is part of an H.223/H.225 packet.

VoIP call routing and control may be done with an external H.323 Gatekeeper. Each client is required to register with an H.323 Gatekeeper

and provide an IP address and telephone number to be used as an alias. From this information, the Gatekeeper constructs routing tables and

provides clients with directory services.When a Gatekeeper is installed, all routing and call initialization must be handled by the Gatekeeper.

The 124i Enhanced system will not be allowed to specify the destination IP address for a call if a Gatekeeper is installed.

When a Gatekeeper is not available, the 124i Enhanced must examine the dialed numbers and determine a routing method which may

include an IP address and an outgoing trunk group. The 124i Enhanced must be conﬁgured to use either F-Route orARS to translate a dialed

number into an IP address and select a route for a VoIP call.

A maximum of 5 VoIP PCBs may be installed in a system, but with the

following limitations.

The first cabinet can only have one VoIP PCB

installed and must be in slots 4-8. The second and third cabinets can

each have only two VoIP PCBs installed and must also be installed in

the last four slots in the cabinet slots 12-16 in the second cabinet,

slots 20-24 in the third cabinet).

All trunks ports on the same VoIP PCB must be assigned to the same

trunk group since incoming VoIP calls will select any idle port on the

PCB.

The VoIP PCB provides the following:

●

Run/Block switch for enabling/disabling the PCB

●

oad switch used for updating the PCB firmware

●

PCMCIA card slot for updating PCB firmware

●

DIN connector for diagnostics (no DIMU is required,

simply plug a terminal into the connector)

●

8-pin AN connector (CN10)

●

Status EDs for each VoIP port

●

Run ED indicates if PCB is functioning

VoIP PCB

CN10 Connector DIN Connector

oad Switch

Run ED

Status EDs

Run/Block Switch

Reset Switch

Page 2

Hardware Considerations

Each VoIP PCB must be associated with a VoIP PCB at another i-Series site. There must be a dedicated one-to-one relationship between

the VoIP PCBs across the network. For example, if a remote site has 2 VoIP PCBs, the main office must also have 2 PCBs for sending

and receiving VoIP calls to that site. Outgoing calls on a VoIP PCB must be routed only to the IP address of the associated VoIP PCB at

the remote site.

This is done to emulate the point-to-point connection provided by a T1 or PRI trunk. With this configuration, if all ports on the local

PCB are busy, then all ports on the associated remote VoIP PCB will also be busy. This is required in a system with multiple VoIP

PCBs to force overflow of outgoing calls to an alternate route (another VoIP PCB) if all ports at the remote site are busy.

Programming Considerations

Each VoIP PCB must be assigned to its own trunk group in

Program 0905 -Trunk Groups

. All ports on a VoIP PCB must be assigned

to the same trunk group.

When multiple VoIP PCBs are installed at a site, ARS or F-Route must be set up with alternate routes with each route sending calls to a

different outgoing trunk group (VoIP PCB). Outgoing calls to a particular VoIP PCB must use only the IP address of the associated VoIP

PCB at the remote site.

It is recommended that the hunting order (the order of the alternate route selection) be reversed at each site to reduce the chance of call

collisions.

Outgoing Calls — If Using a Gatekeeper

If a Gatekeeper is used, the 124i Enhanced must be programmed to use the Gatekeeper. All user-dialed digits for a VoIP call are sent to

the Gatekeeper which will set up and manage the call.

Some Gatekeepers accept overlap dial information - some do not. The 124i Enhanced system can enable either

Overlap

En Bloc

Sending

for each VoIP PCB (Program 0319 Item 1). This results in differences in the operation of outgoing calls.

●

Overlap Sending

Each time a user dials a digit, the dial information is sent to the Gatekeeper. This operation is just like using an analog

trunk.

●

En Bloc Sending

Dial information must be stored and then sent all at once. After dialing the digits for an outgoing call, the user must wait

for the inter-digit timer to expire before the digits are sent. The user may, however, press the # key to send the dialed digits

before the timer expires.

Outgoing Calls — If Not Using a Gatekeeper

A user is not allowed to seize the VoIP trunk manually because dialed digits cannot be sent directly to the VoIP trunk. An IP address

must be provided to route the call. This means that a user cannot press a trunk key or dial a trunk access code to seize a VoIP trunk.

To determine the destination IP address from the dialed digits, the 124i Enhanced system uses F-Route or ARS. These programs have

been modified to support VoIP. The following description shows how to determine an IP address.

How to Determine the Destination IP Address Using ARS or F-Route

This option must be used for reaching destinations such as a key telephone at a remote system without a Gatekeeper. The target destina-

tion will be specified by a local trunk group number, an IP address and the called party number.

Page 3

Configuration for IP Address Determination

In Program 0905, program all the VoIP trunks into the same group. This trunk group can then be selected in Program 0928 as a

route for a VoIP call.

Program 0905

ARS and F-Route can select the trunk group from the dialed digits for outgoing calls. The trunk group is part of the routing instructions

in Program 2101 (ARS Selection Table) or Program 2904 (F-Route Routing Table). If the trunk group number is between 101 and 126,

it indicates that an attempt should be make to route the call overVoIP. The last 2 digits of this trunk group number are used to select an

entry (table) in Program 0928. The system will choose one trunk from theVoIP trunk group and use the assigned IP address. The dialed

digits are edited by the appropriate dial treatment and stored in the called party number area in the Setup message.

Program 0928 is a table that assigns a VoIP trunk group and an IP address for a VoIP call. This address is the IP address for the

VoIP PCB at the remote location.

Program 0928

As a result of the programming shown in the table above, when trunk group 101 is selected by F-Route or ARS, the system will

choose an outgoing trunk port from trunk group 26 and the IP destination address used will be 192.168.0.1.

How to Determine the Destination IP Address with ARS (Required if Dialing More Than 4 Digits)

If you want to dial the phone number to reach an IP telephone when a Gatekeeper is not available, the ARS feature should be used.

ARS uses the 3-digit or 6-digit table to decide the trunk group to be used. An option is now available to convert the dialed digits to

an IP address.

If the ARS selection number is found by searching the 3 or 6-digit tables and the trunk group number in the Selection Routing

Table (Program 2101) is between 101 to 126, it indicates that the system should attempt to route the call using VoIP. The last 2 dig-

its of this trunk group number are used as the entry in Program 0928 to get the VoIP trunk group number and IP address.

If the VoIP trunk group number is NOT set to zero (0) in Program 0928, the system starts searching for the dialed digits in a section

of the Abbreviated Dial Table within the range defined in Program 0605. If a match is found, the associated entry in Program 0604

is a trunk group number that points to a table in Program 0928, which is used to get the VoIP trunk group and IP address. If no

match is found, the system uses the trunk group number in the Program 0928 table that was chosen by the ARS Routing Table. This

may be a trunk group number for a normal trunk group (without an IP address) or a VoIP trunk group (with an IP address).

VoIP trunk port 12345678

VoIP trunk group 26

Table VoIPTrunk Group IP Address

1 26 192.168.0.1

2 26 192.168.0.2

3 26 192.168.0.3

Page 4

VoIP Using ARS and No Gatekeeper

for Outgoing Calls

Placing an outgoing call, a user dials 9 (trunk access code). ARS starts.

The user dials a telephone number.

The inter-digit timer expires or the user presses #.

The system searches the ARS 6-Digit then the 3-Digit Table to find a selection number.

Is the trunk group field in Program

0928 blank or set to '0'?

The system searches for the

dialed digits in the Abbreviated

Dial Table IP Area (Program 0603)

within the search range (Program 0605).

Is a match found? Does the table have a

trunk group setting in

Program 0604?

Yes

Stop

The trunk group and IP

address in Program 0928

are used to route the call.

Stop

Start

The trunk group number from the Selection Route Table, Program 2101, is used for the call.

Is this a VoIP trunk group

number (101 to 126)? Use the last 2 digits of the

trunk group number as the

entry point to Program 0928.

Yes

The call is routed to the

indicated trunk group.

This is not a VoIP call. No

Is this a VoIP call (is there

IP address data?)

The VoIP call is routed

on the indicated IP trunk

using the IP address.

The call is routed using the CO

trunk group indicated.

Yes

Use the trunk group

as an entry point

to Program 0928.

Yes

Page 5

Dial dit

ARS and F-Route have the ability to edit dialed digits. The edited dial digits are placed in the called party number area of the Setup

message.This dialed digit editing may be required to match the numbering plan of the remote telephone equipment.

Calling Party Number

If you need to send the calling party number, use the following programs.

●

Program 0406 Item 80 ISDN Calling Party Number

●

Program1031 ISDN Calling Number for Extensions

●

Program 0925 Calling Number for ISDN Trunks

F-Route Setting for IP Address

The following example explains how to set up F-Route. With this programming, you can dial 401 to access another node and the IP

address would be 192.178.10.2.

Program the VoIP PCB Operating Mode

●

In 0319, assign the slot number in which the VoIP PCB is installed.

Program the Hardware Settings for the VoIP.

●

In 0153, set the following:

Item 1:

IP Address: System A = 192.178.10.1 System B = 192.178.10.2

Subnet Mask: 255.255.0.0

Default Gateway Address: 192.178.10.10

Item 5:

Fast Connect Mode: Fast Connect (Mode 2)

Program the VoIP Trunk Group.

●

In Program 0905, assign VoIP trunks to the same trunk group 10.

Start

VoIP Using F-Route and No Gatekeeper for

Outgoing Calls

To place an outgoing call, a user dials the

F-Route code plus the telephone number.

The system waits for the F-Route digits.

Does the outgoing trunk

group have IP settings in

Program 0928?

The system makes the call on a VoIP

trunk with the edited number by F-Route.

Stop Stop

The system follows the F-Route

programming or, if F-Route is not set,

the call is not completed.

Yes No

Page 6

Program the VoIP Trunk Group and IP address for Trunk Groups.

●

In Program 0928, set trunk group 1 for routing to a VoIP trunk.

Table (Entry Number) 1

VoIP Trunk Group Number: 10

IP Address: 192.178.10.2

Program F-Route.

●

Program 0501

Dial 4 — 1 digit — Type 9 (F-Route)

●

Program 2902 Flexible Numbering Plan ookup Table

Dial 4 — 3 digits — Entry No.1

Entry Number is defined by Program 2903.

●

Program 2903 Flexible Route Selection Table

Entry No.1 — Route Table No. 1

Route Table Number is defined by Program 2904.

●

Program 2904 Flexible Routing Tables VoIP

Route Table No. 1 — Trunk Group 101

VoIP Trunk Group 101 will point to Program 0928, table (entry) 1.

As a result, if a user dials the VoIP number 401, trunk group 101 is referred by F-Route. Then, the system checks the Program 0928 set-

ting and seizes a trunk from system trunk group 10. The call goes to address 192.178.10.2.

Special programming will be required if a remote system has two or more VoIP PCBs.

Incoming Calls

When an incoming call is detected, the VoIP PCB will be searched for an idle port on the VoIP PCB. An incoming call can be connected

to any of the ports on the PCB, so the trunk service type has to be the same for all the trunks on the same PCB.

Basic system settings are essentially the same as ISDN trunks. The routing programing is also the same. However, as incoming calls

may have a called party number, it is recommended that DID service type be used (Program 0901, Items 14-17 and 32-35 set to 3).

Incoming calls may not have a called party number or the number may not exist in the DID table. When this occurs, the DID Error Routing

will be used. Refer to the

i-Series Software Manual

, P/N 92000SWG**, for information on programming DID trunks.

DID rror Routing Settings

In the past, if a called party number did not exist in the Setup message, ISDN DID trunks would reject the calls. With the VoIP

H.323 incoming calls, DID error routing is used to handle the Setup message for calls without a called party number.

For example, DID Table Area #1 is being used, routing to trunk ring group 10.

●

Check the first DID table number in the DID table area (Program 1805).

The first table is 0001.

●

Program

’

for the DID intercepted call vacant number option (Program 1810).

Progra 1810 Table #0001 -> Set 1 for the ite 1

●

Program the DID Intercept Ring Group (Program 1809).

Progra 1809 DID Table Area #1 -> Set TRG 10

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