H3C XE 200 IP Bedienungsanleitung

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Table of Contents

Table of Contents

Chapter 1 Location Server Configuration...................................................................................1-1

1.1 Overview............................................................................................................................1-1

1.2 Functionality and Features ................................................................................................1-1

1.2.1 LS Functionality.......................................................................................................1-1

1.2.2 LS Features.............................................................................................................1-4

1.3 Basic Configurations..........................................................................................................1-4

1.3.1 Entering LS View.....................................................................................................1-5

1.3.2 Configuring Interface and Port Number ..................................................................1-5

1.3.3 Configuring Call Mode.............................................................................................1-5

1.3.4 Enabling/Disabling an LS........................................................................................1-6

1.3.5 Configuring Call-matching Criterion........................................................................1-6

1.3.6 Configuring Whether to Accept Requests from an Unknown Device ..................... 1-7

1.3.7 Configuring a PS Registered with an LS.................................................................1-7

1.3.8 Configuring a MS Registered with an LS................................................................1-8

1.3.9 Configuring a Gateway Registered with an LS.......................................................1-8

1.3.10 Configuring an Office on an LS...........................................................................1-16

1.4 Advanced Configurations.................................................................................................1-22

1.4.1 Enabling/Disabling Random Selection..................................................................1-22

1.4.2 Configuring a PS Registered with an LS...............................................................1-23

1.4.3 Configuring the Information about the Gateway Registered with an LS...............1-23

1.4.4 Configuring an Office Group on an LS..................................................................1-28

1.4.5 Configuring the Allowed Time Difference between LS and PS/MS......................1-31

1.4.6 Configuring Number Substitution..........................................................................1-31

1.5 Displaying and Debugging LS .........................................................................................1-31

Chapter 2 NAT/FW Tunnel Traversal...........................................................................................2-1

2.1 Overview............................................................................................................................2-1

2.1.1 Introduction to NAT.................................................................................................2-1

2.1.2 Introduction to Firewall............................................................................................2-2

2.1.3 NAT/FW Tunnel Traversal Function Provided by XE IP PBXs...............................2-3

2.2 Basic NAT/FW Tunnel Traversal Configuration.................................................................2-6

Chapter 3 Configuration Examples .............................................................................................3-1

3.1 Integrated Implementation of LS and H.323 Gatekeeper..................................................3-1

3.2 Separate Implementation of LS and H.323 Gatekeeper ...................................................3-3

3.3 Basic H.323 Routed Call Mode..........................................................................................3-6

3.4 Office Device Configuration...............................................................................................3-9

3.5 Integrated Implementation of LS and SIP Redirect Server .............................................3-15

3.6 Integrated Implementation of LS and SIP Proxy Server.................................................. 3-18

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Table of Contents

3.7 Separate Implementation of LS and SIP Proxy Server ................................................... 3-21

3.8 H.323 Terminal Communicating with SIP Terminal in Common Call Mode....................3-24

3.9 H.323 Terminal Communicating with SIP Terminal in Faststart Call Mode.....................3-28

3.10 Multiple Called Parties Simultaneously Ringing in a Hybrid Network............................3-30

3.11 Multiple Called Parties Orderly Ringing.........................................................................3-34

3.12 NAT/FW Tunnel Traversal Between Private and Public Networks................................ 3-38

3.13 NAT/FW Tunnel Traversal Between Two Private Networks..........................................3-43

Chapter 4 XE IP PBX Troubleshooting........................................................................................4-1

4.1 Troubleshooting H.323 Gatekeeper...................................................................................4-1

4.2 Troubleshooting SIP Servers.............................................................................................4-3

4.2.1 Troubleshooting SIP Proxy Server..........................................................................4-3

4.2.2 Troubleshooting SIP Registration Server................................................................4-6

4.2.3 Troubleshooting SIP Redirect Server......................................................................4-7

4.3 Troubleshooting LS............................................................................................................4-8

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

1-1

Chapter 1 Location Server Configuration

1.1 Overview

A location server (LS) stores device and number information, answers queries about

the information from a process server (PS), and manages the media server (MS).

Figure 1-1 shows the architecture of the XE IP PBXs.

Location Server

Process Server Media Server

Gatekeeper SIP Server

H.323 Gateway SIP User Agent

XE IP PBX Location Server

Process Server Media Server

Gatekeeper SIP Server

H.323 Gateway SIP User Agent

XE IP PBX

Figure 1-1 Architecture of the XE IP PBXs

A PS, LS and MS communicate with each other via call application interface (CAI)

proprietary protocol interface. After receiving a register request from a gateway (the

gateway in this manual refers to H.323 gateway and SIP user agent client, unless

otherwise noted), the PS exchanges such messages as query, response, notification,

and indication with the LS. And after receiving a call request from a gateway, the PS

queries the LS for number information through CAI message.

The device information on an LS is configured by an administrator, while the number

information on the LS is configured by an administrator or reported by gateways

through PS.

1.2 Functionality and Features

1.2.1 LS Functionality

zUniformly assigning number resources

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H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

1-2

Number resource is traditionally assigned at the gateway side, and this method is not

efficient. The feature of assigning number resource uniformly is designed to resolve this

problem. By design, each gateway has a factory-set port number. Bund with the

gateway’s ID, the port number is mapped to a number during configuration. By this

means, the LS can implement number assignment, making it easy for maintenance.

This feature supports only POTS (plain old telephone service) users.

zQuerying device information and sending a response

SIP Registrar or H.323 gatekeeper needs to gain the IP PBX’s device information from

LS when authenticating register requests from the IP PBX. It sends requests of

querying device information to LS, and the request carries gateway ID or address.

Then the LS returns device information to the SIP Registrar or H.323 gatekeeper by

sending a query response after the device information is retrieved.

zQuerying a number and sending a response

Before sending a session request to a called number, a SIP proxy server or H.323

gatekeeper needs the called information corresponding to the number. It sends number

query request to an LS, then the LS returns information corresponding to the number to

the SIP proxy server or H.323 gatekeeper by sending a query response after the

information is retrieved.

zConfiguring PS information

You must configure the following PS information on the LS: PS ID (SIPServer or H.323

gatekeeper), the number of the portwhere the PS receives RASpackets, the number of

the port where the PS receives SIP packets, the ID of the group to which the PS

belongs, heartbeat password, whether multiplexing is enabled, whether tunneling is

enabled, the relative capability value of the PS group, and the domain that the device

belongs to.

zQuerying PS information

By specifying a PS ID, you can query the information about the PS or list the

information about all PSs, including: IP address and port number, ID and the ID of the

group to which the PS belongs, heartbeat password, transmission mode for SIP

packets, and register status.

zConfiguring MS information

You need to configure MS information on the LS, including the MS ID, heartbeat

password and language type that the MS supports.

zConfiguring gateway information

You can configure the information of a gateway (SIP User Agent or H.323 gateway)

registered with an LS, which includes the following information: gateway identifier,

gateway type, whether a dynamic IP address is used, IP address and port number of

the gateway, IP address and port number of H.323 gateway call signaling, device status,

transport layer protocol of SIPUA, default route priority, static route number and priority,

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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whether authentication is enabled, authentication password, manufacturer information,

whether multiplexing is enabled, registering cycle, and so on.

Note:

If calling number hiding is configured on a gateway acting as a SIP user agent, services

related with the calling number may not work.

zQuery gateway information

To query the gateway information, you can provide the identifier of the gateway; also

you can list information about the gateway by device type.

zConfiguring office device information

You need to configure the information of an office device configured on an LS, which

includes: office device identifier, device type, device status, IPaddress and port number,

static route number, default route priority, and whether multiplexing is enabled.

zQuerying information about office device

To query the office device information, you can provide the identifier ofthe office device;

also you can list information about the office device by device type.

zConfiguring office group information

You need to configure the information of an office group on an LS, including office group

identifier, area code, domain to which the office group belongs, static route, number

substitution table, and so on.

zQuerying information about office group

You can query the information of an office group by the office group identifier.

zQuerying devices corresponding to a number

You can query the devices that support a specific number.

zEnabling/disabling LS functions

You can enable/disable an LS to meet different network requirements of PS and LS. If

the PS function and LS function are enabled on the same XE IP PBX, you must enable

the LS function. If the PS function and the LS function are enabled on different XE IP

PBXs, you must disable LS function on the XE IP PBX serving as PS. If LS function was

enabled on the PS IP PBX and now you have disabled it, all the dynamic information

record will be lost on the LS, and new registrations and calls will fail, but the calls that

have already been set up will not be affected, and the LS function should be enabled on

the XE IP PBX serving as the LS.

zSpecifying call processing method

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H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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You can specify the call mode (redirect call mode or routed call mode) for SIP calling

or H.323 calling on the LS. In the redirect call mode, the PS registered with the LS

works in redirect mode; and in the routed call mode, the PS works in proxy mode.

Note:

When the SIP call mode is adopted, if CLIR (calling line identification restriction) is

enabled on the gateway, services that related with calling line may work improperly.

zQuerying statistics information about an LS

You can query the statistics information about an LS, including the statistics about the

messages received/transmitted by internal and external modules, and error count.

1.2.2 LS Features

The LS supports:

zNetworking with H3C’s SIP Server and H.323 gatekeeper

zNetworking with the H.323 gatekeeper from other vendors

zManagement on SIP Server or H.323 gatekeeper

zNetworking with H3C’s SIP devices and H.323 devices

zDynamic IP gateways

zManagement on gateways (including SIP user agent and H.323 gateway)

zCAI proprietary protocol

zWhen the XE 200 IP PBX functions as an LS, up to 1600 gateways, 3200

subscriber numbers and 3200 routes can be configured on the XE 200; at most

eight PSs can be cascaded.

zWhen the XE 2000 IP PBX functions as an LS, up to 16000 gateways, 32,000

subscriber numbers and 32,000 routes can be configured on the XE 2000; at most

eight PSs can be cascaded.

1.3 Basic Configurations

The following sections describe the basic configuration tasks:

zEntering LS View

zConfiguring Interface and Port Number

zConfiguring Call Mode

zEnabling/Disabling an LS

zConfiguring Call-matching Criterion

zConfiguring Whether to Accept Requests from an Unknown Device

zConfiguring a PS Registered with an LS

zConfiguring a MS Registered with an LS

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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zConfiguring a Gateway Registered with an LS

zConfiguring an Office on an LS

1.3.1 Entering LS View

Before configuring the LS, you need to enter LS view first.

Perform the following configuration in system view.

Table 1-1 Enter LS view

Operation Command

Enter LS view location-server

1.3.2 Configuring Interface and Port Number

When XE IP PBX is configured as an LS, you must configure the IPaddress of the LS to

that of the Ethernet interface of the XE IP PBX and specify an Ethernet interface that

will be used. By default, the Ethernet interface for XE200 is “ethernet 0/0” (for XE2000 it

is “GigabitEthernet 0/0”).

Caution:

If you configure an LS on a PS to work in remote mode, the IP address and the port

number of the remote LS must be identical to the local ones.

Perform the following configuration in LS view.

Table 1-2 Configure the interface and port number used by the LS

Operation Command

Configure the interface and port number

used by the LS ls-config interface interface-type

slot-number [ port port ]

Restore the default configuration undo ls-config

1.3.3 Configuring Call Mode

Call mode refers to the way PS works under the administration of an LS, including

routed mode and redirect mode. The default call mode of a SIP Server or a gatekeeper

is routed mode. You can configure the call mode of the gatekeeper and the SIP Server

respectively. The PS transmits information between the calling party and the called

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H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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party, and the call is placed under the control of the PS and the LS. In redirect mode,

the PS directly responds with the IP address ofthe called party to the calling party (if the

IP address of the called party is stored in the LS), and then the calling party calls the

called party.

Note:

For networks containing both H.323 and SIP devices, you need toset call mode of both

SIP Server and gatekeeperas “routed” to achieve interworking between SIP and H.323

terminals.

Perform the following configuration in LS view.

Table 1-3 Configure call mode

Operation Command

Configure call mode call-mode {h323 |sip }{redirect |routed }

Restore the default call mode undo call-mode {h323 |sip }

1.3.4 Enabling/Disabling an LS

An LS is disabled by default. You need to enable an LS to implement the functions it

provides.

Perform the following configuration in LS view.

Table 1-4 Enable/disable an LS

Operation Command

Enable an LS start

Disable an LS stop

1.3.5 Configuring Call-matching Criterion

This command is used to configure call-matching criterion for called numbers.

Perform the following configuration in LS view.

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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Table 1-5 Configure call-matching criterion

Operation Command

Configure the longest number at higher

priority policy select-rule number-first

Configure the priority number at higher

priority policy select-rule priority-first

1.3.6 Configuring Whether to Accept Requests from an Unknown Device

The command is used to configure whether to accept requests from an unknown

device.

Perform the following configuration in LS view.

Table 1-6 Configure whether to accept requests from an unknown device

Operation Command

Configure to enable accepting requests

from an unknown device policy unknown-device-admission

enable

Configure to disable accepting requests

from an unknown device policy unknown-device-admission

disable

1.3.7 Configuring a PS Registered with an LS

When acting as an LS, an XE IP PBX can manage multiple PSs. You must configure an

IP address and a heartbeat password for each managed PS on the LS.

To configure managed PSs, you must enter LS-PS view first, where IP addresses and

heartbeat passwords are configured.

I. Adding a PS or entering a PS view

If a specific LS-PS view already exists, you can enter it directly; if not, you must create

a new PS first, and then enter the corresponding LS-PS view.

Perform the following configuration in LS view.

Table 1-7 Add/delete a PS or enter a PS view

Operation Command

Add a PS or enter a PS view process-server device-id

Delete a specified PS or all PSs undo process-server {device-id | all }

Operation Manual – Location Server Configuration

H3C XE 200/2000 IP PBX Chapter 1 Location Server Configuration

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Note:

In the actual network configuration, the IDs for all gateway(s), PS(s) and office device(s)

should be different.

II. Configuring a heartbeat password

The LS listens to the keepalive status message periodically sent by the PS to learn the

PS’s keepalive status. To ensure a proper connection between the LS and the PS, the

heartbeat password of the LS must be identical to that of the PS.

Perform the following configuration in LS-PS view.

Table 1-8 Configure the heartbeat password

Operation Command

Configure the heartbeat password heartbeat password password

Restore the default heartbeat password undo heartbeat password

1.3.8 Configuring a MS Registered with an LS

For configuration details, refer to the “Configuring MS Device Information in LS View”

part of module “Media Server Operation”.

1.3.9 Configuring a Gateway Registered with an LS

H.323 Gateway and SIP User Agent are both gateways, which connect to user phones

or PBXs and are responsible for the conversion between different signaling protocols

and media formats. The LS records information about these gateways for the PSs.

To configure gateways, you must create an LS-GW view first. You can perform the

following:

zAdding a gateway or entering a gateway view

zConfiguring the type of a gateway

zSpecifying whether a gateway uses a dynamic IP

zConfiguring the IP address of a gateway

zConfiguring the port number of a gateway

zConfiguring the IPv4 address of the call signaling for a gateway

zConfiguring the call signaling port of a gateway

zConfiguring the status of a gateway

zConfiguring the transport layer protocol used by SIP UA

zConfiguring the default route number priority of a gateway

zConfiguring the static route number of a gateway

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