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TANDBERG Gatekeeper User Manual

Other manuals for Gatekeeper: Installation Instructions, User Manual, User Manual
Manual is about: TANDBERG Gatekeeper User Guide

Summary of Gatekeeper

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    Tandberg gatekeeper user manual software version n5.0 d13381.05 this document is not to be reproduced in whole or in part without permission in writing from:.

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    Tandberg gatekeeper user manual trademarks and copyright copyright 1993-2006 tandberg asa. All rights reserved. This document contains information that is proprietary to tandberg asa. No part of this publication may be reproduced, stored in a retrieval system, or transmitted, in any form, or by any ...

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    Tandberg gatekeeper user manual environmental issues thank you for buying a product which contributes to a reduction in pollution, and thereby helps save the environment. Our products reduce the need for travel and transport and thereby reduce pollution. Our products have either none or few consumab...

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    Tandberg gatekeeper user manual tandberg products put on the market after august 2005 are marked with a crossed- out wheelie bin symbol that invites you to use those take-back systems. Please contact your local supplier, the regional waste administration or http://www.Tandberg.Net/recycling if you n...

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    Tandberg gatekeeper user manual environmental issues thank you for buying a product which contributes to a reduction in pollution, and thereby helps save the environment. Our products reduce the need for travel and transport and thereby reduce pollution. Our products have either none or few consumab...

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    Tandberg gatekeeper user manual operator safety summary for your protection please read these safety instructions completely before you connect the equipment to the power source. Carefully observe all warnings, precautions and instructions both on the apparatus and in these operating instructions. K...

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    Tandberg gatekeeper user manual dust • do not operate the apparatus in areas with high concentration of dust. Vibration • do not operate the apparatus in areas with vibration or place it on an unstable surface. Power connection and hazardous voltage • the product may have hazardous voltage inside. N...

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    Tandberg gatekeeper user manual – if the apparatus seems to be overheated. – if the apparatus emits smoke or abnormal odor. – if the apparatus fails to operate in accordance with the operating instructions accessories • use only accessories specified by the manufacturer, or sold with the apparatus. ...

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    Tandberg gatekeeper user manual contents 1 introduction 1 1.1 tandberg gatekeeper overview . . . . . . . . . . . . . . . . . . . . . . . . . . 2 2 installation 3 2.1 precautions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2.2 unpacking . . . . . . . . . . . . . . ...

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    Tandberg gatekeeper user manual 10 third party call control 37 10.1 placing a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 10.2 transferring a call . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37 10.3 disconnecting a call . . . . . . ...

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    Tandberg gatekeeper user manual x.

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    Tandberg gatekeeper user manual 1 introduction this user manual is provided to help you make the best use of your tandberg gatekeeper. The main features of the tandberg gatekeeper are: • ipv4 and ipv6 support • supports up to 100 neighboring zones. • flexible zone configuration with prefix and suffi...

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    Tandberg gatekeeper user manual 1.1 tandberg gatekeeper overview on the front of the gatekeeper there are three lan interfaces, a serial port (data 1) and an led showing the power status of the system. The lan 1 interface is used for connecting the system to your network, lan interface 2 and 3 are d...

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    Tandberg gatekeeper user manual 2 installation 2.1 precautions • never install communication equipment during a lightning storm. • never install jacks for communication cables in wet locations unless the jack is specifically designed for wet locations. • never touch uninstalled communication wires o...

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    Tandberg gatekeeper user manual 2.2.1 installation site preparations • make sure that the gatekeeper is accessible and that all cables can be easily connected. • for ventilation: leave a space of at least 10cm (4 inches) behind the gatekeeper’s rear and 5cm (2 inches) on the sides. • the room in whi...

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    Tandberg gatekeeper user manual then switch the power switch button on the back of the unit to ‘1’. On the front of the chassis you will see the power led being lit. 2.6 gatekeeper initial configuration the tandberg gatekeeper requires some configuration before it can be used. This must be done usin...

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    Tandberg gatekeeper user manual welcome to tandberg gatekeeper release n5.0 sw release date: 2006-06-15 ok 10. Login with username admin and your password. 11. Review other system settings. You may want to set the following: (a) the name of the gatekeeper. This is used to identify the gatekeeper by ...

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    Tandberg gatekeeper user manual 3 getting started 3.1 system administration to configure and monitor the tandberg gatekeeper you can either use the web interface or a command line interface. The command line interface is available over ssh, telnet and through the serial port. By default administrati...

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    Tandberg gatekeeper user manual 3.1.2 root account the gatekeeper provides a root account with the same password as the admin account. This account should not be used in normal operation, and in particular system configuration should not be conducted using this account: use the admin account instead...

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    Tandberg gatekeeper user manual figure 3: selecting ip protocol by default,if you attempt to register an alias which has already been registered with the system, your registration will be rejected. This helps you to identify when two users have a conflicting alias. In some deployments an endpoint ma...

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    Tandberg gatekeeper user manual location request to all the other gatekeepers and border controllers on the system. Whilst conceptually simple, this sort of flat dial plan does not scale very well: adding or moving a gatekeeper requires changing the configuration of every gatekeeper and border contr...

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    Tandberg gatekeeper user manual figure 4: adding a new zone 3.6 alternate gatekeepers alternate gatekeeper support is provided to increase the reliability of your deployment. If one gatekeeper becomes unavailable, perhaps due to a network or power outage, another will be used as an alternate. Altern...

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    Tandberg gatekeeper user manual figure 5: alternate gatekeeper configuration 3.7 call signaling when an endpoint wants to call another endpoint it presents the address it wants to call to the gatekeeper using a protocol knows as ras. The gatekeeper tries to resolve this address and supplies the call...

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    Tandberg gatekeeper user manual figure 6 illustrates the process the gatekeeper performs when receiving call requests: when one endpoint calls another, the gatekeeper is involved in locating the called endpoint. By default, once the endpoint is located, the gatekeeper takes no further part in the ca...

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    Tandberg gatekeeper user manual figure 6: location decision flow diagram 14.

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    Tandberg gatekeeper user manual 4 unregistered endpoints although most calls are made between endpoints registered with a gatekeeper or border controller, it is sometimes necessary to place a call to or from an unregistered endpoint. 4.1 calling from an unregistered endpoint an unregistered endpoint...

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    Tandberg gatekeeper user manual direct : this setting will allow the endpoint to make the call to the unknown ip address without querying any neighbors. The call setup would occur just as it would if the far end were registered directly to the local system. Indirect : upon receiving the call the gat...

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    Tandberg gatekeeper user manual 5 bandwidth control the tandberg gatekeeper allows you to control endpoints’ use of bandwidth on your network. Figure 8 shows a typical deployment: a broadband lan, where high bandwidth calls are acceptable, a pipe to the internet with restricted bandwidth, and two sa...

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    Tandberg gatekeeper user manual figure 9: configuring a subzone links may be configured through the web interface on the gatekeeper configuration → links page, or through the command line using the following commands: xconfiguration links link [1..100] name xconfiguration links link [1..100] node1 n...

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    Tandberg gatekeeper user manual figure 10: configuring a pipe pipes may be shared between one or more links. This is used to model the situation where a site communicates with several other sites over the same broadband connection to the internet. Each link may have up to two pipes associated with i...

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    Tandberg gatekeeper user manual xconfiguration gatekeeper downspeed percall mode: xconfiguration gatekeeper downspeed total mode: 20

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    Tandberg gatekeeper user manual 5.1 bandwidth control and firewall traversal when a border controller and gatekeeper are being used to traverse a firewall, an additional zone and subzone come into use. The traversal zone is used to represent the zone containing the border controller this gatekeeper ...

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    Tandberg gatekeeper user manual figure 13: network deployment with firewalls figure 14: border controller example configuration figure 14 shows how the border controller could be configured for the deployment in figure 13. The introduction of the firewalls means that there is no longer any direct co...

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    Tandberg gatekeeper user manual shown in figure 15. Figure 15: gatekeeper example configuration all of the endpoints in the enterprise will be assigned to the default subzone. The traversal subzone controls traversal traffic flowing through the gatekeeper, whilst the traversal zone controls all traf...

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    Tandberg gatekeeper user manual 6 registration control the tandberg gatekeeper can control which endpoints are allowed to register with it. Two separate mechanisms are provided: a simple registration restriction policy and an authentication process based on user names and passwords. It is possible t...

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    Tandberg gatekeeper user manual xconfiguration gatekeeper registration allowlist xconfiguration gatekeeper registration denylist 6.2 authentication the tandberg gatekeeper can use a user name and password based challenge-response scheme to permit registrations. For details of how to configure your e...

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    Tandberg gatekeeper user manual 6.2.2 authentication using an ldap server the authentication information can be obtained from an ldap server. The directory on the ldap server should be configured to implement the itu h.350 specification to store h.235 credentials for devices that the gatekeeper comm...

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    Tandberg gatekeeper user manual 6.2.4 securing the ldap connection with tls the traffic between the gatekeeper and the ldap server can be encrypted using transport layer security (tls). To use tls, the ldap server must have a valid certificate installed so that the gatekeeper can verify the server’s...

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    Tandberg gatekeeper user manual 7 uri dialing 7.1 making a call using uri dialing if an alias is not located in the gatekeeper’s list of registrations, it may attempt to find an authoritative gatekeeper through the dns system. Uri dialing makes it easier for endpoints registered with different gatek...

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    Tandberg gatekeeper user manual figure 18: configuring ip interface been used to locate the gatekeeper. Depending on which was used, the received uri could be in one of three forms: • user@10.0.0.1 • user@srv.Record.Domain.Name • user@a.Record.Domain.Name each of these should be able to discover an ...

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    Tandberg gatekeeper user manual the gatekeeper supports two types of service record as defined by h.323 annex o. These are location and call, with service set to h323ls and h323cs respectively. In our case service is defined by the h.323 protocol suite to be h323ls and proto is udp . Name correspond...

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    Tandberg gatekeeper user manual 8 enum dialing enum provides another dns based dialing scheme. Users dial an e.164 number — a telephone number — which is converted in to an h.323 uri by the dns system. The rules for uri dialing are then followed to place the call. This allows you to retain the flexi...

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    Tandberg gatekeeper user manual figure 19: setting the enum zone ;; order flag preference service regex replacement in naptr 10 100 "u" "e2u+h323" "!^.*$!H323:recipient@example.Com!" . Order (10) and preference (100) determine the order in which naptr records will be processed: lowest order first, w...

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    Tandberg gatekeeper user manual 9 example traversal deployments 9.1 simple enterprise deployment figure 20: simple enterprise deployment figure 20 shows a typical enterprise deployment. Endpoints 1001, 1002 and a gatekeeper are deployed on a private network, separated from the public network by a fi...

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    Tandberg gatekeeper user manual • set example.Com as the domain name you are using on both the gatekeeper and border controller. • update the dns entry for example.Com with an a record representing the border controller and an srv record which returns the border controller’s a record as described in...

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    Tandberg gatekeeper user manual figure 22: dialing a public ip address in order to achieve this: • within the gatekeeper configuration — set ”calls to unknown ip addresses” to indirect. This setting will force the gatekeeper to forward calls to any ip address it does not have locally registered to t...

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    Tandberg gatekeeper user manual • from an endpoint in enterprise a, dial the full h.323 uri. For example, ben@enterpriseb.Com. Border controller b is registered in dns as responsible for enterprise b and will receive the incoming call and route it accordingly. Uri dialing will send all queries for a...

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    Tandberg gatekeeper user manual 10 third party call control the gatekeeper provides a third party call control api which enables you to place calls or initiate a blind transfer of an existing call. The api is provided through the command line interface. 10.1 placing a call xcommand dial may be used ...

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    Tandberg gatekeeper user manual where index is the call index as reported by xstatus calls 38.

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    Tandberg gatekeeper user manual 11 call policy your tandberg gatekeeper allows you to set up policy to control which calls are allowed and even redirect selected calls to different destinations. You specify this policy by uploading a script written in the call processing language (cpl). Each time a ...

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    Tandberg gatekeeper user manual subfield the following table gives the definition of subfields for each alias type, if a subfield is not specified for the alias type being matched then the not-present action will be taken. Address-type for all alias types the address-type subfield is the string h323...

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    Tandberg gatekeeper user manual the not-present node is executed when the address specified in the address-switch was not present in the call setup message. This form is most useful when authentication is being used. With authentication enabled the gatekeeper will only use authenticated aliases when...

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    Tandberg gatekeeper user manual 11.3 unsupported cpl elements the gatekeeper does not currently support the following elements that are described in the cpl rfc. If an attempt is made to upload a script containing any of the following elements an error message will be generated and the gatekeeper wi...

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    Tandberg gatekeeper user manual 11.4.3 call redirection redirect all calls to user ”barney” to voicemail. 43.

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    Tandberg gatekeeper user manual 12 logging the gatekeeper provides logging for troubleshooting and auditing purposes. The event log may be viewed from the command line by using the eventlog command, specifying the number of lines to display. Alternatively the web page system status → event log may b...

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    Tandberg gatekeeper user manual 12.3 event levels events are classified by importance as detailed in the table below. Level 1 is considered the most important. The system has a configured logging level. Events of level numerically equal to and lower than the configured logging level are recorded in ...

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    Tandberg gatekeeper user manual table 2: level 1 events (continued) event description registration removed a registration has been removed by the gate- keeper/border controller. The reason event parameter specifies the reason why the regis- tration was removed. This is one of: • authentication chang...

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    Tandberg gatekeeper user manual event description outgoing message an outgoing message has been sent 12.4.1 event data each event will have associated data fields. Fields are listed below in the order in which they appear in the log message. Table 4: event data field description applicable events pr...

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    Tandberg gatekeeper user manual table 4: event data (continued) field description applicable events src-ip specifies the source ip ad- dress (the ip address of the device attempting to estab- lish communications). The source ip is recorded in the dotted decimal format: (num- ber).(number).(number).(...

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    Tandberg gatekeeper user manual table 4: event data (continued) field description applicable events dst-alias • if present, the first h.323 alias associated with the recipient of the message • if present, the first e.164 alias associated with the recipient of the message • registration accepted • re...

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    Tandberg gatekeeper user manual 13 software upgrade software upgrade can be done in one of two ways: 1. Using a web browser (http/https). 2. Using secure copy (scp). Note to upgrade the gatekeeper, a valid release key and software file is required. Contact your tandberg representative for more infor...

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    Tandberg gatekeeper user manual • when the upload is completed you should see the following: • press restart. You should see a confirmation window: • the system will then perform a second reboot to restore system parameters. After 3–4 minutes, the gatekeeper is ready for use. 13.2 upgrading using sc...

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    Tandberg gatekeeper user manual scp s42000n40.Tar.Gz root@10.47.8.247:/tmp/tandberg-image.Tar.Gz • enter password when prompted. • wait until the software has installed completely. This should not take more than two minutes. • reboot the system. After about four minutes the system will be ready to u...

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    Tandberg gatekeeper user manual 14 command reference this chapter lists the basic usage of each command. The commands also support more advanced usage, which is outside the scope of this document. 14.1 status the status root command, xstatus , returns status information from the gatekeeper. To list ...

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    Tandberg gatekeeper user manual 14.1.3 externalmanager xstatus externalmanager returns information about the external manager. The external manager is the remote system (such as the tandberg management system (tms)) used to manage the endpoints and network infrastructure. Address ip address of the e...

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    Tandberg gatekeeper user manual 14.1.8 ntp xstatus ntp reports the status of any connection to an ntp server. 14.1.9 pipes xstatus pipes xstatus pipes pipe n reports call and bandwidth information for all pipes on the system. 14.1.10 registrations xstatus registrations xstatus registrations registra...

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    Tandberg gatekeeper user manual 14.1.13 systemunit xstatus systemunit reports information about the system as follows: product name uptime systemtime timezone localtime software version software name software build release date number of calls supported number of registered endpoints and services su...

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    Tandberg gatekeeper user manual 14.2.1 authentication configuration parameters relating to how an endpoint authenticates itself with the gatekeeper. Xconfiguration authentication credential [1..1000] name: specifies the username of a credential in the local authentication database. Xconfiguration au...

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    Tandberg gatekeeper user manual 14.2.4 gatekeeper commands under the gatekeeper node control aspects of the systems operation relating to its operation as an h.323 gatekeeper. Xconfiguration gatekeeper alternates monitor: controls whether or not alternate gatekeepers are periodically interrogated to...

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    Tandberg gatekeeper user manual determines whether or not the system will attempt to down-speed a call if there is insufficient per-call bandwidth configured to fulfill the request. The default is on . Xconfiguration gatekeeper downspeed total mode: determines whether or not the system will attempt ...

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    Tandberg gatekeeper user manual 14.2.5 http/https command under the http and https nodes control web access to the gatekeeper. Xconfiguration http mode: enables/disables http support. You must restart the system for changes to take effect. The default is on . Xconfiguration https mode: enables/disab...

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    Tandberg gatekeeper user manual this parameter is only used when attempting to resolve server addresses such as ldap servers, ntp servers etc. It plays no part in uri dialing: see xconfiguration gatekeeper localdomain 61.

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    Tandberg gatekeeper user manual 14.2.7 ldap parameters under the ldap node control the gatekeeper’s communication with an ldap server. Xconfiguration ldap encryption: sets the encryption mode to be used on the connection to the ldap server. The default is off . Xconfiguration ldap password: sets the...

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    Tandberg gatekeeper user manual 14.2.10 ntp xconfiguration ntp address: sets the ip address of the ntp server to be used when synchronizing system time. Accurate timestamps play an important part in authentication, helping to guard against replay attacks. 14.2.11 option key xconfiguration option [1....

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    Tandberg gatekeeper user manual 14.2.14 session xconfiguration session timeout: controls how long an adminstration session (https, telnet or ssh) may be inactive before the session is timed out. A value of 0 turns session time outs off. The default is 0 . You must restart the system for changes to t...

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    Tandberg gatekeeper user manual xconfiguration subzones defaultsubzone bandwidth total mode: whether or not the default subzone is enforcing per-call bandwidth restrictions. None corresponds to no bandwidth available. Xconfiguration subzones traversalsubzone bandwidth percall limit: per-call bandwid...

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    Tandberg gatekeeper user manual 14.2.18 systemunit xconfiguration systemunit name: the name of the unit. Choose a name that uniquely identifies the system. Xconfiguration systemunit password: specify the password of the unit. The password is used to login with telnet, http(s), ssh, scp, and on the s...

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    Tandberg gatekeeper user manual xconfiguration zones traversalzone gatekeeper hopcount: specifies the hop count to be used when originating an lrq. Xconfiguration zones traversalzone match [1..5] mode: the zone match mode determines when an lrq will be sent to gatekeepers in the zone. If the mode is...

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    Tandberg gatekeeper user manual xconfiguration zones zone [1..100] hopcount: specifies the hop count to be used when originating an lrq. Xconfiguration zones zone [1..100] monitor: if zone monitoring is enabled, an lrq will be periodically sent to the zone gatekeeper. If it fails to respond, that ga...

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    Tandberg gatekeeper user manual 14.3 command the command root command, xcommand , is used to execute commands on the gatekeeper. To list all xcommands type xcommand ? To get usage information for a specific command, type xcommand ? 14.3.1 allowlistadd xcommand allowlistadd adds an entry to the allow...

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    Tandberg gatekeeper user manual 14.3.6 credentialadd xcommand credentialadd adds the given username and password to the local authentication database. 14.3.7 credentialdelete xcommand credentialdelete deletes the indexed credential. 14.3.8 defaultlinksadd xcommand defaultlinksadd restores the factor...

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    Tandberg gatekeeper user manual 14.3.11 denylistdelete xcommand denylistdelete removes the pattern from the deny list at the specified index. 14.3.12 dial xcommand dial callsrc: calldst: bandwidth: places call halves out to src and dst , joining them together. 14.3.13 disconnectcall xcommand disconn...

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    Tandberg gatekeeper user manual 14.3.16 findregistration xcommand findregistration returns information about the registration associated with alias . Alias must be registered on the gatekeeper on which the command is issued. See also xcommand locate 14.3.17 linkadd xcommand linkadd adds a new link t...

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    Tandberg gatekeeper user manual 14.3.23 pipedelete xcommand pipedelete deletes the indexed pipe. 14.3.24 removeregistration xcommand removeregistration removes the specified registration. 14.3.25 subzoneadd xcommand subzoneadd adds and configures a new subzone. Name user assigned label for the subzo...

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    Tandberg gatekeeper user manual 14.4 history the history root command, xhistory , is used to display historical data on the gatekeeper. To list all xhistory commands type: xhistory ? To list all history data, type: xhistory to show a specific set of history data, type: xhistory xhistory calls xhisto...

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    Tandberg gatekeeper user manual xfeedback register status/ registers for feedback on changes in the chosen status, e.G.: xfeedback register status/calls to register for all status changes, use: xfeedback register status xfeedback register history/ registers for feedback on history, e.G.: xfeedback r...

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    Tandberg gatekeeper user manual 14.6.3 eventlog eventlog eventlog [n/all] displays the eventlog containing information about past events which may be useful for diagnostic purposes. N the number of lines from end of event log to dump. All dumps the whole event log. 14.6.4 license license provides ac...

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    Tandberg gatekeeper user manual a appendix: configuring dns servers in the examples below, we set up an srv record to handle h.323 uris of the form user@example.Com these are handled by the system with the fully qualified domain name of gatekeeper1.Example.Com which is listening on port 1719, the de...

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    Tandberg gatekeeper user manual as expected. Nslookup -querytype=srv h323ls. Udp.Example.Com and check the output. 78.

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    Tandberg gatekeeper user manual b appendix: configuring ldap servers b.1 microsoft active directory b.1.1 prerequisites these comprehensive step by step instructions assume that active directory is installed. For details on installing active directory please consult your windows documentation. The f...

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    Tandberg gatekeeper user manual objectclass: h323identity objectclass: h235identity communiqueid: comm1 h323identityh323-id: meetingroom1 h323identitydialeddigits: 626262 h235identityendpointid: meetingroom1 h235identitypassword: mypassword add the ldif file to the server using the command: ldifde -...

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    Tandberg gatekeeper user manual b.2.2 installing the h.350 schemas the following itu specification describes the schemas which are required to be installed on the ldap server: h.350 directory services architecture for multimedia conferencing - an ldap schema to repre- sent endpoints on the network. ...

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    Tandberg gatekeeper user manual add the h.350 objects create an ldif file with the following contents: # meetingroom1 endpoint dn: communiqueid=comm1,ou=h350,dc=my-domain,dc=com objectclass: commobject objectclass: h323identity objectclass: h235identity communiqueid: comm1 h323identityh323-id: meeti...

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    Tandberg gatekeeper user manual c approvals the product has been approved by various international approval agencies, among others: csa and nemko. According to their follow-up inspection scheme, these agencies also perform production inspections at a regular basis, for all production of tandberg’s e...

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    Tandberg gatekeeper user manual d technical specifications system capacity 2500 registered traversal endpoints 100 traversal calls at 384 kbps 500 non-traversal calls 100 zones option keys may restrict the system to a lower capacity than specified above. Ethernet interfaces 3 x lan/ethernet (rj-45) ...

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    Tandberg gatekeeper user manual physical dimensions height: 4.35 cm (1.72 inches) width: 42.6 cm (16.8 inches) depth: 22.86 cm (9 inches) 1u rack mounted chassis hardware hardware mtbf: 80,479 hours power supply 250 watt 90–264v full range @47– 63 hz certification lvd 73/23/ec emc 89/366/ecc 85.

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    Tandberg gatekeeper user manual references [1] itu specification: h.235 security and encryption for h-series (h.323 and other h.245- based) multimedia terminals [2] itu specification: h.350 directory services architecture for multimedia conferencing [3] http://www.Ietf.Org/rfc/rfc2782.Txt [4] http:/...

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    Tandberg gatekeeper user manual e glossary alias the name an endpoint registers with the gatekeeper. Other endpoints can then use this name to call it. Arq, admission request an endpoint ras request to make or answer a call. Dns zone a subdivision of the dns namespace. Example.Com is a dns zone. E.1...

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    Index about, 75 account administrator, 7 root, 8 activedirectory, see ldap servers admission request, 87 alias, 8, 9, 24, 87 allowlist, 24, 59 allowlistadd, 69 allowlistdelete, 69 alternate gatekeeper, 10–11, 58, 67 authentication, 25–27, 42, 57, 63 and cpl, 39 credential, 57 mode, 57 backup, 8 band...

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    Tandberg gatekeeper user manual ldif, 79, 81 license, 76 link, 17, 18, 23 default, 70 localprefix, 59 location request, 87 logging event levels, 45 lookup, 32 lrq, 59 monitor alternate, 58 naptr record, 31–32 neighbor, 31 neighbor gatekeeper, 9–10, 19, 35, 36, 59 ntp, 63 openldap, see ldap servers o...

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    Tandberg gatekeeper user manual ldap, 57 mode, 57 ethernet speed, 57 externalmanager address, 57 path, 57 gatekeeper alternates, 58 autodiscovery, 58 callrouted, 58 callstounknownipaddresses, 12, 58 calltimetolive, 58 dnsresolution, 58 downspeed, 58, 59 forwardlocationrequests, 59 localdomain, 59 lo...