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Basic Concepts
SIP Servers
SIP servers manage all SIP calls in the network, therefore they are the main component of an IP PBX system.
Depending on the environment and the needs of the SIP-based IP-PBX phone system, there are four types of SIP servers that can be used with the Mediatrix units.
- Registrar host: receives REGISTER requests and places the information in the location service for the domain it handles
- Messaging host: receives MWI SUBSCRIBE requests and places the information in the location service for the domain it handles.
- Proxy host: An entity that acts as both a server and a client for the purpose of making requests on behalf of other clients. It is the final destination of the SIP requests.
- Outbound proxy host: A proxy that receives requests from a client, even though it may not be the server resolved by the Request-URI. It is an intermediate step before reaching the proxy host.
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Important Information to Know Before Using SIP Servers
Servers
- The registrar and proxy SIP hosts must have one of the following formats:
- IP address
- IP address: port number, for example:192.168.0.5:5060
- IP address: 0 where "0" indicates the default port 5060 or 5061 in secure mode.
- FQDN
- If any of the SIP server parameters corresponds to a domain name that is bound to a SRV record, the corresponding port must be set to 0 for the unit to perform SRV type DNS requests (as per RFC 3263). Otherwise, the unit will not use DNS SRV requests, but will rather only use Type A requests because it does not need to be specified which port to use.
- All SIP servers identified by a single FQDN are considered by a trunk gateway as having a synchronised state.
- When the destination of a SIP server is an FQDN, each SIP transaction is possibly sent to a different IP address, depending on the DNS query result.
- The outbound SIP proxy server is enabled only if the IP address is valid (i.e., not 0.0.0.0:0). Setting the address to 0.0.0.0:0 or leaving the field empty disables the outbound proxy server.
- The outbound proxy address is never included in the SIP packets, it is only used as a physical network destination for the packets.
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Basic Tasks
Configuring the Default Registrar Host

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Configuring the Default Messaging Server Host

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Configuring the Default Proxy Host

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Configuring the Default Outbound Proxy Host
- Go to SIP/Servers.
- In the Default Servers table, in the Proxy Host field indicate the server IP address or FQDN to use for all gateways.
- In the Outbound Proxy Host field, indicate the server IP address or FQDN to use for this gateway.
- Click Apply.
- Click restart required services, located at the top of the page.

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Assigning a Specific Registrar Host to a Gateway
You can assign a specific Registrar Server to the default gateway, or to a gateway you have created.
- Go to SIP/Servers.
- In the Registrar Servers table, from the Gateway Specific drop down located on the same row as local, select Yes.
- In the Registrar Host field, indicate the server IP address or FQDN.
- Click Apply.

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Assigning a Specific Messaging Server Host to a Gateway
You can assign a specific Messaging Server to the default gateway, or to a gateway you have created.
- Go to SIP/Servers.
- In the Messaging Servers table, from the Gateway Specific drop down select Yes to assign a specific messaging server to the gateway.
- In the Messaging Server Host field, indicate the IP address: Port number to use.
- Click Apply.
- Click restart required services located at the top of the page.

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Assigning a Specific Proxy Host to a Gateway
You can assign a specific Registrar Server to the default gateway, or to a gateway you have created.
- Go to SIP/Servers.
- In the Proxy Servers table, from the Gateway Specific drop down list located next to the gateway you wish to assign a specific Proxy SIP server, select Yes.
- In the Proxy Host field, indicate the server IP address or FQDN.
- Click Apply.

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Assigning a Specific Outbound Proxy Host to a Gateway
You can assign a specific Registrar Server to the default gateway, or to a gateway you have created.
- Go to SIP/Servers.
- In the Registrar Servers table, from the Gateway Specific drop down located on the same row as local, select Yes.
- In the Outbound Proxy Host field, indicate the server IP address or FQDN.
- Click Apply.
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Avanced Parameters
SIP Server Parameters
- using a MIB browser
- using the CLI
- creating a configuration script containing the configuration parameters
For more details on the following advanced parameters, refer to the DGW Configuration Guide - Reference Guide published on the Media5 Documentation Portal.
Setting the default Outbound Proxy Router Type
SipEp.defaultProxyOutboundTypeSetting Gateway-Specific Outbound Proxy Router Type
SipEp.gwSpecificProxy.OutboundTypeTop
Online Help
If you are not familiar with the meaning of the fields and buttons, click Show Help, located at the upper right corner of the Web page. When activated, the fields and buttons that offer online help will change to green and if you hover over them, the description will bedisplayed.
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DGW Documentation
Mediatrix devices are supplied with an exhaustive set of documentation.
Mediatrix user documentation is available on the Media5 Documentation Portal.
- Release notes: Generated at each GA release, this document includes the known and solved issues of the software. It also outlines the changes and the new features the release includes.
- Configuration notes: These documents are created to facilitate the configuration of a specific use case. They address a configuration aspect we consider that most users will need to perform. However, in some cases, a configuration note is created after receiving a question from a customer. They provide standard step-by-step procedures detailing the values of the parameters to use. They provide a means of validation and present some conceptual information. The configuration notes are specifically created to guide the user through an aspect of the configuration.
- Technical bulletins: These documents are created to facilitate the configuration of a specific technical action, such as performing a firmware upgrade.
- Hardware installation guide: They provide the detailed procedure on how to safely and adequately install the unit. It provides information on card installation, cable connections, and how to access for the first time the Management interface.
- User guide: The user guide explains how to customise to your needs the configuration of the unit. Although this document is task oriented, it provides conceptual information to help the user understand the purpose and impact of each task. The User Guide will provide information such as where and how TR-069 can be configured in the Management Interface, how to set firewalls, or how to use the CLI to configure parameters that are not available in the Management Interface.
- Reference guide: This exhaustive document has been created for advanced users. It includes a description of all the parameters used by all the services of the Mediatrix units. You will find, for example, scripts to configure a specific parameter, notification messages sent by a service, or an action description used to create Rulesets. This document includes reference information such as a dictionary, and it does not include any step-by-step procedures.
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Copyright Notice
Copyright © 2023 Media5 Corporation.
This document contains information that is proprietary to Media5 Corporation.
Media5 Corporation reserves all rights to this document as well as to the Intellectual Property of the document and the technology and know-how that it includes and represents.
This publication cannot be reproduced, neither in whole nor in part, in any form whatsoever, without written prior approval by Media5 Corporation.
Media5 Corporation reserves the right to revise this publication and make changes at any time and without the obligation to notify any person and/or entity of such revisions and/or changes.