How to configure Mediatrix 1204 four port analog FXO gateway

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Configuring the Mediatrix 1204 using Unit Manager Express

Connecting Unit Manager Express to the 1204 Unit

The following configuration example describes how to use the Mediatrix 1204 analog 4 port FXO gateway as a local PSTN gateway with sipX. Mediatrix chose SNMP as the interface and protocol used to configure and administer their gateways. SNMP is not easy to deal with at the MIB level, so if you are not familiar with SNMP we recommend to chose another gateway manufacturer.

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Once Unit Manager Express and the corresponding MIB tree definitions are installed, you should be able to fire up Unit Manager Express and connect to the 1204 gateway. By default the 1204 unit obtains its IP address using DHCP. Therefore, you might want to use the Discoer Agents function under the SNMP tab in Unit Manager Express. Once found click on the gateway and connect. The icon in the footer of Unit Manager Express should now show connected.

Configuring the 1204 Unit

The Mediatrix should be configured with a static IP Address rather than a DHCP address. If DHCP is used a specific IP addressed should be reserved for the Mediatrix gateway based on its MAC address.

{{Box Code|Configure Static IP Address (mediatrixConfig/ipAddressConfig/ipAddressConfigLocalHost)|

localHostSelectConfigSource:

STATIC

localHostStaticAddress:

The

IP

address

of

the

Mediatrix

Gateway

LocalHostStaticPrimaryDNS:

The

IP

address

of

the

primary

DNS

server

localHostStaticDefaultRouter:

The

IP

address

of

the

default

router

LocalHostStaticSubnetAddress:

The

IP

subnet

address

of

the

Mediatrix

Gateway

}}

{{Box Code|Generic Settings (mediatrixConfig/telephonyMIB/telephonyMIBObjects)|

}}

{{Box Code|Basic SIP Server Settings (mediatrixConfig/ipAddressConfig/ipAddressConfigSipServer)|

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The Mediatrix 1204 FXO gateway technically is a SIP user agent. However, it is not an endpoint we want to call and therefore it does not need to register with sipX. Calls are routed to the gateway based on rules defined in the dialplan active on sipX.Note:

{{Box Code|SIP Transport (mediatrixTelephonySignaling/sip/sipMIB/sipMIBObjects/sipTransport)|

}}

{{Box Code|User Agent Username (mediatrixTelephonySignaling/sip/sipMIB/sipMIBObjects/sipUAIfTable)|

sipUAMainUsername:

The

main

user

name

uniquely

identifies

this

endpoint

in

the

domain

sipUADisplayName:

This

is

the

friendly

name

for

the

user

agent

SipUAOtherAcceptedUsernames:

Leave

this

field

and

the

proceeding

sipUA

fields

blank

}}

{{Box Code|Voice Codec Preferences (mediatrixConfig/voiceIfMIB/voiceIfMIBObjects)|

voiceIfCodecPreferred: Enter your preferred codec here for each FXO port [default]
(Normally pcmu is preferred if there are no BW limitations, otherwise g729 is good)

voiceIfCodecPcmuEnable: Enable if you want this codec as a choice [default]

voiceIfCodecPcmaEnable: Enable if you want this codec as a choice [default]

VoiceIfCodecG723Enable: Enable if you want this codec as a choice [default]

VoiceIfCodecG729Enable: Enable if you want this codec as a choice [default]

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Configuring telephony attributes below tells the FXO gateway to automatically route incoming calls from the PSTN to the auto-attendant.Note:

{{Box Code|Telephony Attributes (telephonyAttributesMIB/telephonyAttributesMIBObjects)|

...

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{{Box Code|Digit Map (digitMapMIB/digitMapMIBObjects)|

}}

{{Box Code|Voice Interface (voiceIfMIB/voiceIfMIBObjects/voiceIfTable)|

}}

Defining a new PSTN gateway in sipX

Setting up a new gateway in sipX is really simple. Go to the Gateways in the left navigation bar, enter a unique name for the gateway and its IP address. Done. You can now use this gateway in all your dial plan definitions, which allows you to define specific rules about which calls should be routed to which gateway.

IMPORTANT:

Maintenance Tasks for the Mediatrix 1204 FXO Gateway

Reset to Factory Defaults

Reset to factory defaults can be done at run time or while powering up the unit. The procedure is the same: Insert a paper clip into the Default Settings hole at the back next to the Ethernet plug. Hold it in place until all four LEDs stop blinking and are steadily ON (10 to 15 seconds), then depress. Resetting to factory defaults deletes all configuration and history stored in the unit. Factory Defaults configures the unit to obtain an IP address from a DHCP server - make sure you got one on your network.

Mediatrix Analog Gateway Firmware Upgrade

You are an expert in SNMP management and MIB variables, right? If not I suggest you leave this task to an expert. Mediatrix only gives access to firmware downloads to their certified resellers, so that you have to contact your dealer to obtain a new firmware release. The firmware package includes the new image .zip file, updated documentation, as well as the MIB definition that corresponds to the new firmware image. In addition, you will need a recent copy of Unit Manager Express, the Mediatrix management tool.

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Start Unit Manager Express and navigate the following variables:

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