Mediatrix Gateway Settings; Systemwide Sip Parameters - Cisco UC320W Administration Manual

Ports and Trunks
SIP/BRI Trunks
Cisco Unified Communications UC320W Administration Guide

Mediatrix Gateway Settings

This section is available after you select a provider. To enter the settings, click
Settings. To hide the settings, click the button again. Requirements vary by
provider; refer to the information from your provider.
Note: You can install up to two Mediatrix 4400 Digital Gateways. Connect the
Cisco UC320W and the BRI gateway to a secure router such as Cisco SA500. For
application notes, visit the Small Business Support Community.
• Description: Enter a short description of this service for your reference.
• Mediatrix IP Address: Enter the IP address for the Mediatrix server.
• Call Capacity: Select the maximum number of concurrent calls that are
supported on this trunk by your provider.
• Prefix dialed numbers with: Check the box if this feature is required by the
SIP provider. When this feature is enabled, the system automatically inserts
the appropriate dialing prefix to an external number (such as +1 in the US or
+44 in the UK, based on the specified Regional Settings).
• Account Phone Number: Enter the main phone number for your BRI
service.
• Launch Mediatrix Interface: Click this link to open the Mediatrix
configuration tool (not a Cisco product).
• Local SIP Port: Displays the local port number to be used for this service.
You will need this port number when you configure the Mediatrix Gateway
to interoperate with the Cisco UC320W.

Systemwide SIP Parameters

This section of the page is available after you choose a provider. These settings
apply to all SIP providers.
• Codec: Keep the default setting or choose the codec for outbound calls.
This list includes the appropriate codecs for your region. Tip: G711
provides better audio quality but uses more bandwidth than G729. With
G729, audio is compressed and may be slightly distorted, most noticeably
when music is played.
• Outbound FAX: Choose a fax transmission setting.
• NAT STUN Server: If you enabled NAT mapping for a SIP provider, you can
select this option use a STUN server to discover NAT mapping. This setting
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