Media5 Mediatrix 4104, Reference Manual, Page: 86 / 466

Chapter 4 - Web Interface – SIP Parameters SIP Servers Configuration
64 Mediatrix 4104

To set user agent information:
1. In the second SIP Configuration section of the SIP page , enter a user name for each port in the User
Name column.
Figure 28: SIP – User Agent section
The user name uniquely identifies this endpoint in the domain, such as a telephone number. It is
used to create the
Contact and From headers. The From header carries the permanent location (IP
address, home domain) where the endpoint is located. The Contact header carries the current
location (IP address) where the endpoint can be reached. Contact headers are used in two ways:
• First, contacts are registered to the registrar. This enables callers to be redirected to
the endpoint’s current location.
• Second, a contact header is sent along with any request the user agent sends (e.g.,
INVITE), and is used by the target user agent as a return address for later requests to
this endpoint.
You cannot set this field to an empty value. Furthermore, it is reset to 333000X during a factory
reset, the X digit being the port number.
2. Enter another name for each line in the Display Name column.
This is a friendly name for the user agent. It contains a descriptive version of the URI and is intended
to be displayed to a user interface.
3. Enter a second accepted user name for each line in the Other Accepted Username field.
This is a user name that the endpoint recognizes as its own, but does not register in contacts sent
to the registrar. The endpoint only registers the user name set in the
User Name column.
You can use this column to add a variation on the user name. For instance, let’s say that the user
name is a telephone number, 555-1111. A variation could be to prefix the local area or country code,
such as 819-555-1111.
To include more than one user name, separate them with a “,” character, such as: user1, user2,
5552222, 18195552222.
4. Click Submit if you do not need to set other parameters.
SIP Registration
You can refresh the registration, i.e., commit the changes you have done to the registration. When refreshing
the registration, all enabled endpoints unregister themselves from the previous registrar and send a new
registration to the current registrar with the current parameters.
You can also set this parameter via SNMP, as described in “Registration Parameters” on page 266 .

To refresh the registrations:
1. In the SIP Registration section of the SIP page, set the registration command in the SIP Registration
Command menu.
Figure 29: SIP – SIP Registration section
The following values are available:
• noOp: No operation.
• refresh: Refresh registrations.
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