Installation guide

Configuring Dynamic Ports
When a firewall is crossed, the firewall administrator must open a range of dynamic TCP and
UDP ports to allow bidirectional IP traffic. Moreover, once the ports have been opened, the
protocols [TCP 1720 (Q.931), TCP 1503 (T.120), UDP 1719, and 1718 (RAS)] involved in a call
must be taken into account.
Procedure
Step 1
Access the SCOPIA XT Series web interface.
Step 2
Select Administrator Settings.
Step 3
Select Networks.
Step 4
Select Dynamic ports under Preferences.
Figure 5-23 Configuring dynamic port settings
Step 5
Set the fields as described in Table 5-16 on page 61.
Table 5-16 Configuring dynamic ports
Field Name Description
Auto detect Setting to No means the XT Codec Unit uses the indicated ports. Setting
to Yes means the XT Codec Unit uses ports in random mode.
Recommended setting is auto-detect set to No (default).
Ports Sets the range of TCP and UDP ports the system uses. The range spans
from the number you enter to the number displayed in the system
menu. For port use, see the RADVISION Port Security Reference Guide.
The H.323/SIP signaling and media ports are programmable.
RADVISION | Installation Guide for SCOPIA XT4000 Series Version 3.0 Initial Configuration | 61