Nortel VoIP Gateway, Configuration Manual

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Configuring the Network Settings 75
Norstar VoIP Gateway Configuration Guide
5 Click the Submit button to save your changes.
6
To apply the changes, you must reset the VoIP Gateway. To reset the VoIP Gateway:
a Click the Reset button.
b
Click the Restart button.
A confirmation dialog box appears.
c
Click the OK button.
7 To save the changes so they are available after a power fail, you must save the changes to
non-volatile memory. To save the changes to non-volatile memory:
a Click the Save Configuration button.
The Save Configuration to the system screen appears.
Enable SNMP Select Yes if you want to send SNMP traps to the SNMP Manager.
Select No if you do not want to send SNMP traps.
The default value is Yes.
RTP Base UDP Port Enter the base UDP port you want to use for RTP (voice), RTCP and T.38 channels. This
is the lower boundary of UDP ports used by the VoIP Gateway.
The upper boundary is the Base UDP Port + 40.
The range of possible UDP ports is 1000 to 64000.
The default base UDP port is 4000. You should not change this parameter from its default
value.
RTP IP Diff Serv Enter the Diff Serv Code Point (DSCP) value that is assigned to the RTP packets.
The DSCP value is used by DiffServ compatible routers to prioritize how packets are sent.
By prioritizing packets, the DiffServ routers can minimize the transmission delays for time
sensitive packets such as VoIP packets.
DSCP values can be from 0 to 63.
The default value is 46, which enables priority handling by QoS routers.
If enter a Diff Serv value, this value is used instead of the RTP IP TOS and RTP IP
Precedence values.
RTP IP TOS Enter the value that is assigned to IP Type Of Service (TOS) field in the IP header for all
RTP packets sent by the VoIP Gateway.
You can enter a value from 0 to 15.
The default value is 0.
RTP IP Precedence Enter the value that is assigned to the IP Precedence field in the IP header for all RTP
packets sent by the VoIP Gateway.
You can enter a value from 0 to 7.
The default value is 0.
Port 1 Duplex Mode Shows the Duplex mode the Ethernet port is using.
This is a read-only parameter.
Port 1 Speed Shows the speed, in MBits per second, that the Ethernet port is using.
This is a read-only parameter.
Table 12 Network Settings Parameters (Continued)
Parameter Description