9
ExPERT SETTINGS
9-10
Connection Port Extension screen
Expert Settings > Connection Port Extension
■
VoIP Settings
1
2
3
4
5
6
TOS Type: TOS
1
2
3
4
5
6
TOS Type: Diffserv
L
The screens above show when the Buffering Type (
1
) is set to “Static.”
3
TOS Type ��������
Set TOS Type.
(Default: Not Used)
•
Not Used
: Does not use the TOS function.
•
TOS
:
Outputs the VoIP packet to the TOS field (8 bit) in the IP header, in
the TOS (Type Of Service) format.
L
TOS format applies RFC1349.
•
The first 3 bits: Shows the priority.
Set into “Media (RTP) Priority Level” (
4
) with a decimal
number.
• The next 4 bits: Shows the service type.
Set into “Media (RTP) Service Type” (
4
) with a decimal
number.
The larger number, the higher priority.
•
The last 1 bits: Reserved and fixed to “0.”
•
DiffServ
: Outputs the VoIP packet to the TOS field (8 bit) in the IP header, in
the Diffserv (Differentiated Service) format.
L
The Diffserv format details:
• The former 6 bits: Shows the DSCP.
Set “Media (RTP) DSCP” (
4
) with a decimal number.
The larger number, the higher priority.
•
The next 2 bits: Reserved and fixed to “0.”
1
2
3
5
6
TOS Type: Not Used
