Network Devices
No. Question Answer Memo Ref.
3-a
Can the firewall pass packets
appropriately?
When a firewall is used, make sure to
configure the firewall appropriately to allow
VoIP packets to pass through the network
without being blocked by filtering.
Yes
No
Model of firewall:
p. 20
3-b
Are layer 2 or higher switches used?
Do not use repeater hubs as they can
increase the network load.
Also note that the port of the switching hub
that connects to the MPR/IP-EXT16 cards
should be set to operate under "Auto
Negotiation" mode.
Yes
No
Model of switch:
p. 21
3-c
Are Category 5 (CAT 5) or higher cables
used?
Yes
No
p. 21
QoS (Quality of Service)
No.
Question Answer Memo Ref.
4
Can the router or switch be configured to
use priority control features?
Yes
No
Model of the router/switch:
V-IPGW16 card’s ToS field
setting:
p. 22
24 IP Networking Guide Document Version 2010-08
2.2 VoIP Requirements Checklist
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