2.2 VoIP Requirements Checklist
18 Information about IP Proprietary Telephones
Network Devices
No. Question Answer Memo Ref.
3-a
Can the firewall pass packets from IP-PTs?
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. 15
3-b
Are layer 2 or 3 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 IP-EXT16 card should be set to
operate under "Auto Negotiation" mode.
Yes
No
Model of switch:
p. 16
3-c Are Category 5 (CAT5) or higher cables used?
Yes
No
p. 16
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