D.2 VoIP Requirements Checklist
Use the following checklists to see if you can implement a VoIP network. The answers identified in
underlined
bold-face letters
are the required answers for the corresponding questions.
Bandwidth Assessment
No.
Question
Answer
Memo
Ref.
1
Does the network have enough
bandwidth to support VoIP
communications?
Make sure that there is more bandwidth
available for VoIP communications than the
amount actually required.
Yes
No
•
IP network bandwidth
= kbps
•
Available bandwidth for
VoIP
= kbps
•
Required bandwidth for
VoIP
= kbps
p. 80
Network Configuration
No.
Question
Answer
Memo
Ref.
2-a
Is the IP network a managed network?
Make sure to use a managed IP network such
as Frame Relay, Leased Line, or IP-VPN
(Virtual Private Network). The IPCMPR/
IPCEMPR card is not intended for use on the
Internet (including an Internet VPN).
Yes
No
Type of IP network:
p. 80
2-b
Is it possible to have static IP addressing?
Yes
No
p. 80
2-c
Does only a single router provide access
to the IP network?
Yes
No
p. 81
2-d
Are the network devices located
appropriately for effective VoIP
communications?
It is recommended to connect the PBX as
close to IP-CSs and the IP network interface
as possible.
Yes
No
p. 82
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. 82
84
Quick Installation Guide
Document Version 2009-12
D Guidance for VoIP Installation
