
Chapter 2 Prerequisites checklist 33
IP Telephony Configuration Guide
Network assessment
The following table questions are meant to ensure that the network is capable of handling IP
telephony, and that existing network services are not adversely affected.
Resource assessment
Answer the questions in the following table to determine if you have allocated sufficient resources
on the Business Communications Manager for IP telephony.
For information about changing the DS30 split for the Business Communications Manager and
allocating media resources, refer to the Programming Operations Guide (data sections).
Hardware restriction: IP telephony, including T.38 fax, cannot operate on a system that has
PEC Is installed on the MSC. Your system must have PEC IIIs.
Table 3 Network assessment
Prerequisites Yes No
3.a Has a network assessment been completed?
3.b Has the number of switch/hub ports available and used in the LAN infrastructure
been calculated?
3.c Does the switch use VLANs? If so, get the VLAN port number and ID.
3.d Have the used and available IP addresses for each LAN segment been
calculated?
3.e Has DHCP usage and location been recorded?
3.f Has the speed and configuration of the LAN been calculated?
3.g Has the estimated latency values between network locations been calculated?
3.h Have the Bandwidth/CIR utilization values for all WAN links been calculated?
3.i Has the quality of service availability on the network been calculated?
Table 4 Resource assessment
Prerequisites Yes No
4.a Has a Business Communications Manager Resource Assessment been
performed using the resource questionnaire in the Programming Operations
Guide?
4.b Has an analysis been done to determine which DS30 split is appropriate for the
system? Has the DS30 split been changed to 3/5, if necessary?
4.c Have all necessary media resources for IP trunks, clients, vmail, IP music, or
WAN dialup been assigned or dedicated?
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