Nortel Networks NN43001-121 manual Storage, Trunks, SIP access port

General requirements 55

Communications Server that runs Microsoft Virtual Server 2005. For additional information about Virtual Server 2005, see the Virtual Server Web site at www.microsoft.com/windowsserversystem/virtualserver/default.mspx.

Storage

Store internal hard disks used for operating system and executable software, data, and transaction files separately. The following lists shows storage options:

•Direct access storage device (DASD)

•Storage Area Network (SAN)

•Redundant Array of Independent Disks (RAID)

Onboard storage:

•2 SCSI Channels (split backplane)

•Five 18-GB hard disks, 15 000 rpm SCSI disk drives

Optional SAN:

•One Fibre Channel Host Bus Adapter (HBA)

•SAN unit

Trunks

To handle the traffic between the CS 1000 and the Office Communications Server 2007, you must configure sufficient SIP trunks and PCAs . The number of additional SIP trunks needed is determined by:

Determine the number of SIP trunks required by multiplying the number of OC 2007 clients that use the SIP Gateway feature by the percentage of users you expect on the phone at any time.

For example, 100 Office Communicator SIP Gateway users x 10% on the phone at a time = 10 additional SIP trunks.

The percentage of users on the phone is decided by standard practice and the environment involved (For example, Call Center or Normal Office).

PCA trunks are required for each Office Communicator user that uses the Twinning (for SIP Gateway) feature.

SIP access port

Table 12 "Inputs" (page 56) defines the inputs used to calculate SIP access ports and PCA requirements.

Nortel Communication Server 1000

Nortel Converged Office Fundamentals — Microsoft Office Communications Server 2007

NN43001-121 01.03 Standard

Release 5.0 30 April 2008

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