Specifications

Licensing
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Taking each of the licenses in turn, the above information results in the following calculations
and resulting licenses:
• IP device License
MCD Release 4.0: IP device licenses apply to IP phones. HQ1 has 400 local IP users, 20
remote users and is secondary for 200 IP phones from HQ2. Thus 620 licenses are needed.
HQ2 has 200 local IP users and is secondary for 400 IP phones from HQ1. Thus 600
licenses are needed. For the total site, 1220 licenses are needed.
In MCD Release 4.1 and later: IP devices licenses are not required.
• IP user License
IP user licenses apply to IP phones. There are 420 users on HQ1 (400 local and 20 remote)
and 200 users on HQ2. Thus the site total is 620 licenses.
• IP phone License
In MCD Release 4.0: This is a package number and is covered by the number of IP device
and IP user licenses. It is also possible to buy 620 IP phone licenses and additional 600 IP
device licenses for resiliency.
In MCD Release 4.1: Additional licenses are not required for resiliency. Only the basic IP
user license is required.
• Hot Desk License
There are no Hot Desk services, so no Hot Desk licenses are needed.
• ACD License
There are 20 active ACD agents on HQ1, so 20 licenses are needed.
• Digital Link License
Only HQ1 has digital links, and these are 4 spans, so 4 licenses are needed.
• Compression License
IP phones already include compression licenses, so calls between IP phones do not need
additional licenses. Licenses are needed for calls through the 3300 ICP. Compression is
enabled between HQ1 and HQ2. Compression is disabled between HQ1 and the remote
site. So, only trunk calls via HQ1 from HQ2 are needed. There are 200 IP phones, few
TDM, so with a trunk traffic rate of 4 CCS (6 CCS x 2/3) then 24 channels are needed (200
x 4 / 36 x 1.1 (+10%)). Since hardware compression comes in either 32 or 64, then 32
licenses are purchased for HQ1. This allows some degree of expansion and error margin,
even though only 24 licenses are needed.
• X-Net License
There is no networking between units over TDM, so no X-Net licenses are required.
• IP Trunk License
This includes all calls between HQ1 and HQ2. One license is needed per ICP, making a
total of two for the installation. For configuration of IP trunk limits on the route, both trunk
and internal calls must be considered. From the compression license, 24 channels are