Installation guide

66 Planning and Installation Guide ShoreTel 14.2
Network Requirements and Preparation Computing Admission Control Bandwidth
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Figure 4: Multisite Options
Computing Admission Control Bandwidth
This section discusses how to compute the admission control bandwidth for the site you are
configuring on the Site edit page—that is, the appropriate value for the Admission Control
Bandwidth parameter. If you want to determine the admission control bandwidth for your site and the
information is not available in this section, use one of the following formulas:
 To determine the admission control bandwidth:
Bandwidth – (# of calls) x (bandwidth/call)
 To determine the number of calls supported with a specific admission control bandwidth value:
# of calls – (admission control bandwidth) / (bandwidth/call)
ShoreTel automatically negotiates the proper voice encoder at call setup. For calls between sites, the
call control software requests the voice encoder based on what is selected for intersite voice encoding
as defined on the Call Control Options edit page. The call control software will then make sure both
endpoints on the call can support the requested voice encoder.
For instance, for G.729a voice encoding to be used between two sites, the intersite voice encoding
must be set to G.729a and the ShoreTel voice switches at each end of the call must be G.729a-
capable.