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<h2>Interworking with other features</h2>

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<h3>Data
calls and HSCSD</h3>

<p>Data calls are even more sensitive to noise than non-AMR
users and therefore BCCH TRX is preferred for data calls. If the TCH request
is for a data call and the <span class="parameter-sem">TRX Priority In TCH Allocation</span>
parameter is set to 3, the BCCH TRX is allocated following the existing rules
applied for the parameter value 1. If the <span class="parameter-sem">TRX Priority
In TCH Allocation</span> parameter is set to some other value than 3, the TCH
is allocated according to the existing rules for these values.</p>
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<h3>Intelligent
Underlay-Overlay</h3>

<p>The TRX priority setting is not applied in super-reuse
TCH allocation for underlay-overlay handovers.</p>
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