Installation & Maintenance Manual   9. Defining the Branch Office Topology using Topology Builder 
Version 6.8  65  Microsoft Lync Server 
10.  From the ‘Edge pool’ drop-down list, select the  Edge pool to be used with this SBA 
(optional), and then click Next; the following dialog box example screens appear: 
Figure  9-13: Define the PSTN Gateway-Lync 2013 
 
Figure  9-14:  Define the PSTN Gateway-Lync 2010