Exhibit 21.1
 
Subsidiary Name
 
Jurisdiction of Formation
Fusion NBS Acquisition Corp.
 
Delaware
Network Billing Systems, L.L.C. d/b/a Fusion
 
New Jersey
Fusion BVX LLC
 
Delaware
PingTone Communications, Inc.
 
Delaware
Fidelity Access Networks, Inc.
 
Ohio
Fidelity Access Networks, LLC
 
Ohio
Fidelity Connect LLC
 
Ohio
Fidelity Voice Services, LLC
 
Ohio
Fidelity Telecom, LLC
 
Ohio
Apptix, Inc.
 
Florida