Sales Support Account Team Contacts AT&T provided services such as Unified Communications, Contact Center, SIP Trunking and Centrex/PRI Danny AdamsAT&T Customer Solutions ExecutiveEmail: da3525@att.comPhone: 850-815-8267Rob GassAT&T Customer Solutions ExecutiveEmail: rg1172@att.comPhone: 407-446-8169 Hayes hosted Avaya Unified Communications and Contact Center services Mike VitaleHCS Director of VoIP Operations Email: mvitale@hcs.netPhone: 813-373-0535Brooke HeffleyHCS Account ManagerEmail: bheffley@hcs.netPhone: 850-553-3926Melanie VialpandoHCS Sales Operations ManagerEmail: mvialpando@hcs.netPhone: 850-553-3963 Frontier Centranet/PRI services Maggie NolanHCS Service Activation ManagerEmail: mnolan@hcs.netPhone: 850-553-3959 SUNCOM Account Team https://www.dms.myflorida.com/business_operations/telecommunications/contact_us