I'm working as senior Network engineer in Cisco Golden Partner Company .
I deployed more mega Voice Networking projects .
Has ability of integration and troubleshooting all below devices :
-all Cisco Routers and switches
-Cisco BE6k
-expressway ,CUCM, CUC , IMP servers , Cisco Jabber
-CME
-Sip,MGCP and H.323 gateways
-T1 ,E1 and fxo voice cards
-Asterisk Server
-Polycom HDX TP
-Cisco telepresence EX Series Mx and DX series