John Costello’s Email & Phone

John Costello Contact Details

Location:
Ireland
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About:

John Costello is skilled in: Unified Communications, VoIP, SIP, Telephony, Telecommunications, CTI, IP, Video, Product Management, Cisco Call Manager, Contact Centers, Network Architecture, QoS, Professional Services, Go-to-market Strategy, IVR, Business Development, Mobile Devices, Product Marketing, Wireless, Data Center, MPLS, Video Conferencing, Cisco Technologies, Unified Messaging, Networking, Solution Selling, Management, Telepresence, Pre-sales, Integration, Cloud Computing, SaaS, Ethernet, 

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