XO Communications is a leading nationwide provider of advanced IP communications.
XO Communications is a leading nationwide provider of advanced IP communications, managed network and IT infrastructure services for business, large enterprise and wholesale customers. Our customers include more than half of the Fortune 500, in addition to leading cable, mobile wireless, and domestic and international telecommunications companies.
Keywords: B2B telecom,MPLS, SIP Trunking,Hosted PBX,unified communications,WAN Solutions,VoIP,Ethernet,IP-VPN,Private Line,Hosted Security,Colocation,Cloud Computing,Hosting
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