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RB Telecom provide Billing Software, Call Relay VoIP Solutions, Call Routing VoIP Solutions, Collaboration, E1 Bulk Wholeseller, H.323 Softswitch & CPE, H.323 VoIP Gateway, IP devices, Outsourced Billing, Partnering for Origination and Termination, SIP Softswitch & CPE, SIP VoIP Gateway, Termination services. Protocols: h.323, IAX, SIP City: South Barrington, IL Provider phone: 1-847-879-2864 Provider site: www.rbtinc.com |