The VoIP Migration Company™ A Transparent VoIP Migration in Ontario Portico™ Telephone VoIP Adapter (TVA™) Extends Life of Existing PBX Telephones; Economics “Makes Finance Group Happy” For more than 90 years National Sales and Distribution Inc. in Ontario, Canada, has been serving the Yellow Pages Group as an exclusive distributor of telephone directories for Quebec and Ontario. The company sells advertising and other directory products pr

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