PHP Control of Supply of products in Web

Em Portugues:
Controle de estoque de produtos, com cadastro de clientes, fornecedores, vendedores, produtos, compra e venda, alteraзгo nos mesmo, contas а pagar, contas а receber, comissгo, e diversos tipos de relatуrio.
Em Inglкs:
Control of supply of

Today’s small-to-medium-sized (SMB) businesses and large enterprises are saving on their monthly communications costs by making one simple decision: to switch to a VoIP service solution from their old, outdated Plain Old Telephone Service (POTS). By choosing a new VoIP service, these companies enjoy the flexibility, reliability, call features, and audio quality that only a VoIP service can provide. Plus, they cut their phone bill by up to 70%!