Plano-based GENBAND, a developer of IP-based communications products, said Tuesday that it has added three new systems integrators to its list of partners. According to the firm, Verscom Solutions, VoIP Logic and General Telecom, will sell the firm's products, following the firm's acquisition of NextPoint Networks. All three previously sold NextPoint Networks products. GENBAND purchased NextPoint Networks on September 16th. NextPoint developed voice-over-IP products and gateways.