Quintum Tenor VoIP MultiPath Switch DX2030 allows you to reap benefits from the technology of IP-telephony (VoIP). One Tenor DX2030 solution integrates a gateway, a gatekeeper, and intelligent call routing technology, and supports quality of service (QoS).
Citel Technologies , A Voice over IP Phone company that provides VoIP Business Phone Systems. Its Main products include EXTender, PBXgateway, Upgraded Hardware Products, PBX platforms etc.