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| Part Number | Description | |
| CON-ESW-IVR3UPO50 | Essential SW Upg.50;IVR;2.X Prts-50;IVR;3.XPrts | |
| CON-ESW-QQM3PO50 | Essential SW Upg.50;QM 2.X Prts-50;QM 3.0 Prts | |
| CON-ESW-IVR3UPO5 | Essential SW Upg.5;IVR-2.X Prts-5;IVR-3.X Prts | |
| CON-ESW-QQM3PO5 | Essential SW Upg.5;QM 2.X Prts-5;QM 3.0Prts | |
| CON-ESW-IVR3UPO1 | Essential SW Upg;1 IVR 2.X Port-1;IVR;3.XPrt | |
| CON-ESW-QIVR3PO1 | Essential SW UPGrade 1 QM Port to 1 IVR Port | |
| CON-ESW-QIVR3PO5 | Essential SW UPGrade 5 QM Ports to 5 IVR Ports | |
| CON-ESW-UIVR30 | Essential SW Upgrade IVR 2.X to IVR 3.0 SW | |
| CON-ESW-QM2IVR30 | Essential SW UPGrade QM 2.X to IVR 3.0 SW | |
| CON-ESW-QM2QM3.0 | Essential SW Upgrade QM 2.X to QM 3.0 SW | |
| CON-ESW-PROADDON | ESSENTIAL SW UWI-Professional-1 User ADDON | |
| CON-ESW-UWLCMPRO | ESSENTIAL SW UWL-Upg to 1 Professional User | |
| CON-ESW-UWLCAPPR | ESSENTIAL SW UWLic-Upg to 1 Professional User | |
| CON-ESW-ICSU-VMI | Essential SW Visual Messaging Int | |
| CON-ESW-ICSVM25 | Essential SW VM 25 User Upgrade | |
| CON-ESW-ICSVM5 | Essential SW VM 5 User Upgrade | |
| CON-ESW-ICSVM8100 | Essential SW VM Upgrade from 4x50 to 8x100 | |
| CON-ESW-ICMWBVCLC | ESSENTIAL SW Webview Connection Lic. Certif. | |
| CON-ESW-ICMWBVCON | Essential SW WebView Connection License | |
| CON-ESW-6BMEUSR | Essential SW, UC System Release 6.0 Bundle - B - ME |