50 Chapter 4 CS 1000 considerationsN0075588N0075588Firmware upgradeThe redirected IP telephones at the SRG are under the control of the main office call server for themajority of their deployment and receive all of their features in that context. Therefore, the versionof IP set firmware must align with the requirements of the CS 1000.Firmware supported by SRG200/400 Release 1.5Table 11 lists the IP clients and related firmware versions supported on the SRG200/400. TheSRG200/400 Release 1.5 column indicates the firmware versions included with the SRG software.The CS 1000 columns identify the version of firmware to use for specific releases.Release 4.5 firmware upgrade procedureWhen an IP telephone requires a firmware upgrade, the CS 1000 uses the umsUpgradeAllcommand, or variant, to redirect the telephone back to the SRG for upgrading. If the required filedoes not exist on the SRG, or its version is incorrect, the SRG initiates an FTP session to the TPSfor that phone to retrieve the required file. The SRG upgrades the phone and redirects it back to theCS 1000.Table 11 Supported IP clients and firmware versionsIP Client SRG200/400Release 1.5CS 1000Release 3.0Release 4.0Release 4.5(apply via Enhanced FirmwareDownload feature)Phase I: 2002, 2004 B65 or greater B65 or greater B76 or greaterPhase II: 2001, 2002, 2004 D98 or greater D88 or greater D98 or greaterIP Phone 2007 C22 or greater C22 or greater C22 or greaterWLAN Handsets 2210/2211 Not embedded inSRG softwareUse the 2210/2211GA firmware load.97.059 or greaterWLAN Handset 2212 Not embedded inSRG software97.039 or greater 97.059 or greaterIP Phone 2033 S12 or greater S12 or greater S12 or greaterIP Phone 1120E 0624C1F or greater 0624C1F or greater 0624C1F or greaterIP Phone 1140E 0625C1F or greater 0625C1F or greater 0625C1F or greateri2050 software phone build 385 or greater build 385 or greater build 385 or greaterMVC 2050 build 126 or greater build 126 or greater build 126 or greater