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--- notes:cisco7912g [20/09/2015 15:49]
admin [1. Upgrading from SCCP to SIP , same version]
+++ notes:cisco7912g [01/11/2015 23:35] (versione attuale)
alez
@@ Linea 8: / Linea 8: @@
 Maybe it does support also cisco pre-standard because there is a diode bridge that allows reverse polarity powering over rj45.
-===== UPGRADING TO SIP =====
+===== FIRMWARE UPGRADE =====
+==== Firmware source ====
+[[http://radiotwenterand.nl/~graver/cisco/7905/]]
 ==== Upgrading from SCCP to SIP ====
 You can upgrade from an old SCCP firmware to the latest SIP firmware in one pass.
+**IMPORTANT NOTE!**
+<del>It seems that after this upgrade TFTP does not work any more, and you cannot upgrade the firmware again, nor load config from a centralized server.</del>
+It is not true, i was having trouble with the tftp server. If it tries to send pxe (netboot), then the phone DOES NOT ask the tftp server for nothing. So I suppose that also official upgrade procedure (readme file) works. Will check.
 Version of the previous firmware CP7912010300SCCP.....?
@@ Linea 39: / Linea 49: @@
 **CP7912010300SIP050414A.sbin** or **CP7912080000SIP060111A.sbin**