Thanks a lot, colleagues!   I was able to migrate with the help of intermediate CUCM 7.1.5 which was upgraded to 8.6.2 and so on...   The advice to migrate by moving configs did not help.   Now I try to re-host the license which became invalid after the last DRS restore on the working CUCM 8.6.2   but it is not the question of this thread :) ... View more

the example.   a phone 6921 is loaded with SCCP69xx.9-4-1-3SR1 with SCCP the device default for 6921 SCCP is SCCP69xx.9-4-1-3SR3   this is Software from OS Administration:   ciscocm.dst-updater.2011h-1.el5.7.1.5.cop Active ciscocm.version3-keys.cop Active cm-locale-ru_RU-7.1.5.1200-1.cop Active cmterm-69xx-sccp.9-4-1-3.cop Active cmterm-69xx-SCCP.9-4-1-3SR3.k3.cop Active cmterm-7911_7906-sccp.9-2-3.cop Active cmterm-7911_7906-sccp.9-3-1SR4-1.cop Active cmterm-7911_7906-sccp.9-4-2SR1-1.cop Active cmterm-7911_7906-sccp.9-4-2SR3-1.k3.cop Active cmterm-7921-sccp.1-4-1SR1.cop Active cmterm-7921-sccp.1-4-2.cop Active cmterm-7921-sccp.1-4-5-3.cop Active cmterm-7921-sccp.1-4-6-3.cop Active cmterm-7925-sccp.1-4-5SR1-3.cop Active cmterm-7925-sccp.1-4-8SR1-5.k3.cop Active cmterm-7942_7962-sccp.9-2-1.cop Active cmterm-7942_7962-sccp.9-3-1SR2-1.cop Active cmterm-7942_7962-sccp.9-3-1SR4-1.cop Active cmterm-7942_7962-sccp.9-4-2SR3-1.k3.cop Active cmterm-9951.9-2-1.cop Active cmterm-9951.9-2-3-27.cop Active cmterm-9951.9-4-1-9.cop Active cmterm-9951.9-4-2SR1-2.cop Active cmterm-9951.9-4-2SR4-1.k3.cop Active cmterm-android_9.0.1v24.cop Active cmterm-devicepack7.1.5.34091-1.cop Active cmterm-devicepack7.1.5.36121-2.cop Active localeinstaller Active   And TFTP service is activated only on publisher. All my info is about publisher. ... View more

As I understand by default phone have to take the default firmware during the reset of reboot. but yes I inserted names of new firmare in "phone load name". and without success. ... View more

hi again!   well I could not export and import configs from 7.1.5 to 8.6.2 because of a huge amount of errors.   now I try to understand how I can upgrade my test CUCM 7.1.5 to 8.6.2 I tried to start the VM with 7.1.5 from the connected virtual DVD with bootable 8.6.2. but it asks "do you want to rewrite the disk?" and it's not what I want to do. what is the right way of uprgrading from 7.1.5 to 8.6.2? ... View more

OK, if I will try the next steps:   1. Make a DRS backup on an old CUCM 7.1.5. 2. Install a new virtual CUCM 7.1.5 for intermediate purposes. 3. Restore DRS backup from 1-st step on a virtual CUCM 7.1.5. 4. Upgrade a virtual CUCM 7.1.5 to the 8.6.2 version. 5. Make a DRS backup from a virtial 8.6.2 (ex-virtual 7.1.5) 6. Restore a DRS backup on a hardware 8.6.2 with existing licences.   Will it work? ... View more

well so what is the main problem of moving configs by import-export from 7.1.5 to 8.6.2? Will I get troubles which I don't see now? in this case I will have two working CUCMs with the identical configs. Ans I will be able to test the new one before the implementation. ... View more

Thanks, Nipun!   your 1st way is looking very good for me.   How do you think if I upgrade old system the old licences will work on it?   And if something will go wrong I will have on one working CUCM. ... View more

Hi, Nipun!   I have two CUCMs on hardware platforms - 7.1.5 and 8.6.2. And I need to move all the configs from 7.1.5 to 8.6.2 The reason is simple - I cannot find phones for 7.1.5 to buy :)   As I understand the upgrade is the process when I make changes over my one CUCM. And the migrate is when I move configs from one CUCM to another CUCM. ... View more

Hi Simon!   thanks for your answer.   I have already an installed 8.6.2 server with installed licences on a hardware platform.   so I don't want to re-install  it from the 7.1.5 level.   I don't need any CDRs now.   will I receive the working 8.6.2 after the export of configs from 7.1.5 and the import of its into 8.6.2? ... View more