Good day!!
One question, I try to change the firmware to Cisco 8831 for this "cp-8831-sip.9-3-4-SR2-3PCC.bin.sgn" for connecto to other vendor PBX.
But way CUCM OS Administration --> Software Upgrades --> Install/Upgrade not is possible the firmware don´t appear in the list.
I try with url page http://<dirección_IP_del_teléfono>/upgrade?tftp://<dirección_IP_del_servidor_TFTP>/<archivo_binario_del_firmware>
http://10.118.49.41/admin/upgrade?tftp://10.127.3.73/cp-8831-sip.9-3-4-S...
10.118.49.41 IP Address CP 8831
10.127.3.73 IP my host TFTP Server.
Firmware: cp-8831-sip.9-3-4-SR2-3PCC.bin.sgn
But show the next error:
Actually the CP 8831 have the firmware:
| Active Load ID: | sip8831.10-3-1-1 |
How I changed the firware for CP8831 ??
