7962+7915 is supported. FW version on both seems compatible but its possible there
is an issue we may be hitting here...
When you say 7915 does not work, can you advise what exactly happens?
Things to check:
- Does 7962 upgrade fine if u remove 7915 altogether ?
- Enough buttons defined in phone-button-template being used depending on a 7915-12 or 7915-24 ?
- Using CP-PWR-CUBE-3 for 7915 ?
DK