phone 7975 SCCP75.9-4-2SR1-1S
two expansion 7916 module B016-1-0-4-2
callmanager 11.0.1.20000-2
I configured the phone using SCCP, once the configuration was finalised I connected the phone - 1 x 7916 expansion modules - and its working fine , but when we connect 2 X 916 expansion , the status that the 2 expansion keep resetting , could it be simply power supply related. The two expansion modules are connected to an external power supply.
please advice
