102 Planning and Installation Guide ShoreTel IP Phone 930D
Synchronization Source Every base or repeater must be assigned a synchronization source either
automatically (in the case of bases) or manually (in the case of repeaters.) This
is the source from which the base or repeater derives its clocking
synchronization for the radio interface.
0x23 Any number starting with "0x" is in hexadecimal. 0x23 is 35 in decimal.