HelenOS sources

ipc_phone_hangup  189 kernel/generic/include/ipc/ipc.h extern errno_t ipc_phone_hangup(phone_t *);
ipc_phone_hangup  779 kernel/generic/src/ipc/ipc.c 	ipc_phone_hangup(cap->kobject->phone);
ipc_phone_hangup  753 kernel/generic/src/ipc/sysipc.c 	errno_t rc = ipc_phone_hangup(kobj->phone);