search for: ppp_output_wakeup_rd2dbbfe0

Hi there, anyone has a suggestion about what do I need to do to solve this? Any comments appreciated. Philipp [root@asterisk]# modprobe ztdummy /lib/modules/2.4.22/misc/zaptel.o: unresolved symbol ppp_output_wakeup_Rd2dbbfe0 /lib/modules/2.4.22/misc/zaptel.o: unresolved symbol ppp_input_error_Rd2ca1e76 /lib/modules/2.4.22/misc/zaptel.o: unresolved symbol ppp_unregister_channel_Rb8cf9a74 /lib/modules/2.4.22/misc/zaptel.o: unresolved symbol ppp_channel_index_Raeaf0a6a /lib/modules/2.4.22/misc/zaptel.o: unresolved symb...