WARNING: "zt_transmit" [drivers/zaptel/ztdummy.ko] undefined!
WARNING: "zt_receive" [drivers/zaptel/ztdummy.ko] undefined!
WARNING: "zt_register" [drivers/zaptel/ztdummy.ko] undefined!
WARNING: "zt_unregister" [drivers/zaptel/ztdummy.ko] undefined!
make[1]: *** [__modpost] Error 1
make: *** [modules] Error 2