void remove_relation(struct call_relation *relation);
struct call_relation *add_relation(void);
int out_setup(unsigned long epoint_id, int message, union parameter *param, char *newnumber);
void remove_relation(struct call_relation *relation);
struct call_relation *add_relation(void);
int out_setup(unsigned long epoint_id, int message, union parameter *param, char *newnumber);