void start_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
void stop_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
void hold_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
void start_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
void stop_dtmf_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);
void hold_ind(unsigned int msg_type, unsigned int callref, struct gsm_mncc *mncc);