Here is a list of all documented variables with links to the class documentation for each member:

### - c -

- call_samples : t31_state_s
- callback : r2_mf_rx_state_s
- callback_data : modem_connect_tones_rx_state_s, r2_mf_rx_state_s
- calling_party : t30_state_s, v18_state_s, v22bis_state_s, v42_state_s, v8_state_s
- carrier_drop_pending : v17_rx_state_s, v27ter_rx_state_s, v29_rx_state_s
- carrier_loss_timeout : at_state_s
- carrier_off_power : v17_rx_state_s, v22bis_state_s, v27ter_rx_state_s, v29_rx_state_s
- carrier_on_power : v17_rx_state_s, v22bis_state_s, v27ter_rx_state_s, v29_rx_state_s
- carrier_phase : v17_rx_state_s, v17_tx_state_s, v22bis_state_s, v27ter_rx_state_s, v27ter_tx_state_s, v29_rx_state_s, v29_tx_state_s
- carrier_phase_rate : v17_rx_state_s, v17_tx_state_s, v22bis_state_s, v27ter_rx_state_s, v27ter_tx_state_s, v29_rx_state_s, v29_tx_state_s
- carrier_phase_rate_save : v17_rx_state_s, v27ter_rx_state_s, v29_rx_state_s
- carrier_track_i : v17_rx_state_s, v22bis_state_s, v27ter_rx_state_s, v29_rx_state_s
- carrier_track_p : v17_rx_state_s, v22bis_state_s, v27ter_rx_state_s, v29_rx_state_s
- category_control : t38_core_state_s
- channel_level : modem_connect_tones_rx_state_s
- check_sequence_numbers : t38_core_state_s
- child : v42bis_dict_node_t
- chunk_remainder : modem_connect_tones_rx_state_s
- chunk_size : ima_adpcm_state_s
- chunking_modes : t31_t38_front_end_state_t, t38_terminal_front_end_state_t
- cia_type : t30_exchanged_info_t
- cm_jm_data : v8_state_s
- code : t4_run_table_entry_t
- col_out : dtmf_rx_state_s
- compress : v42bis_state_s
- compression_mode : v42bis_comp_state_t
- compression_performance : v42bis_comp_state_t
- congestion_delay : g1050_segment_state_t
- connect_rx : fax_modems_state_s
- connect_tx : fax_modems_state_s
- consecutive_eols : t4_t6_decode_state_s
- constellation : v17_rx_state_s, v17_tx_state_s
- constellation_state : v17_tx_state_s, v22bis_state_s, v27ter_rx_state_s, v27ter_tx_state_s, v29_rx_state_s, v29_tx_state_s
- contents : t38_gateway_hdlc_buf_t
- convolution : v17_tx_state_s
- core : t38_gateway_state_s
- corrupt_current_frame : t38_gateway_t38_state_t
- count_page_on_mcf : t38_gateway_core_state_t
- country : t30_state_s
- country_of_installation : at_state_s
- crc : hdlc_tx_state_s, t38_gateway_to_t38_state_t
- crc_bytes : hdlc_rx_state_s, hdlc_tx_state_s
- crc_errors : hdlc_rx_stats_t
- csa_type : t30_exchanged_info_t
- cur : faxtester_state_s
- cur_runs : t4_state_s
- curr_bad_row_run : t4_t6_decode_state_s
- current : playout_state_t
- current_byte : t31_audio_front_end_state_t
- current_digit : r2_mf_rx_state_s
- current_digits : bell_mf_rx_state_s, dtmf_rx_state_s
- current_fallback : t30_state_s
- current_get_bit : v17_tx_state_s, v22bis_state_s, v27ter_tx_state_s, v29_tx_state_s
- current_notch_filter : sig_tone_rx_state_s
- current_page : t4_state_s
- current_permitted_modems : t30_state_s
- current_rx_data_type : t38_core_state_s
- current_rx_field_class : t38_gateway_t38_state_t
- current_rx_field_type : t38_core_state_s
- current_rx_indicator : t38_core_state_s
- current_rx_tone : sig_tone_rx_state_s
- current_rx_type : fax_modems_state_s, faxtester_state_s, t30_state_s, t31_t38_front_end_state_t, t38_terminal_front_end_state_t
- current_sample : ademco_contactid_sender_state_s, bell_mf_rx_state_s, dtmf_rx_state_s, r2_mf_rx_state_s
- current_status : t30_state_s, t30_stats_t
- current_tx_data_type : t31_t38_front_end_state_t, t38_gateway_t38_state_t, t38_terminal_front_end_state_t
- current_tx_indicator : t38_core_state_s
- current_tx_timeout : sig_tone_tx_state_s
- current_tx_tone : sig_tone_tx_state_s
- current_tx_type : fax_modems_state_s, faxtester_state_s, t30_state_s, t31_t38_front_end_state_t, t38_terminal_front_end_state_t