# ACU_CALL_PROC_IN

This topic describes:

- ACU_CALL_PROC_IN protocol variants

- ACU_CALL_PROC_IN macro descriptions and Q.931 IE

#### Purpose

Indicates incoming call proceeding information (receipt of SETUP ACK, CALL PROCEEDING messages).

#### Conn_id

An allocated call.

## ACU_CALL_PROC_IN protocol variants

The following table lists the variants under which each macro is supported for this primitive. In this table, x indicates both NT and TE sides.

Macro | 4 E S S | E 1 0 | N I 2 | D M S | E T S I | V N 6 | H K G | A U S T E L 1 | N T T | K O R E A | T A I W A N | Q S I G | D P N S S | T 1 6 0 7
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Acu_call_proc_in_a_display, Acu_call_proc_in_display_size |  |  | x |  | x | x |  | x | x | x | x |  |  | x
Acu_call_proc_in_a_display_list |  |  | x |  | x | x |  | x | x | x | x |  |  | x
Acu_call_proc_in_a_ext_parms |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_a_facility, Acu_call_proc_in_facility_size |  |  |  |  | x |  |  |  |  | x | x |  |  |
Acu_call_proc_in_a_pcs_user, Acu_call_proc_in_pcs_user_size |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_a_q931, Acu_call_proc_in_q931_size | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_call_proc_in_call_ref_length |  |  | x |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_call_ref_value |  |  | x |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_cause |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_data_chani | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_call_proc_in_data_chani_excl |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_data_chani_nai |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_data_chani_nb |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_data_chani_tab[i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_data_chani_tab_nai[i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_ext_parms_lgth |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_ext_parms_nb |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_progress_descr_x [i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_progress_description |  |  |  |  | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_in_progress_ind_nb |  |  |  |  | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_in_progress_loc_x [i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_progress_location |  |  |  |  | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_in_signal_val |  |  | x |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_in_x_display_nb |  |  | x |  | x | x |  | x | x | x | x |  |  |
Acu_call_proc_in_x_display_size[i] |  |  | x |  | x | x |  | x | x | x | x |  |  |
Acu_call_proc_in_x_display_total_size |  |  | x |  | x | x |  | x | x | x | x |  |  |
Acu_call_proc_in_x_display_type[i] |  |  | x |  | x | x |  | x | x | x | x |  |  |
Acu_call_proc_in_x_p_display[i] |  |  | x |  | x | x |  | x | x | x | x |  |  |

## ACU_CALL_PROC_IN macro descriptions and Q.931 IE

Macro | Description | Q.931 IE
--- | --- | ---
Acu_call_proc_in_a_display, Acu_call_proc_in_display_size | Pointer to (and size of) buffer containing ISDN display information (optional). | Display
Acu_call_proc_in_a_display_list | Pointer to display structure. | Display
Acu_call_proc_in_a_ext_parms | Pointer to buffer containing extended parameters. | Not used.
Acu_call_proc_in_a_facility, Acu_call_proc_in_facility_size | Pointer to (and size of) buffer containing ISDN facility information (optional). | Facility
Acu_call_proc_in_a_pcs_user, Acu_call_proc_in_pcs_user_size | Pointer to (and size of) buffer containing ISDN PCS-to-user/user-to-PCS information. See PCS-user information elements for more information on this IE. | PCS-User
Acu_call_proc_in_a_q931, Acu_call_proc_in_q931_size | Pointer to (and size of) buffer containing raw data of incoming Q.931 message. | Does not map to an IE.
Acu_call_proc_in_call_ref_length | Length of call reference value. | Call reference
Acu_call_proc_in_call_ref_value | Call reference value and call reference flag. | Call reference
Acu_call_proc_in_cause | Cause value. | Cause
Acu_call_proc_in_data_chani | Data channel to use (B1, B2, ... D). | Channel identification
Acu_call_proc_in_data_chani_excl | Channel IDs are preferred (OFF) or exclusive (ON). | Channel identification
Acu_call_proc_in_data_chani_nai | NAI. | Channel identification
Acu_call_proc_in_data_chani_nb | Number of channel IDs in the chani_list field. If no channel IDs, use 0. | Channel identification
Acu_call_proc_in_data_chani_tab[i] | Channel ID i. | Channel identification
Acu_call_proc_in_data_chani_tab_nai[i] | NAI i. | Channel identification
Acu_call_proc_in_ext_parms_lgth | Total length of buffer containing extended parameters. | Not used.
Acu_call_proc_in_ext_parms_nb | Number of parameters in buffer containing extended parameters. | Not used.
Acu_call_proc_in_progress_descr_x [i] | Description for information element i. See Progress description values for a list of valid values. | Progress indicator
Acu_call_proc_in_progress_description | Description for information element 0. See Progress description values for a list of valid values. | Progress indicator
Acu_call_proc_in_progress_ind_nb | Number of progress indication information elements. | Progress indicator
Acu_call_proc_in_progress_loc_x [i] | Location of information element i. See Location values for a list of valid values. | Progress indicator
Acu_call_proc_in_progress_location | Location of information element 0. See Location values for a list of valid values. | Progress indicator
Acu_call_proc_in_signal_val | Signal value. See Signal values for a list of valid values. | Signal value
Acu_call_proc_in_x_display_nb | Number of present occurrences. | Display
Acu_call_proc_in_x_display_size[i] | Size of occurrence i (optional). | Display
Acu_call_proc_in_x_display_total_size | Total size of the stored strings. | Display
Acu_call_proc_in_x_display_type[i] | Type of display i. | Display
Acu_call_proc_in_x_p_display[i] | Pointer to occurrence i. | Display