# ACU_CALL_PROC_RQ

This topic describes:

- ACU_CALL_PROC_RQ protocol variants

- ACU_CALL_PROC_RQ macro descriptions and Q.931 IE

Note: Address parameters must be set according to the filling order. If one of them is unused, its size field must be set to 0.

#### Purpose

Requests events indicating the progress of a call.

#### Conn_id

An allocated call.

## ACU_CALL_PROC_RQ 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_rq_a_display, Acu_call_proc_rq_display_size Filling order: 1 |  |  |  |  | x |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_a_display_list |  |  |  |  | x |  |  |  |  | x | x |  |  |
Acu_call_proc_rq_a_ext_parms |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_a_pcs_user, Acu_call_proc_rq_pcs_user_size Filling order: 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_a_tsp_ie_list, Acu_call_proc_rq_tsp_ie_list_size Filling order: 3 | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_call_proc_rq_data_chani | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_call_proc_rq_data_chani_excl |  |  |  |  |  |  |  |  |  | x | x | x |  |
Acu_call_proc_rq_data_chani_nai |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_data_chani_nb | x | x | x | x | x | x | x | x | x |  |  |  |  | x
Acu_call_proc_rq_data_chani_tab[i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_data_chani_tab_nai[i] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_ext_parms_lgth |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_ext_parms_nb |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_progress_description |  |  |  | x | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_rq_progress_ind_nb |  |  |  | x | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_rq_progress_location |  |  |  | x | x | x |  |  |  | x | x |  |  | x
Acu_call_proc_rq_x_display_nb |  |  |  |  | x |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_x_display_size[i] |  |  |  |  | x |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_x_display_total_size |  |  |  |  | x |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_x_display_type[i] |  |  |  |  | x |  |  |  |  |  |  |  |  |
Acu_call_proc_rq_x_p_display[i] |  |  |  |  | x |  |  |  |  |  |  |  |  |

## ACU_CALL_PROC_RQ macro descriptions and Q.931 IE

Macro | Description | Q.931 IE
--- | --- | ---
Acu_call_proc_rq_a_display, Acu_call_proc_rq_display_size Filling order: 1 | Pointer to (and size of) buffer containing ISDN display information (optional). | Display
Acu_call_proc_rq_a_display_list | Pointer to display structure. | Display
Acu_call_proc_rq_a_ext_parms | Pointer to buffer containing extended parameters. | Not used.
Acu_call_proc_rq_a_pcs_user, Acu_call_proc_rq_pcs_user_size Filling order: 2 | 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_rq_a_tsp_ie_list, Acu_call_proc_rq_tsp_ie_list_size Filling order: 3 | Pointer to (and size of) transparent IE buffer. | Does not map to an IE.
Acu_call_proc_rq_data_chani | Data channel to use (B1, B2, ... D). | Channel identification
Acu_call_proc_rq_data_chani_excl | Channel IDs are preferred (OFF) or exclusive (ON). | Channel identification
Acu_call_proc_rq_data_chani_nai | NAI. | Channel identification
Acu_call_proc_rq_data_chani_nb | Number of channel IDs in the chani_list field. If no channel IDs, use 0. | Channel identification
Acu_call_proc_rq_data_chani_tab[i] | Channel ID i. | Channel identification
Acu_call_proc_rq_data_chani_tab_nai[i] | NAI i. | Channel identification
Acu_call_proc_rq_ext_parms_lgth | Total length of buffer containing extended parameters. | Not used.
Acu_call_proc_rq_ext_parms_nb | Number of parameters in buffer containing extended parameters. | Not used.
Acu_call_proc_rq_progress_description | Description for information element 0. See Progress description values for a list of valid values. | Progress indicator
Acu_call_proc_rq_progress_ind_nb | Number of progress indication information elements. | Progress indicator
Acu_call_proc_rq_progress_location | Location of information element 0. See Location values for a list of valid values and default setting information. | Progress indicator
Acu_call_proc_rq_x_display_nb | Number of present occurrences. | Display
Acu_call_proc_rq_x_display_size[i] | Size of occurrence i (optional). | Display
Acu_call_proc_rq_x_display_total_size | Total size of the stored strings. | Display
Acu_call_proc_rq_x_display_type[i] | Type of display i. | Display
Acu_call_proc_rq_x_p_display[i] | Pointer to occurrence i. | Display