# ACU_RESTART_IN

This topic describes:

- ACU_RESTART_IN protocol variants

- ACU_RESTART_IN macro descriptions and Q.931 IE

#### Purpose

Indicates that a RESTART ACKNOWLEDGE message has been received.

#### Conn_id

Unused.

## ACU_RESTART_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_restart_pref (RESTART for the B channel) | x | x |  | x |  |  |  |  |  |  |  |  |  |
Acu_restart_pref (RESTART for the interface) |  | x |  |  |  |  |  |  |  |  |  |  |  |
Acu_restart_int_id | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_restart_b_chan | x | x | x | x | x | x | x | x | x | x | x | x |  | x
Acu_restart_q931_size |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_restart_size |  |  |  |  |  |  |  |  |  |  |  |  |  |
Acu_restart_a_q931 |  |  |  |  |  |  |  |  |  |  |  |  |  |

## ACU_RESTART_IN macro descriptions and Q.931 IE

Macro | Description | Q.931 IE
--- | --- | ---
Acu_restart_pref | RESTART for the: B channel Interface | Channel identification
Acu_restart_int_id | NAI. | Channel identification
Acu_restart_b_chan | B channel. | Channel identification
Acu_restart_q931_size | Reserved for future use. | N/A
Acu_restart_size | Size of structure. | N/A
Acu_restart_a_q931 | Reserved for future use. | N/A