# Endpoint ID values

These values are defined in isdnacu.h.

Endpoint ID | Description
--- | ---
ACU_ACTION_NO_ENDPOINT_ID | Do not send any endpoint ID (ACU_CONN_RQ).
ACU_ACTION_SND_USID | SPID was OK; send the endpoint ID information.
ACU_ACTION_NO_SPID_NEGOTIATION | SPID negotiation is not supported.
ACU_ACTION_INVALID_SPID | The received SPID is invalid.
ACU_ACTION_PROMPT_INFO | Need a SPID from the terminal.
ACU_INTERPRETER_0 | Terminal is selected if it is assigned the indicated TID and USID value.
ACU_INTERPRETER_1 | Terminal is selected if it is not assigned the indicated TID but is assigned the indicated USID value.