The Call_Alerting call-progress event message tells a program that a telephone call has been assigned to a telephone, and the telephone is being alerted.
The following table shows the DEFINITY G3 support for Call_Alerting:
| Fields | Notes |
|---|---|
| version_number | Fully supported |
| switch_ID | Fully supported |
| timestamp | STRUCTURE (Time_And_Date); partially supported; see page "Time_And_Date" |
| calling_party_info | STRUCTURE (Party_Structure); partially supported; see page "Party_Structure" |
| call_type |
|
| STL_VOICE | Supported |
| STL_DATA | Not supported |
| billed_party_length | Value is 0 |
| billed_party | Not supported |
| call_extension_indicator | Fully supported |
| track_call_party_length | Value is 0-19 |
| track_call_party | Used when track_call_party_length > 0 |
| alerting_party_count | Value is 1-8 |
| alerting_party_list | STRUCTURE (Party_Structure); partially supported; see page "Party_Structure" |
| program_data_length | Value is 0-32 or 0-96 |
| program_data | Fully supported |
| alert_reason |
|
| STL_ALERT_NOT_SPECIFIED | Supported |
| STL_CALL_BACK | Not supported |
| STL_ALERT_REMAINS_QUEUED | Supported |
| related_call_party_count | Not supported |
| related_call_party_list | Not supported |
| billing_change | Supported |