Call holding, retrieval, and transfer events

Event

Informational/
Transitional

Solicited/
Unsolicited

Indicates that...

NCCEVN_CALL_HELD

Transitional

Solicited/

Unsolicited

A call was placed on hold by the application or by a remote party.

NCCEVN_CALL_RETRIEVED

Transitional

Solicited/

Unsolicited

A held call was retrieved by the application or by a remote party.

NCCEVN_HOLD_REJECTED

Informational

Solicited

A request to put a call on hold was rejected.

NCCEVN_CALLID_AVAILABLE

Informational

Unsolicited

A call identifier used to identify a call in two channel transfer is available.

NCCEVN_RETRIEVE_REJECTED

Informational

Solicited

A retrieve call request was rejected.