SipTransferCallEventResult constructor Null safety

SipTransferCallEventResult(
  1. {String? event,
  2. int? referId,
  3. String? referTo,
  4. String? referredBy,
  5. String? replaces,
  6. String? headers}
)

Implementation

SipTransferCallEventResult(
    {this.event,
    this.referId,
    this.referTo,
    this.referredBy,
    this.replaces,
    this.headers});