What it does
Explicit Communication Transfer (ECT) is an MMTel service that enables a party involved in a communication to transfer their role to a third party.
For this service there are three actors involved:
-
The transferor initiates the call transfer
-
The transferee is the other party on the call
-
The transfer target is the party that replaces the transferor in a call transfer.
The transferor invokes the ECT and the transferee replies back accordingly to transfer to the transfer target. The Rhino VoLTE TAS processes these messages to handle the call transfer while maintaining charging.
The Rhino VoLTE TAS’s ECT service supports either a consultative transfer or a blind transfer:
-
A consultative transfer is where the transferor has consultative communication with the transfer target before a transfer. This may involve an existing session between the transferor and transfer target before a call transfer.
-
A blind transfer is where the transferor has no consultative communication with the transfer target. The transferor invokes a call transfer with no current session between the transferor and the transfer target.
The Rhino VoLTE TAS supports a response timeout for requests generated by the transfer service.
If the parties' dialog is interrupted or removed during a call transfer, the Rhino VoLTE TAS’s ECT service initiates a new dialog to continue the transfer using third party call control procedures.
Configuration
Currently, the declarative configuration for the ECT service is only available through low-level overrides, which require the guidance of Metaswitch support.
To configure the service, contact your Metaswitch customer care representative.
|
Full declarative configuration support for this service may become available in a later version. |
