public sealed class ResponseMessage.Types.TelephonyTransferCall : IMessage<ResponseMessage.Types.TelephonyTransferCall>, IEquatable<ResponseMessage.Types.TelephonyTransferCall>, IDeepCloneable<ResponseMessage.Types.TelephonyTransferCall>, IBufferMessage, IMessage
Reference documentation and code samples for the Dialogflow v3 API class ResponseMessage.Types.TelephonyTransferCall.
Represents the signal that telles the client to transfer the phone call
connected to the agent to a third-party endpoint.
[[["Easy to understand","easyToUnderstand","thumb-up"],["Solved my problem","solvedMyProblem","thumb-up"],["Other","otherUp","thumb-up"]],[["Missing the information I need","missingTheInformationINeed","thumb-down"],["Too complicated / too many steps","tooComplicatedTooManySteps","thumb-down"],["Out of date","outOfDate","thumb-down"],["Samples / code issue","samplesCodeIssue","thumb-down"],["Other","otherDown","thumb-down"]],["Last updated 2025-08-07 UTC."],[[["\u003cp\u003eThe content provides reference documentation for the \u003ccode\u003eResponseMessage.Types.TelephonyTransferCall\u003c/code\u003e class within the Dialogflow v3 API, available across multiple versions.\u003c/p\u003e\n"],["\u003cp\u003eThe latest version of the \u003ccode\u003eTelephonyTransferCall\u003c/code\u003e class is 2.23.0, and the documentation details its usage for transferring phone calls to third-party endpoints.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTelephonyTransferCall\u003c/code\u003e class implements multiple interfaces, including \u003ccode\u003eIMessage\u003c/code\u003e, \u003ccode\u003eIEquatable\u003c/code\u003e, \u003ccode\u003eIDeepCloneable\u003c/code\u003e, and \u003ccode\u003eIBufferMessage\u003c/code\u003e.\u003c/p\u003e\n"],["\u003cp\u003eThe class has constructors and properties, including the ability to set a phone number for call transfer, and an \u003ccode\u003eEndpointCase\u003c/code\u003e property to manage different types of endpoints.\u003c/p\u003e\n"],["\u003cp\u003eThe \u003ccode\u003eTelephonyTransferCall\u003c/code\u003e class is part of the \u003ccode\u003eGoogle.Cloud.Dialogflow.Cx.V3\u003c/code\u003e namespace, and is contained within the \u003ccode\u003eGoogle.Cloud.Dialogflow.Cx.V3.dll\u003c/code\u003e assembly.\u003c/p\u003e\n"]]],[],null,["# Dialogflow v3 API - Class ResponseMessage.Types.TelephonyTransferCall (2.24.0)\n\nVersion latestkeyboard_arrow_down\n\n- [2.24.0 (latest)](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.23.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.23.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.22.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.22.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.21.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.21.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.20.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.20.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.19.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.19.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.18.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.18.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.17.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.17.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.16.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.16.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.15.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.15.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.14.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.14.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.13.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.13.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.12.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.12.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.11.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.11.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.10.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.10.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.9.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.9.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.8.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.8.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.7.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.7.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.6.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.6.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.5.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.5.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.4.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.4.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.3.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.3.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.2.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.2.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.1.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.1.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [2.0.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/2.0.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.13.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.13.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.12.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.12.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.11.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.11.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.10.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.10.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.9.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.9.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.8.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.8.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.7.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.7.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.6.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.6.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.5.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.5.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.4.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.4.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.3.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.3.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.2.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.2.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.1.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.1.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall)\n- [1.0.0](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/1.0.0/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall) \n\n public sealed class ResponseMessage.Types.TelephonyTransferCall : IMessage\u003cResponseMessage.Types.TelephonyTransferCall\u003e, IEquatable\u003cResponseMessage.Types.TelephonyTransferCall\u003e, IDeepCloneable\u003cResponseMessage.Types.TelephonyTransferCall\u003e, IBufferMessage, IMessage\n\nReference documentation and code samples for the Dialogflow v3 API class ResponseMessage.Types.TelephonyTransferCall.\n\nRepresents the signal that telles the client to transfer the phone call\nconnected to the agent to a third-party endpoint. \n\nInheritance\n-----------\n\n[object](https://learn.microsoft.com/dotnet/api/system.object) \\\u003e ResponseMessage.Types.TelephonyTransferCall \n\nImplements\n----------\n\n[IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage-1.html)[ResponseMessage](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage)[Types](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types)[TelephonyTransferCall](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall), [IEquatable](https://learn.microsoft.com/dotnet/api/system.iequatable-1)[ResponseMessage](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage)[Types](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types)[TelephonyTransferCall](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall), [IDeepCloneable](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IDeepCloneable-1.html)[ResponseMessage](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage)[Types](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types)[TelephonyTransferCall](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3.ResponseMessage.Types.TelephonyTransferCall), [IBufferMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IBufferMessage.html), [IMessage](https://cloud.google.com/dotnet/docs/reference/Google.Protobuf/latest/Google.Protobuf.IMessage.html) \n\nInherited Members\n-----------------\n\n[object.GetHashCode()](https://learn.microsoft.com/dotnet/api/system.object.gethashcode) \n[object.GetType()](https://learn.microsoft.com/dotnet/api/system.object.gettype) \n[object.ToString()](https://learn.microsoft.com/dotnet/api/system.object.tostring)\n\nNamespace\n---------\n\n[Google.Cloud.Dialogflow.Cx.V3](/dotnet/docs/reference/Google.Cloud.Dialogflow.Cx.V3/latest/Google.Cloud.Dialogflow.Cx.V3)\n\nAssembly\n--------\n\nGoogle.Cloud.Dialogflow.Cx.V3.dll\n\nConstructors\n------------\n\n### TelephonyTransferCall()\n\n public TelephonyTransferCall()\n\n### TelephonyTransferCall(TelephonyTransferCall)\n\n public TelephonyTransferCall(ResponseMessage.Types.TelephonyTransferCall other)\n\nProperties\n----------\n\n### EndpointCase\n\n public ResponseMessage.Types.TelephonyTransferCall.EndpointOneofCase EndpointCase { get; }\n\n### HasPhoneNumber\n\n public bool HasPhoneNumber { get; }\n\nGets whether the \"phone_number\" field is set\n\n### PhoneNumber\n\n public string PhoneNumber { get; set; }\n\nTransfer the call to a phone number\nin [E.164 format](https://en.wikipedia.org/wiki/E.164)."]]