feat: added support for TelephonyTransferCall in Participant Response…

…Message (#880)

PiperOrigin-RevId: 399792725
Source-Link: googleapis/googleapis@ee3c7eb
Source-Link: googleapis/googleapis-gen@9203bde
Copy-Tag: eyJwIjoiLmdpdGh1Yi8uT3dsQm90LnlhbWwiLCJoIjoiOTIwM2JkZTZlN2E0YTQ3YWFhY2IxNDAxZTcyYTI0MTcyZGM3MWQyMiJ9

packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/audio_config.proto

@@ -31,36 +31,6 @@ option java_outer_classname = "AudioConfigProto";
 option java_package = "com.google.cloud.dialogflow.v2beta1";
 option objc_class_prefix = "DF";
 
-// Hints for the speech recognizer to help with recognition in a specific
-// conversation state.
-message SpeechContext {
-  // Optional. A list of strings containing words and phrases that the speech
-  // recognizer should recognize with higher likelihood.
-  //
-  // This list can be used to:
-  //
-  // * improve accuracy for words and phrases you expect the user to say,
-  //   e.g. typical commands for your Dialogflow agent
-  // * add additional words to the speech recognizer vocabulary
-  // * ...
-  //
-  // See the [Cloud Speech
-  // documentation](https://cloud.google.com/speech-to-text/quotas) for usage
-  // limits.
-  repeated string phrases = 1;
-
-  // Optional. Boost for this context compared to other contexts:
-  //
-  // * If the boost is positive, Dialogflow will increase the probability that
-  //   the phrases in this context are recognized over similar sounding phrases.
-  // * If the boost is unspecified or non-positive, Dialogflow will not apply
-  //   any boost.
-  //
-  // Dialogflow recommends that you use boosts in the range (0, 20] and that you
-  // find a value that fits your use case with binary search.
-  float boost = 2;
-}
-
 // Audio encoding of the audio content sent in the conversational query request.
 // Refer to the
 // [Cloud Speech API
@@ -110,6 +80,36 @@ enum AudioEncoding {
   AUDIO_ENCODING_SPEEX_WITH_HEADER_BYTE = 7;
 }
 
+// Hints for the speech recognizer to help with recognition in a specific
+// conversation state.
+message SpeechContext {
+  // Optional. A list of strings containing words and phrases that the speech
+  // recognizer should recognize with higher likelihood.
+  //
+  // This list can be used to:
+  //
+  // * improve accuracy for words and phrases you expect the user to say,
+  //   e.g. typical commands for your Dialogflow agent
+  // * add additional words to the speech recognizer vocabulary
+  // * ...
+  //
+  // See the [Cloud Speech
+  // documentation](https://cloud.google.com/speech-to-text/quotas) for usage
+  // limits.
+  repeated string phrases = 1;
+
+  // Optional. Boost for this context compared to other contexts:
+  //
+  // * If the boost is positive, Dialogflow will increase the probability that
+  //   the phrases in this context are recognized over similar sounding phrases.
+  // * If the boost is unspecified or non-positive, Dialogflow will not apply
+  //   any boost.
+  //
+  // Dialogflow recommends that you use boosts in the range (0, 20] and that you
+  // find a value that fits your use case with binary search.
+  float boost = 2;
+}
+
 // Information for a word recognized by the speech recognizer.
 message SpeechWordInfo {
   // The word this info is for.

packages/google-cloud-dialogflow/protos/google/cloud/dialogflow/v2beta1/participant.proto

@@ -1044,6 +1044,20 @@ message ResponseMessage {
 
   }
 
+  // Represents the signal that telles the client to transfer the phone call
+  // connected to the agent to a third-party endpoint.
+  message TelephonyTransferCall {
+    // Endpoint to transfer the call to.
+    oneof endpoint {
+      // Transfer the call to a phone number
+      // in [E.164 format](https://en.wikipedia.org/wiki/E.164).
+      string phone_number = 1;
+
+      // Transfer the call to a SIP endpoint.
+      string sip_uri = 2;
+    }
+  }
+
   // Required. The rich response message.
   oneof message {
     // Returns a text response.
@@ -1058,5 +1072,9 @@ message ResponseMessage {
     // A signal that indicates the interaction with the Dialogflow agent has
     // ended.
     EndInteraction end_interaction = 4;
+
+    // A signal that the client should transfer the phone call connected to
+    // this agent to a third-party endpoint.
+    TelephonyTransferCall telephony_transfer_call = 6;
   }
 }