diff --git a/src/Infrastructure/BotSharp.Core/Routing/Handlers/RouteToAgentRoutingHandler.cs b/src/Infrastructure/BotSharp.Core/Routing/Handlers/RouteToAgentRoutingHandler.cs
index 6faf6471a..94539b9b8 100644
--- a/src/Infrastructure/BotSharp.Core/Routing/Handlers/RouteToAgentRoutingHandler.cs
+++ b/src/Infrastructure/BotSharp.Core/Routing/Handlers/RouteToAgentRoutingHandler.cs
@@ -11,18 +11,18 @@ public class RouteToAgentRoutingHandler : RoutingHandlerBase, IRoutingHandler
 
     public List<ParameterPropertyDef> Parameters => new List<ParameterPropertyDef>
     {
-        /*new ParameterPropertyDef("next_action_reason", 
+        new ParameterPropertyDef("next_action_reason", 
             "the reason why route to this virtual agent.", 
-            required: true),*/
+            required: true),
         new ParameterPropertyDef("next_action_agent", 
             "agent for next action based on user latest response, if user is replying last agent's question, you must route to this agent.", 
             required: true),
         new ParameterPropertyDef("args",
             "useful parameters of next action agent, format: { }",
             type: "object"),
-        /*new ParameterPropertyDef("user_goal_description", 
+        new ParameterPropertyDef("user_goal_description", 
             "user goal based on user initial task.", 
-            required: true),*/
+            required: true),
         new ParameterPropertyDef("user_goal_agent",
             "agent who can acheive user initial task.", 
             required: true),
diff --git a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-0af7-49e6-ad7a-a760bd12dc4d/agent.json b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-0af7-49e6-ad7a-a760bd12dc4d/agent.json
index a7fd580e6..c54a67e00 100644
--- a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-0af7-49e6-ad7a-a760bd12dc4d/agent.json
+++ b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-0af7-49e6-ad7a-a760bd12dc4d/agent.json
@@ -7,5 +7,9 @@
   "updatedDateTime": "2024-05-07T10:00:00Z",
   "disabled": false,
   "isPublic": true,
+  "llmConfig": {
+    "provider": "openai",
+    "model": "gpt-4o-mini"
+  },
   "profiles": [ "fallback" ]
 }
diff --git a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/instructions/instruction.liquid b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/instructions/instruction.liquid
index 182a25841..bc614f81e 100644
--- a/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/instructions/instruction.liquid
+++ b/src/Infrastructure/BotSharp.Core/data/agents/01fcc3e5-9af7-49e6-ad7a-a760bd12dc4a/instructions/instruction.liquid
@@ -19,6 +19,7 @@ Follow these steps to handle user request:
 # {{ handler.description}}
 {% if handler.parameters and handler.parameters != empty -%}
 Parameters: 
+    - function: {{ handler.name }}
     {% for p in handler.parameters -%}
     - {{ p.name }} {% if p.required -%}(required){%- endif %}: {{ p.description }}{{ "\r\n    " }}
     {%- endfor %}
diff --git a/src/Plugins/BotSharp.Plugin.Twilio/Controllers/TwilioVoiceController.cs b/src/Plugins/BotSharp.Plugin.Twilio/Controllers/TwilioVoiceController.cs
index 9521e8ff0..a89c64648 100644
--- a/src/Plugins/BotSharp.Plugin.Twilio/Controllers/TwilioVoiceController.cs
+++ b/src/Plugins/BotSharp.Plugin.Twilio/Controllers/TwilioVoiceController.cs
@@ -47,15 +47,16 @@ public async Task<TwiMLResult> ReceiveCallerMessage([FromRoute] string conversat
         var messageQueue = _services.GetRequiredService<TwilioMessageQueue>();
         var sessionManager = _services.GetRequiredService<ITwilioSessionManager>();
         var messages = await sessionManager.RetrieveStagedCallerMessagesAsync(conversationId, seqNum);
-        if (!string.IsNullOrWhiteSpace(request.SpeechResult))
+        string text = (request.SpeechResult + "\r\n" + request.Digits).Trim();
+        if (!string.IsNullOrWhiteSpace(text))
         {
-            messages.Add(request.SpeechResult);
-            await sessionManager.StageCallerMessageAsync(conversationId, seqNum, request.SpeechResult);
+            messages.Add(text);
+            await sessionManager.StageCallerMessageAsync(conversationId, seqNum, text);
         }
         VoiceResponse response;
         if (messages.Count == 0 && seqNum == 0)
         { 
-            response = twilio.ReturnInstructions("twilio/welcome.mp3", $"twilio/voice/{conversationId}/receive/{seqNum}?states={states}", true);
+            response = twilio.ReturnInstructions("twilio/welcome.mp3", $"twilio/voice/{conversationId}/receive/{seqNum}?states={states}", true, timeout: 2);
         }
         else
         {
diff --git a/src/Plugins/BotSharp.Plugin.Twilio/Services/TwilioService.cs b/src/Plugins/BotSharp.Plugin.Twilio/Services/TwilioService.cs
index 718741a1c..309d627c8 100644
--- a/src/Plugins/BotSharp.Plugin.Twilio/Services/TwilioService.cs
+++ b/src/Plugins/BotSharp.Plugin.Twilio/Services/TwilioService.cs
@@ -54,7 +54,8 @@ public VoiceResponse ReturnInstructions(string message)
         {
             Input = new List<Gather.InputEnum>()
             {
-                Gather.InputEnum.Speech
+                Gather.InputEnum.Speech,
+                Gather.InputEnum.Dtmf
             },
             Action = new Uri($"{_settings.CallbackHost}/twilio/voice/{twilioSetting.AgentId}")
         };
@@ -70,7 +71,8 @@ public VoiceResponse ReturnInstructions(string speechPath, string callbackPath,
         {
             Input = new List<Gather.InputEnum>()
             {
-                Gather.InputEnum.Speech
+                Gather.InputEnum.Speech,
+                Gather.InputEnum.Dtmf
             },
             Action = new Uri($"{_settings.CallbackHost}/{callbackPath}"),
             SpeechModel = Gather.SpeechModelEnum.PhoneCall,
@@ -109,7 +111,11 @@ public VoiceResponse HoldOn(int interval, string message = null)
         var response = new VoiceResponse();
         var gather = new Gather()
         {
-            Input = new List<Gather.InputEnum>() { Gather.InputEnum.Speech },
+            Input = new List<Gather.InputEnum>() 
+            { 
+                Gather.InputEnum.Speech,
+                Gather.InputEnum.Dtmf
+            },
             Action = new Uri($"{_settings.CallbackHost}/twilio/voice/{twilioSetting.AgentId}"),
             ActionOnEmptyResult = true
         };