Update call-forwarding.mdx

Author: sahilsuman933

call-forwarding.mdx

@@ -29,17 +29,17 @@ The `transferCall` tool includes a list of destinations and corresponding messag
       "type": "transferCall",
       "destinations": [
         {
-          "type": "phoneNumber",
+          "type": "number",
           "number": "+1234567890",
           "message": "I am forwarding your call to Department A. Please stay on the line."
         },
         {
-          "type": "phoneNumber",
+          "type": "number",
           "number": "+0987654321",
           "message": "I am forwarding your call to Department B. Please stay on the line."
         },
         {
-          "type": "phoneNumber",
+          "type": "number",
           "number": "+1122334455",
           "message": "I am forwarding your call to Department C. Please stay on the line."
         }
@@ -158,4 +158,4 @@ Use the system prompt to guide the assistant on when to utilize each forwarding
 - Ensure you have written the function description properly to indicate where you want to forward the call
 - Test the call forwarding setup thoroughly to confirm its functionality.
 
-By following these guidelines and utilizing the `transferCall` tool, you can effectively manage call routing and provide a seamless experience for your users.
+By following these guidelines and utilizing the `transferCall` tool, you can effectively manage call routing and provide a seamless experience for your users.