diff --git a/package-lock.json b/package-lock.json
index 6133ef9c6..527625e45 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -1,12 +1,12 @@
 {
   "name": "@vapi-ai/web",
-  "version": "2.3.7",
+  "version": "2.3.8",
   "lockfileVersion": 3,
   "requires": true,
   "packages": {
     "": {
       "name": "@vapi-ai/web",
-      "version": "2.3.7",
+      "version": "2.3.8",
       "license": "MIT",
       "dependencies": {
         "@daily-co/daily-js": "^0.80.0",
@@ -663,6 +663,91 @@
         "node": ">=12"
       }
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+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-6.1.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/ansi-styles": {
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+      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.1.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/emoji-regex": {
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+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-9.2.2.tgz",
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+      "dev": true,
+      "license": "MIT"
+    },
+    "node_modules/@isaacs/cliui/node_modules/string-width": {
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+      "resolved": "https://registry.npmjs.org/string-width/-/string-width-5.1.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
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+        "strip-ansi": "^7.0.1"
+      },
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+      },
+      "funding": {
+        "url": "https://github.com/sponsors/sindresorhus"
+      }
+    },
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+      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.0.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "ansi-regex": "^6.0.1"
+      },
+      "engines": {
+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
+      }
+    },
+    "node_modules/@isaacs/cliui/node_modules/wrap-ansi": {
+      "version": "8.1.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
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+      "dev": true,
+      "license": "MIT",
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+        "string-width": "^5.0.1",
+        "strip-ansi": "^7.0.1"
+      },
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+        "node": ">=12"
+      },
+      "funding": {
+        "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
+      }
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@@ -1706,16 +1791,13 @@
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+      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
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-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-regex?sponsor=1"
+        "node": ">=8"
       }
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@@ -1884,13 +1966,14 @@
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       "dev": true,
       "license": "MIT",
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-        "balanced-match": "^1.0.0"
+        "balanced-match": "^1.0.0",
+        "concat-map": "0.0.1"
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@@ -2137,69 +2220,6 @@
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-      "license": "MIT",
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-      "dev": true,
-      "license": "MIT"
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-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
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-      "license": "MIT",
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@@ -2414,9 +2434,9 @@
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-      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.175.tgz",
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+      "version": "1.5.174",
+      "resolved": "https://registry.npmjs.org/electron-to-chromium/-/electron-to-chromium-1.5.174.tgz",
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       "dev": true,
       "license": "ISC"
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@@ -2434,9 +2454,9 @@
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+      "version": "8.0.0",
+      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
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@@ -2537,13 +2557,6 @@
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-      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-3.0.7.tgz",
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-      "dev": true,
-      "license": "ISC"
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@@ -2613,6 +2626,16 @@
         "minimatch": "^5.0.1"
       }
     },
+    "node_modules/filelist/node_modules/brace-expansion": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
+      "integrity": "sha512-Jt0vHyM+jmUBqojB7E1NIYadt0vI0Qxjxd2TErW94wDz+E2LAm5vKMXXwg6ZZBTHPuUlDgQHKXvjGBdfcF1ZDQ==",
+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
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@@ -2670,6 +2693,19 @@
         "url": "https://github.com/sponsors/isaacs"
       }
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+    "node_modules/foreground-child/node_modules/signal-exit": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
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+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
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@@ -2774,6 +2810,32 @@
         "url": "https://github.com/sponsors/isaacs"
       }
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+    "node_modules/glob/node_modules/brace-expansion": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-2.0.2.tgz",
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+      "dev": true,
+      "license": "MIT",
+      "dependencies": {
+        "balanced-match": "^1.0.0"
+      }
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+    "node_modules/glob/node_modules/minimatch": {
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+      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-9.0.5.tgz",
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+      "dev": true,
+      "license": "ISC",
+      "dependencies": {
+        "brace-expansion": "^2.0.1"
+      },
+      "engines": {
+        "node": ">=16 || 14 >=14.17"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
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@@ -3050,30 +3112,6 @@
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@@ -3876,19 +3914,16 @@
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+        "brace-expansion": "^1.1.7"
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-      },
-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
+        "node": "*"
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@@ -4606,17 +4641,11 @@
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-      "funding": {
-        "url": "https://github.com/sponsors/isaacs"
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+      "license": "ISC"
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@@ -4683,45 +4712,19 @@
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-        "eastasianwidth": "^0.2.0",
-        "emoji-regex": "^9.2.2",
-        "strip-ansi": "^7.0.1"
+        "emoji-regex": "^8.0.0",
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+        "strip-ansi": "^6.0.1"
       },
       "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/sponsors/sindresorhus"
+        "node": ">=8"
       }
     },
     "node_modules/string-width-cjs": {
@@ -4740,24 +4743,7 @@
         "node": ">=8"
       }
     },
-    "node_modules/string-width-cjs/node_modules/ansi-regex": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
-      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/string-width-cjs/node_modules/emoji-regex": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
-      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
-      "license": "MIT"
-    },
-    "node_modules/string-width-cjs/node_modules/strip-ansi": {
+    "node_modules/strip-ansi": {
       "version": "6.0.1",
       "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
       "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
@@ -4770,22 +4756,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/strip-ansi": {
-      "version": "7.1.0",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-7.1.0.tgz",
-      "integrity": "sha512-iq6eVVI64nQQTRYq2KtEg2d2uU7LElhTJwsH4YzIHZshxlgZms/wIc4VoDQTlG/IvVIrBKG06CrZnp0qv7hkcQ==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^6.0.1"
-      },
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/strip-ansi?sponsor=1"
-      }
-    },
     "node_modules/strip-ansi-cjs": {
       "name": "strip-ansi",
       "version": "6.0.1",
@@ -4800,16 +4770,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/strip-ansi-cjs/node_modules/ansi-regex": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
-      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/strip-bom": {
       "version": "4.0.0",
       "resolved": "https://registry.npmjs.org/strip-bom/-/strip-bom-4.0.0.tgz",
@@ -4971,17 +4931,6 @@
         "node": ">=8"
       }
     },
-    "node_modules/test-exclude/node_modules/brace-expansion": {
-      "version": "1.1.12",
-      "resolved": "https://registry.npmjs.org/brace-expansion/-/brace-expansion-1.1.12.tgz",
-      "integrity": "sha512-9T9UjW3r0UW5c1Q7GTwllptXwhvYmEzFhzMfZ9H7FQWt+uZePjZPjBP/W1ZEyZ1twGWom5/56TF4lPcqjnDHcg==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "balanced-match": "^1.0.0",
-        "concat-map": "0.0.1"
-      }
-    },
     "node_modules/test-exclude/node_modules/glob": {
       "version": "7.2.3",
       "resolved": "https://registry.npmjs.org/glob/-/glob-7.2.3.tgz",
@@ -5004,19 +4953,6 @@
         "url": "https://github.com/sponsors/isaacs"
       }
     },
-    "node_modules/test-exclude/node_modules/minimatch": {
-      "version": "3.1.2",
-      "resolved": "https://registry.npmjs.org/minimatch/-/minimatch-3.1.2.tgz",
-      "integrity": "sha512-J7p63hRiAjw1NDEww1W7i37+ByIrOWO5XQQAzZ3VOcL0PNybwpfmV/N05zFAzwQ9USyEcX6t3UO+K5aqBQOIHw==",
-      "dev": true,
-      "license": "ISC",
-      "dependencies": {
-        "brace-expansion": "^1.1.7"
-      },
-      "engines": {
-        "node": "*"
-      }
-    },
     "node_modules/tinyexec": {
       "version": "0.3.2",
       "resolved": "https://registry.npmjs.org/tinyexec/-/tinyexec-0.3.2.tgz",
@@ -5359,18 +5295,18 @@
       }
     },
     "node_modules/wrap-ansi": {
-      "version": "8.1.0",
-      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-8.1.0.tgz",
-      "integrity": "sha512-si7QWI6zUMq56bESFvagtmzMdGOtoxfR+Sez11Mobfc7tm+VkUckk9bW2UeffTGVUbOksxmSw0AA2gs8g71NCQ==",
+      "version": "7.0.0",
+      "resolved": "https://registry.npmjs.org/wrap-ansi/-/wrap-ansi-7.0.0.tgz",
+      "integrity": "sha512-YVGIj2kamLSTxw6NsZjoBxfSwsn0ycdesmc4p+Q21c5zPuZ1pl+NfxVdxPtdHvmNVOQ6XSYG4AUtyt/Fi7D16Q==",
       "dev": true,
       "license": "MIT",
       "dependencies": {
-        "ansi-styles": "^6.1.0",
-        "string-width": "^5.0.1",
-        "strip-ansi": "^7.0.1"
+        "ansi-styles": "^4.0.0",
+        "string-width": "^4.1.0",
+        "strip-ansi": "^6.0.0"
       },
       "engines": {
-        "node": ">=12"
+        "node": ">=10"
       },
       "funding": {
         "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
@@ -5395,64 +5331,6 @@
         "url": "https://github.com/chalk/wrap-ansi?sponsor=1"
       }
     },
-    "node_modules/wrap-ansi-cjs/node_modules/ansi-regex": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
-      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/wrap-ansi-cjs/node_modules/emoji-regex": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
-      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
-      "license": "MIT"
-    },
-    "node_modules/wrap-ansi-cjs/node_modules/string-width": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
-      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "emoji-regex": "^8.0.0",
-        "is-fullwidth-code-point": "^3.0.0",
-        "strip-ansi": "^6.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/wrap-ansi-cjs/node_modules/strip-ansi": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
-      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^5.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/wrap-ansi/node_modules/ansi-styles": {
-      "version": "6.2.1",
-      "resolved": "https://registry.npmjs.org/ansi-styles/-/ansi-styles-6.2.1.tgz",
-      "integrity": "sha512-bN798gFfQX+viw3R7yrGWRqnrN2oRkEkUjjl4JNn4E8GxxbjtG3FbrEIIY3l8/hrwUwIeCZvi4QuOTP4MErVug==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=12"
-      },
-      "funding": {
-        "url": "https://github.com/chalk/ansi-styles?sponsor=1"
-      }
-    },
     "node_modules/wrappy": {
       "version": "1.0.2",
       "resolved": "https://registry.npmjs.org/wrappy/-/wrappy-1.0.2.tgz",
@@ -5474,6 +5352,19 @@
         "node": "^14.17.0 || ^16.13.0 || >=18.0.0"
       }
     },
+    "node_modules/write-file-atomic/node_modules/signal-exit": {
+      "version": "4.1.0",
+      "resolved": "https://registry.npmjs.org/signal-exit/-/signal-exit-4.1.0.tgz",
+      "integrity": "sha512-bzyZ1e88w9O1iNJbKnOlvYTrWPDl46O1bG0D3XInv+9tkPrxrN8jUUTiFlDkkmKWgn1M6CfIA13SuGqOa9Korw==",
+      "dev": true,
+      "license": "ISC",
+      "engines": {
+        "node": ">=14"
+      },
+      "funding": {
+        "url": "https://github.com/sponsors/isaacs"
+      }
+    },
     "node_modules/y18n": {
       "version": "5.0.8",
       "resolved": "https://registry.npmjs.org/y18n/-/y18n-5.0.8.tgz",
@@ -5530,51 +5421,6 @@
         "node": ">=12"
       }
     },
-    "node_modules/yargs/node_modules/ansi-regex": {
-      "version": "5.0.1",
-      "resolved": "https://registry.npmjs.org/ansi-regex/-/ansi-regex-5.0.1.tgz",
-      "integrity": "sha512-quJQXlTSUGL2LH9SUXo8VwsY4soanhgo6LNSm84E1LBcE8s3O0wpdiRzyR9z/ZZJMlMWv37qOOb9pdJlMUEKFQ==",
-      "dev": true,
-      "license": "MIT",
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/yargs/node_modules/emoji-regex": {
-      "version": "8.0.0",
-      "resolved": "https://registry.npmjs.org/emoji-regex/-/emoji-regex-8.0.0.tgz",
-      "integrity": "sha512-MSjYzcWNOA0ewAHpz0MxpYFvwg6yjy1NG3xteoqz644VCo/RPgnr1/GGt+ic3iJTzQ8Eu3TdM14SawnVUmGE6A==",
-      "dev": true,
-      "license": "MIT"
-    },
-    "node_modules/yargs/node_modules/string-width": {
-      "version": "4.2.3",
-      "resolved": "https://registry.npmjs.org/string-width/-/string-width-4.2.3.tgz",
-      "integrity": "sha512-wKyQRQpjJ0sIp62ErSZdGsjMJWsap5oRNihHhu6G7JVO/9jIB6UyevL+tXuOqrng8j/cxKTWyWUwvSTriiZz/g==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "emoji-regex": "^8.0.0",
-        "is-fullwidth-code-point": "^3.0.0",
-        "strip-ansi": "^6.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
-    "node_modules/yargs/node_modules/strip-ansi": {
-      "version": "6.0.1",
-      "resolved": "https://registry.npmjs.org/strip-ansi/-/strip-ansi-6.0.1.tgz",
-      "integrity": "sha512-Y38VPSHcqkFrCpFnQ9vuSXmquuv5oXOKpGeT6aGrr3o3Gc9AlVa6JBfUSOCnbxGGZF+/0ooI7KrPuUSztUdU5A==",
-      "dev": true,
-      "license": "MIT",
-      "dependencies": {
-        "ansi-regex": "^5.0.1"
-      },
-      "engines": {
-        "node": ">=8"
-      }
-    },
     "node_modules/yn": {
       "version": "3.1.1",
       "resolved": "https://registry.npmjs.org/yn/-/yn-3.1.1.tgz",
diff --git a/package.json b/package.json
index 305714ab4..88898949d 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@vapi-ai/web",
-  "version": "2.3.7",
+  "version": "2.3.8",
   "description": "",
   "main": "dist/vapi.js",
   "types": "dist/vapi.d.ts",
diff --git a/vapi.ts b/vapi.ts
index 60d8bb8b2..285363c81 100644
--- a/vapi.ts
+++ b/vapi.ts
@@ -55,7 +55,36 @@ type VapiEventNames =
   | 'message'
   | 'video'
   | 'error'
-  | 'daily-participant-updated';
+  | 'camera-error'
+  | 'network-quality-change'
+  | 'network-connection'
+  | 'daily-participant-updated'
+  | 'call-start-progress'
+  | 'call-start-success'
+  | 'call-start-failed';
+
+interface CallStartProgressEvent {
+  stage: string;
+  status: 'started' | 'completed' | 'failed';
+  duration?: number;
+  timestamp: string;
+  metadata?: Record<string, any>;
+}
+
+interface CallStartSuccessEvent {
+  totalDuration: number;
+  callId?: string;
+  timestamp: string;
+}
+
+interface CallStartFailedEvent {
+  stage: string;
+  totalDuration: number;
+  error: string;
+  errorStack?: string;
+  timestamp: string;
+  context: Record<string, any>;
+}
 
 type VapiEventListeners = {
   'call-end': () => void;
@@ -66,7 +95,13 @@ type VapiEventListeners = {
   video: (track: MediaStreamTrack) => void;
   message: (message: any) => void;
   error: (error: any) => void;
+  'camera-error': (error: any) => void;
+  'network-quality-change': (event: any) => void;
+  'network-connection': (event: any) => void;
   'daily-participant-updated': (participant: DailyParticipant) => void;
+  'call-start-progress': (event: CallStartProgressEvent) => void;
+  'call-start-success': (event: CallStartSuccessEvent) => void;
+  'call-start-failed': (event: CallStartFailedEvent) => void;
 };
 
 async function startAudioPlayer(
@@ -203,16 +238,53 @@ export default class Vapi extends VapiEventEmitter {
     workflow?: CreateWorkflowDTO | string,
     workflowOverrides?: WorkflowOverrides,
   ): Promise<Call | null> {
+    const startTime = Date.now();
+    
+    // Input validation with detailed error messages
     if (!assistant && !squad && !workflow) {
-      throw new Error('Assistant or Squad or Workflow must be provided.');
+      const error = new Error('Assistant or Squad or Workflow must be provided.');
+      this.emit('error', { 
+        type: 'validation-error', 
+        stage: 'input-validation',
+        message: error.message,
+        timestamp: new Date().toISOString()
+      });
+      throw error;
     }
 
     if (this.started) {
+      this.emit('call-start-progress', {
+        stage: 'validation',
+        status: 'failed',
+        timestamp: new Date().toISOString(),
+        metadata: { reason: 'already-started' }
+      });
       return null;
     }
+    
+    this.emit('call-start-progress', {
+      stage: 'initialization',
+      status: 'started',
+      timestamp: new Date().toISOString(),
+      metadata: {
+        hasAssistant: !!assistant,
+        hasSquad: !!squad,
+        hasWorkflow: !!workflow
+      }
+    });
+    
     this.started = true;
 
     try {
+            // Stage 1: Create web call
+      this.emit('call-start-progress', {
+        stage: 'web-call-creation',
+        status: 'started',
+        timestamp: new Date().toISOString()
+      });
+      
+      const webCallStartTime = Date.now();
+      
       const webCall = (
         await client.call.callControllerCreateWebCall({
           assistant: typeof assistant === 'string' ? undefined : assistant,
@@ -225,8 +297,27 @@ export default class Vapi extends VapiEventEmitter {
           workflowOverrides,
         })
       ).data;
+      
+      const webCallDuration = Date.now() - webCallStartTime;
+      this.emit('call-start-progress', {
+        stage: 'web-call-creation',
+        status: 'completed',
+        duration: webCallDuration,
+        timestamp: new Date().toISOString(),
+        metadata: {
+          callId: webCall?.id || 'unknown',
+          videoRecordingEnabled: webCall?.artifactPlan?.videoRecordingEnabled ?? false,
+          voiceProvider: webCall?.assistant?.voice?.provider || 'unknown'
+        }
+      });
 
       if (this.call) {
+        this.emit('call-start-progress', {
+          stage: 'daily-call-object-creation',
+          status: 'started',
+          timestamp: new Date().toISOString(),
+          metadata: { action: 'cleanup-existing' }
+        });
         this.cleanup();
       }
 
@@ -235,11 +326,53 @@ export default class Vapi extends VapiEventEmitter {
 
       const isVideoEnabled = webCall?.assistant?.voice?.provider === 'tavus';
 
-      this.call = DailyIframe.createCallObject({
-        audioSource: this.dailyCallObject.audioSource ?? true,
-        videoSource: this.dailyCallObject.videoSource ?? isVideoRecordingEnabled,
-        dailyConfig: this.dailyCallConfig,
+      // Stage 2: Create Daily call object
+      this.emit('call-start-progress', {
+        stage: 'daily-call-object-creation',
+        status: 'started',
+        timestamp: new Date().toISOString(),
+        metadata: {
+          audioSource: this.dailyCallObject.audioSource ?? true,
+          videoSource: this.dailyCallObject.videoSource ?? isVideoRecordingEnabled,
+          isVideoRecordingEnabled,
+          isVideoEnabled
+        }
       });
+      
+      const dailyCallStartTime = Date.now();
+      
+      try {
+        this.call = DailyIframe.createCallObject({
+          audioSource: this.dailyCallObject.audioSource ?? true,
+          videoSource: this.dailyCallObject.videoSource ?? isVideoRecordingEnabled,
+          dailyConfig: this.dailyCallConfig,
+        });
+        
+        const dailyCallDuration = Date.now() - dailyCallStartTime;
+        this.emit('call-start-progress', {
+          stage: 'daily-call-object-creation',
+          status: 'completed',
+          duration: dailyCallDuration,
+          timestamp: new Date().toISOString()
+        });
+      } catch (error) {
+        const dailyCallDuration = Date.now() - dailyCallStartTime;
+        this.emit('call-start-progress', {
+          stage: 'daily-call-object-creation',
+          status: 'failed',
+          duration: dailyCallDuration,
+          timestamp: new Date().toISOString(),
+          metadata: { error: error?.toString() }
+        });
+        this.emit('error', {
+          type: 'daily-call-object-creation-error',
+          stage: 'daily-call-object-creation',
+          error,
+          timestamp: new Date().toISOString()
+        });
+        throw error;
+      }
+      
       this.call.iframe()?.style.setProperty('display', 'none');
 
       this.call.on('left-meeting', () => {
@@ -266,7 +399,15 @@ export default class Vapi extends VapiEventEmitter {
       });
 
       this.call.on('camera-error', (error: any) => {
-        this.emit('error', error);
+        this.emit('camera-error', error);
+      });
+
+      this.call.on('network-quality-change', (event: any) => {
+        this.emit('network-quality-change', event);
+      });
+
+      this.call.on('network-connection', (event: any) => {
+        this.emit('network-connection', event);
       });
 
       this.call.on('track-started', async (e) => {
@@ -312,41 +453,182 @@ export default class Vapi extends VapiEventEmitter {
         destroyAudioPlayer(e.participant.session_id);
       });
 
-      // Allow mobile devices to finish processing the microphone permissions
-      // request before joining the call and playing the assistant's audio
-      if (this.isMobileDevice()) {
+      // Stage 3: Mobile device handling and permissions
+      const isMobile = this.isMobileDevice();
+      this.emit('call-start-progress', {
+        stage: 'mobile-permissions',
+        status: 'started',
+        timestamp: new Date().toISOString(),
+        metadata: { isMobile }
+      });
+      
+      if (isMobile) {
+        const mobileWaitStartTime = Date.now();
         await this.sleep(1000);
+        const mobileWaitDuration = Date.now() - mobileWaitStartTime;
+        this.emit('call-start-progress', {
+          stage: 'mobile-permissions',
+          status: 'completed',
+          duration: mobileWaitDuration,
+          timestamp: new Date().toISOString(),
+          metadata: { action: 'permissions-wait' }
+        });
+      } else {
+        this.emit('call-start-progress', {
+          stage: 'mobile-permissions',
+          status: 'completed',
+          timestamp: new Date().toISOString(),
+          metadata: { action: 'skipped-not-mobile' }
+        });
       }
 
-      await this.call.join({
-        // @ts-expect-error This exists
-        url: webCall.webCallUrl,
-        subscribeToTracksAutomatically: false,
+      // Stage 4: Join the call
+      this.emit('call-start-progress', {
+        stage: 'daily-call-join',
+        status: 'started',
+        timestamp: new Date().toISOString()
       });
+      
+      const joinStartTime = Date.now();
+      
+      try {
+        await this.call.join({
+          // @ts-expect-error This exists
+          url: webCall.webCallUrl,
+          subscribeToTracksAutomatically: false,
+        });
+        
+        const joinDuration = Date.now() - joinStartTime;
+        this.emit('call-start-progress', {
+          stage: 'daily-call-join',
+          status: 'completed',
+          duration: joinDuration,
+          timestamp: new Date().toISOString()
+        });
+      } catch (error) {
+        const joinDuration = Date.now() - joinStartTime;
+        this.emit('call-start-progress', {
+          stage: 'daily-call-join',
+          status: 'failed',
+          duration: joinDuration,
+          timestamp: new Date().toISOString(),
+          metadata: { error: error?.toString() }
+        });
+        this.emit('error', {
+          type: 'daily-call-join-error',
+          stage: 'daily-call-join',
+          error,
+          duration: joinDuration,
+          timestamp: new Date().toISOString()
+        });
+        throw error;
+      }
 
+      // Stage 5: Video recording setup (if enabled)
       if (isVideoRecordingEnabled) {
+        this.emit('call-start-progress', {
+          stage: 'video-recording-setup',
+          status: 'started',
+          timestamp: new Date().toISOString()
+        });
+        
         const recordingRequestedTime = new Date().getTime();
+        const recordingStartTime = Date.now();
 
-        this.call.startRecording({
-          width: 1280,
-          height: 720,
-          backgroundColor: '#FF1F2D3D',
-          layout: {
-            preset: 'default',
-          },
-        });
+        try {
+          this.call.startRecording({
+            width: 1280,
+            height: 720,
+            backgroundColor: '#FF1F2D3D',
+            layout: {
+              preset: 'default',
+            },
+          });
 
-        this.call.on('recording-started', () => {
-          this.send({
-            type: 'control',
-            control: 'say-first-message',
-            videoRecordingStartDelaySeconds:
-              (new Date().getTime() - recordingRequestedTime) / 1000,
+          const recordingSetupDuration = Date.now() - recordingStartTime;
+          this.emit('call-start-progress', {
+            stage: 'video-recording-setup',
+            status: 'completed',
+            duration: recordingSetupDuration,
+            timestamp: new Date().toISOString()
           });
+
+          this.call.on('recording-started', () => {
+            const totalRecordingDelay = (new Date().getTime() - recordingRequestedTime) / 1000;
+            this.emit('call-start-progress', {
+              stage: 'video-recording-started',
+              status: 'completed',
+              timestamp: new Date().toISOString(),
+              metadata: { delaySeconds: totalRecordingDelay }
+            });
+            
+            this.send({
+              type: 'control',
+              control: 'say-first-message',
+              videoRecordingStartDelaySeconds: totalRecordingDelay,
+            });
+          });
+        } catch (error) {
+          const recordingSetupDuration = Date.now() - recordingStartTime;
+          this.emit('call-start-progress', {
+            stage: 'video-recording-setup',
+            status: 'failed',
+            duration: recordingSetupDuration,
+            timestamp: new Date().toISOString(),
+            metadata: { error: error?.toString() }
+          });
+          this.emit('error', {
+            type: 'video-recording-setup-error',
+            stage: 'video-recording-setup',
+            error,
+            timestamp: new Date().toISOString()
+          });
+          // Don't throw here, video recording is optional
+        }
+      } else {
+        this.emit('call-start-progress', {
+          stage: 'video-recording-setup',
+          status: 'completed',
+          timestamp: new Date().toISOString(),
+          metadata: { action: 'skipped-not-enabled' }
         });
       }
 
-      this.call.startRemoteParticipantsAudioLevelObserver(100);
+      // Stage 6: Audio level observer setup
+      this.emit('call-start-progress', {
+        stage: 'audio-observer-setup',
+        status: 'started',
+        timestamp: new Date().toISOString()
+      });
+      
+      const audioObserverStartTime = Date.now();
+      
+      try {
+        this.call.startRemoteParticipantsAudioLevelObserver(100);
+        const audioObserverDuration = Date.now() - audioObserverStartTime;
+        this.emit('call-start-progress', {
+          stage: 'audio-observer-setup',
+          status: 'completed',
+          duration: audioObserverDuration,
+          timestamp: new Date().toISOString()
+        });
+      } catch (error) {
+        const audioObserverDuration = Date.now() - audioObserverStartTime;
+        this.emit('call-start-progress', {
+          stage: 'audio-observer-setup',
+          status: 'failed',
+          duration: audioObserverDuration,
+          timestamp: new Date().toISOString(),
+          metadata: { error: error?.toString() }
+        });
+        this.emit('error', {
+          type: 'audio-observer-setup-error',
+          stage: 'audio-observer-setup',
+          error,
+          timestamp: new Date().toISOString()
+        });
+        // Don't throw here, this is non-critical
+      }
 
       this.call.on('remote-participants-audio-level', (e) => {
         if (e) this.handleRemoteParticipantsAudioLevel(e);
@@ -371,18 +653,89 @@ export default class Vapi extends VapiEventEmitter {
         }
       });
 
-      this.call.updateInputSettings({
-        audio: {
-          processor: {
-            type: 'noise-cancellation',
+      // Stage 7: Audio processing setup
+      this.emit('call-start-progress', {
+        stage: 'audio-processing-setup',
+        status: 'started',
+        timestamp: new Date().toISOString()
+      });
+      
+      const audioProcessingStartTime = Date.now();
+      
+      try {
+        this.call.updateInputSettings({
+          audio: {
+            processor: {
+              type: 'noise-cancellation',
+            },
           },
-        },
+        });
+        
+        const audioProcessingDuration = Date.now() - audioProcessingStartTime;
+        this.emit('call-start-progress', {
+          stage: 'audio-processing-setup',
+          status: 'completed',
+          duration: audioProcessingDuration,
+          timestamp: new Date().toISOString()
+        });
+      } catch (error) {
+        const audioProcessingDuration = Date.now() - audioProcessingStartTime;
+        this.emit('call-start-progress', {
+          stage: 'audio-processing-setup',
+          status: 'failed',
+          duration: audioProcessingDuration,
+          timestamp: new Date().toISOString(),
+          metadata: { error: error?.toString() }
+        });
+        this.emit('error', {
+          type: 'audio-processing-setup-error',
+          stage: 'audio-processing-setup',
+          error,
+          timestamp: new Date().toISOString()
+        });
+        // Don't throw here, this is non-critical
+      }
+
+      const totalDuration = Date.now() - startTime;
+      this.emit('call-start-success', {
+        totalDuration,
+        callId: webCall?.id || 'unknown',
+        timestamp: new Date().toISOString()
       });
 
       return webCall;
     } catch (e) {
-      console.error(e);
-      this.emit('error', e);
+      const totalDuration = Date.now() - startTime;
+      
+      this.emit('call-start-failed', {
+        stage: 'unknown',
+        totalDuration,
+        error: e?.toString() || 'Unknown error occurred',
+        errorStack: e instanceof Error ? e.stack : 'No stack trace available',
+        timestamp: new Date().toISOString(),
+        context: {
+          hasAssistant: !!assistant,
+          hasSquad: !!squad,
+          hasWorkflow: !!workflow,
+          isMobile: this.isMobileDevice()
+        }
+      });
+      
+      // Also emit the generic error event for backward compatibility
+      this.emit('error', {
+        type: 'start-method-error',
+        stage: 'unknown',
+        error: e,
+        totalDuration,
+        timestamp: new Date().toISOString(),
+        context: {
+          hasAssistant: !!assistant,
+          hasSquad: !!squad,
+          hasWorkflow: !!workflow,
+          isMobile: this.isMobileDevice()
+        }
+      });
+      
       this.cleanup();
       return null;
     }