diff --git a/.changeset/lemon-ducks-smoke.md b/.changeset/lemon-ducks-smoke.md
new file mode 100644
index 00000000..724f68df
--- /dev/null
+++ b/.changeset/lemon-ducks-smoke.md
@@ -0,0 +1,6 @@
+---
+"agent-dispatch": patch
+"livekit-server-sdk": patch
+---
+
+Add support for destination_country in outbound trunk
diff --git a/examples/agent-dispatch/package.json b/examples/agent-dispatch/package.json
index 40ed26c1..4fe1706e 100644
--- a/examples/agent-dispatch/package.json
+++ b/examples/agent-dispatch/package.json
@@ -14,7 +14,7 @@
   "dependencies": {
     "dotenv": "^16.4.5",
     "livekit-server-sdk": "workspace:*",
-    "@livekit/protocol": "^1.30.0"
+    "@livekit/protocol": "^1.39.0"
   },
   "devDependencies": {
     "@types/node": "^20.10.4",
diff --git a/packages/livekit-server-sdk/package.json b/packages/livekit-server-sdk/package.json
index d0497266..fdc7c2db 100644
--- a/packages/livekit-server-sdk/package.json
+++ b/packages/livekit-server-sdk/package.json
@@ -43,7 +43,7 @@
   },
   "dependencies": {
     "@bufbuild/protobuf": "^1.7.2",
-    "@livekit/protocol": "^1.38.0",
+    "@livekit/protocol": "^1.39.0",
     "camelcase-keys": "^9.0.0",
     "jose": "^5.1.2"
   },
diff --git a/packages/livekit-server-sdk/src/SipClient.ts b/packages/livekit-server-sdk/src/SipClient.ts
index 77094429..5f1d3a61 100644
--- a/packages/livekit-server-sdk/src/SipClient.ts
+++ b/packages/livekit-server-sdk/src/SipClient.ts
@@ -81,6 +81,7 @@ export interface CreateSipInboundTrunkOptions {
 export interface CreateSipOutboundTrunkOptions {
   metadata?: string;
   transport: SIPTransport;
+  destinationCountry?: string;
   /** @deprecated - use `authUsername` instead */
   auth_username?: string;
   authUsername?: string;
@@ -176,7 +177,7 @@ export interface SipDispatchRuleUpdateOptions {
   attributes?: { [key: string]: string };
 }
 
-export interface SipTrunkUpdateOptions {
+export interface SipInboundTrunkUpdateOptions {
   numbers?: ListUpdate;
   allowedAddresses?: ListUpdate;
   allowedNumbers?: ListUpdate;
@@ -186,6 +187,17 @@ export interface SipTrunkUpdateOptions {
   metadata?: string;
 }
 
+export interface SipOutboundTrunkUpdateOptions {
+  numbers?: ListUpdate;
+  allowedAddresses?: ListUpdate;
+  allowedNumbers?: ListUpdate;
+  authUsername?: string;
+  authPassword?: string;
+  destinationCountry?: string;
+  name?: string;
+  metadata?: string;
+}
+
 export interface TransferSipParticipantOptions {
   playDialtone?: boolean;
   headers?: { [key: string]: string };
@@ -331,6 +343,7 @@ export class SipClient extends ServiceBase {
         headers: opts.headers,
         headersToAttributes: opts.headersToAttributes,
         includeHeaders: opts.includeHeaders,
+        destinationCountry: opts.destinationCountry,
       }),
     }).toJson();
 
@@ -562,7 +575,7 @@ export class SipClient extends ServiceBase {
    */
   async updateSipInboundTrunkFields(
     sipTrunkId: string,
-    fields: SipTrunkUpdateOptions,
+    fields: SipInboundTrunkUpdateOptions,
   ): Promise<SIPInboundTrunkInfo> {
     const req = new UpdateSIPInboundTrunkRequest({
       sipTrunkId,
@@ -621,7 +634,7 @@ export class SipClient extends ServiceBase {
    */
   async updateSipOutboundTrunkFields(
     sipTrunkId: string,
-    fields: SipTrunkUpdateOptions,
+    fields: SipOutboundTrunkUpdateOptions,
   ): Promise<SIPOutboundTrunkInfo> {
     const req = new UpdateSIPOutboundTrunkRequest({
       sipTrunkId,
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 44323453..a1096046 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -75,8 +75,8 @@ importers:
   examples/agent-dispatch:
     dependencies:
       '@livekit/protocol':
-        specifier: ^1.30.0
-        version: 1.35.0
+        specifier: ^1.39.0
+        version: 1.39.0
       dotenv:
         specifier: ^16.4.5
         version: 16.4.5
@@ -270,8 +270,8 @@ importers:
         specifier: ^1.7.2
         version: 1.10.0
       '@livekit/protocol':
-        specifier: ^1.38.0
-        version: 1.38.0
+        specifier: ^1.39.0
+        version: 1.39.0
       camelcase-keys:
         specifier: ^9.0.0
         version: 9.1.3
@@ -1161,11 +1161,8 @@ packages:
   '@livekit/mutex@1.1.1':
     resolution: {integrity: sha512-EsshAucklmpuUAfkABPxJNhzj9v2sG7JuzFDL4ML1oJQSV14sqrpTYnsaOudMAw9yOaW53NU3QQTlUQoRs4czw==}
 
-  '@livekit/protocol@1.35.0':
-    resolution: {integrity: sha512-uVVfQQr9JlsE+WBKbMgMdsxuVCG2zYkcE52bOjRQiGQvdbj9dm90A7sy+G7Vrb0QPGaN30xlI7nvtKpcGqw9Nw==}
-
-  '@livekit/protocol@1.38.0':
-    resolution: {integrity: sha512-XX6ulvsE1XCN18LVf3ydHN7Ri1Z1M1P5dQdjnm5nVDsSqUL12Vbo/4RKcRlCEXAg2qB62mKjcaVLXVwkfXggkg==}
+  '@livekit/protocol@1.39.0':
+    resolution: {integrity: sha512-Zar6711kJk1MjI+63DJoyCxv8deNphIIan7tK9C5f+Zy3v2Pvjs6Yz7cFoOeDK/rY7b7deA2wfYxUi2S5XLp7w==}
 
   '@livekit/typed-emitter@3.0.0':
     resolution: {integrity: sha512-9bl0k4MgBPZu3Qu3R3xy12rmbW17e3bE9yf4YY85gJIQ3ezLEj/uzpKHWBsLaDoL5Mozz8QCgggwIBudYQWeQg==}
@@ -4982,11 +4979,7 @@ snapshots:
 
   '@livekit/mutex@1.1.1': {}
 
-  '@livekit/protocol@1.35.0':
-    dependencies:
-      '@bufbuild/protobuf': 1.10.0
-
-  '@livekit/protocol@1.38.0':
+  '@livekit/protocol@1.39.0':
     dependencies:
       '@bufbuild/protobuf': 1.10.0