From 09a4289639b78e768472b00454cbc9ea567711ac Mon Sep 17 00:00:00 2001
From: Alex <alex.migolin@livekit.io>
Date: Thu, 26 Mar 2026 09:48:42 -0700
Subject: [PATCH] Exposing optional TransferSipParticipant.ringingTimeout

---
 .changeset/afraid-garlics-brush.md           | 5 +++++
 packages/livekit-server-sdk/src/SipClient.ts | 5 +++++
 2 files changed, 10 insertions(+)
 create mode 100644 .changeset/afraid-garlics-brush.md

diff --git a/.changeset/afraid-garlics-brush.md b/.changeset/afraid-garlics-brush.md
new file mode 100644
index 00000000..f1843a65
--- /dev/null
+++ b/.changeset/afraid-garlics-brush.md
@@ -0,0 +1,5 @@
+---
+'livekit-server-sdk': patch
+---
+
+Add ringingTimeout option to transferSipParticipant
diff --git a/packages/livekit-server-sdk/src/SipClient.ts b/packages/livekit-server-sdk/src/SipClient.ts
index d2e97bd2..8f04013d 100644
--- a/packages/livekit-server-sdk/src/SipClient.ts
+++ b/packages/livekit-server-sdk/src/SipClient.ts
@@ -210,6 +210,8 @@ export interface SipOutboundTrunkUpdateOptions {
 export interface TransferSipParticipantOptions {
   playDialtone?: boolean;
   headers?: { [key: string]: string };
+  /** Maximum time for the transfer destination to answer the call, in seconds. */
+  ringingTimeout?: number;
 }
 
 /**
@@ -789,6 +791,9 @@ export class SipClient extends ServiceBase {
       transferTo: transferTo,
       playDialtone: opts.playDialtone,
       headers: opts.headers,
+      ringingTimeout: opts.ringingTimeout
+        ? new Duration({ seconds: BigInt(opts.ringingTimeout) })
+        : undefined,
     }).toJson();
 
     await this.rpc.request(