diff --git a/internal/rpc/rtc/signal.go b/internal/rpc/rtc/signal.go
index b20e02d36..393f1f2bc 100644
--- a/internal/rpc/rtc/signal.go
+++ b/internal/rpc/rtc/signal.go
@@ -108,6 +108,19 @@ func (s *rtcServer) handleInvite(ctx context.Context, req *rtc.SignalInviteReq,
 		}
 	}
 
+	// 从主叫用户资料获取铃声 URL，注入到邀请信息中，被叫方收到后播放主叫方铃声
+	if inviterInfo, err := s.userClient.GetUserInfo(ctx, req.UserID); err == nil && inviterInfo.CallRingtoneURL != "" {
+		inv.CallerRingtoneURL = inviterInfo.CallRingtoneURL
+	}
+
+	// 查询被叫方铃声 URL，供主叫方在等待时播放
+	var calleeRingtoneURL string
+	if len(inv.InviteeUserIDList) > 0 {
+		if inviteeInfo, err := s.userClient.GetUserInfo(ctx, inv.InviteeUserIDList[0]); err == nil {
+			calleeRingtoneURL = inviteeInfo.CallRingtoneURL
+		}
+	}
+
 	if _, err := s.roomClient.CreateRoom(ctx, &livekit.CreateRoomRequest{Name: inv.RoomID}); err != nil {
 		log.ZError(ctx, "handleInvite", err, "r", err.Error())
 		return nil, errs.WrapMsg(err, "LiveKit CreateRoom failed", "roomID", inv.RoomID)
@@ -147,9 +160,10 @@ func (s *rtcServer) handleInvite(ctx context.Context, req *rtc.SignalInviteReq,
 
 	log.ZDebug(ctx, "handleInvite", "token", token, "roomID", inv.RoomID, "liveURL", s.config.RpcConfig.LiveKit.ExternalAddress)
 	return &rtc.SignalInviteResp{
-		Token:   token,
-		RoomID:  inv.RoomID,
-		LiveURL: s.config.RpcConfig.LiveKit.ExternalAddress,
+		Token:             token,
+		RoomID:            inv.RoomID,
+		LiveURL:           s.config.RpcConfig.LiveKit.ExternalAddress,
+		CalleeRingtoneURL: calleeRingtoneURL,
 	}, nil
 }
 
@@ -164,6 +178,19 @@ func (s *rtcServer) handleInviteInGroup(ctx context.Context, req *rtc.SignalInvi
 	inv.InviterUserID = req.UserID
 	inv.InitiateTime = time.Now().UnixMilli()
 
+	// 从主叫用户资料获取铃声 URL，注入到邀请信息中，被叫方收到后播放主叫方铃声
+	if inviterInfo, err := s.userClient.GetUserInfo(ctx, req.UserID); err == nil && inviterInfo.CallRingtoneURL != "" {
+		inv.CallerRingtoneURL = inviterInfo.CallRingtoneURL
+	}
+
+	// 查询第一位被叫的铃声 URL，供主叫方在等待时播放
+	var calleeRingtoneURL string
+	if len(inv.InviteeUserIDList) > 0 {
+		if inviteeInfo, err := s.userClient.GetUserInfo(ctx, inv.InviteeUserIDList[0]); err == nil {
+			calleeRingtoneURL = inviteeInfo.CallRingtoneURL
+		}
+	}
+
 	if _, err := s.roomClient.CreateRoom(ctx, &livekit.CreateRoomRequest{Name: inv.RoomID}); err != nil {
 		return nil, errs.WrapMsg(err, "LiveKit CreateRoom failed", "roomID", inv.RoomID)
 	}
@@ -206,9 +233,10 @@ func (s *rtcServer) handleInviteInGroup(ctx context.Context, req *rtc.SignalInvi
 	}
 
 	return &rtc.SignalInviteInGroupResp{
-		Token:   token,
-		RoomID:  inv.RoomID,
-		LiveURL: s.config.RpcConfig.LiveKit.ExternalAddress,
+		Token:             token,
+		RoomID:            inv.RoomID,
+		LiveURL:           s.config.RpcConfig.LiveKit.ExternalAddress,
+		CalleeRingtoneURL: calleeRingtoneURL,
 	}, nil
 }
 
diff --git a/pkg/common/convert/user.go b/pkg/common/convert/user.go
index 8305f56c8..b49c7b7c5 100644
--- a/pkg/common/convert/user.go
+++ b/pkg/common/convert/user.go
@@ -49,6 +49,7 @@ func UserDB2Pb(user *relationtb.User) *sdkws.UserInfo {
 		PhoneVisibility:   user.PhoneVisibility,
 		CallAcceptSetting: user.CallAcceptSetting,
 		MsgReceiveSetting: user.MsgReceiveSetting,
+		CallRingtoneURL:   user.CallRingtoneURL,
 	}
 }
 
@@ -59,16 +60,17 @@ func UsersDB2Pb(users []*relationtb.User) []*sdkws.UserInfo {
 func UserPb2DB(user *sdkws.UserInfo) *relationtb.User {
 	fullName := BuildFullName(user.FirstName, user.LastName)
 	return &relationtb.User{
-		UserID:           user.UserID,
-		Nickname:         user.Nickname,
-		FaceURL:          user.FaceURL,
-		Ex:               user.Ex,
-		CreateTime:       time.UnixMilli(user.CreateTime),
-		AppMangerLevel:   user.AppMangerLevel,
+		UserID:          user.UserID,
+		Nickname:        user.Nickname,
+		FaceURL:         user.FaceURL,
+		Ex:              user.Ex,
+		CreateTime:      time.UnixMilli(user.CreateTime),
+		AppMangerLevel:  user.AppMangerLevel,
 		GlobalRecvMsgOpt: user.GlobalRecvMsgOpt,
-		FirstName:        user.FirstName,
-		LastName:         user.LastName,
-		FullName:         fullName,
+		FirstName:       user.FirstName,
+		LastName:        user.LastName,
+		FullName:        fullName,
+		CallRingtoneURL: user.CallRingtoneURL,
 	}
 }
 
@@ -85,6 +87,7 @@ func UserPb2DBMap(user *sdkws.UserInfo) map[string]any {
 		"last_name":           user.LastName,
 		"app_manager_level":   user.AppMangerLevel,
 		"global_recv_msg_opt": user.GlobalRecvMsgOpt,
+		"call_ringtone_url":   user.CallRingtoneURL,
 	}
 	for key, value := range fields {
 		if v, ok := value.(string); ok && v != "" {
@@ -147,5 +150,8 @@ func UserPb2DBMapEx(user *sdkws.UserInfoWithEx) map[string]any {
 	if user.MsgReceiveSetting != nil {
 		val["msg_receive_setting"] = user.MsgReceiveSetting.Value
 	}
+	if user.CallRingtoneURL != nil {
+		val["call_ringtone_url"] = user.CallRingtoneURL.Value
+	}
 	return val
 }
diff --git a/pkg/common/storage/model/user.go b/pkg/common/storage/model/user.go
index 8c2e18167..fa6786947 100644
--- a/pkg/common/storage/model/user.go
+++ b/pkg/common/storage/model/user.go
@@ -57,6 +57,8 @@ type User struct {
 	PhoneVisibility   int32     `bson:"phone_visibility"`
 	CallAcceptSetting int32     `bson:"call_accept_setting"`
 	MsgReceiveSetting int32     `bson:"msg_receive_setting"`
+	// CallRingtoneURL 用户自定义来电铃声 URL；对方来电时播放此铃声
+	CallRingtoneURL string `bson:"call_ringtone_url"`
 }
 
 func (u *User) GetNickname() string {
diff --git a/protocol b/protocol
index 0db6a7324..8bdb641d1 160000
--- a/protocol
+++ b/protocol
@@ -1 +1 @@
-Subproject commit 0db6a732426df40792921f861112e32785405e8d
+Subproject commit 8bdb641d1356efc61620c0d37647a86f5dc94973