From c76f5dcca7128d7d120f450b082c315135f11427 Mon Sep 17 00:00:00 2001
From: shikong <919411476@qq.com>
Date: Sat, 25 Jan 2025 17:06:55 +0800
Subject: [PATCH] =?UTF-8?q?=E5=AE=9E=E7=8E=B0=20keepalive?=
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---
 pkg/services/device/keepalive.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/pkg/services/device/keepalive.go b/pkg/services/device/keepalive.go
index e2406f1..8c64fe5 100644
--- a/pkg/services/device/keepalive.go
+++ b/pkg/services/device/keepalive.go
@@ -34,5 +34,8 @@ func StartKeepAlive(client *sipgo.Client) {
 
 // StopKeepAlive 停止 keepalive 定时器
 func StopKeepAlive() {
+	if keepaliveTimer == nil {
+		return
+	}
 	keepaliveTimer.Stop()
 }