diff --git a/src/views/neUser/voip/index.vue b/src/views/neUser/voip/index.vue
index 86dbb5f8..90805eea 100644
--- a/src/views/neUser/voip/index.vue
+++ b/src/views/neUser/voip/index.vue
@@ -1026,8 +1026,8 @@ onMounted(() => {
                 allow-clear
                 style="width: 100%"
                 :min="1"
-                :max="10000"
-                :maxlength="16"
+                :maxlength="17"
+                placeholder="length <= 17"
               >
               </a-input-number>
             </a-form-item>