diff --git a/i18n-tool.js b/i18n-tool.js
index a5e8847..f9625b6 100644
--- a/i18n-tool.js
+++ b/i18n-tool.js
@@ -1,23 +1,26 @@
 const landSet = require('./i18n-lands.js')
 
 module.exports = {
-  validate_phone ({ phone } = {}) {
+  validate_phone ({ phone, level = wo?.envar?.phoneStrict || wo?.ss?.envarRemote?.phoneStrict || 'LEN' } = {}) {
     try {
-      let [fullphone, itc, callnumber] = /^\+(\d{1,3})-(\d{7,12})$/.exec(phone)
-      switch (itc) {
-        case landSet.CN.itc:
-          return new RegExp(landSet.CN.phoneRegex).test(callnumber)
-        case landSet.JP.itc:
-          return new RegExp(landSet.JP.phoneRegex).test(callnumber)
-        case landSet.SG.itc:
-          return new RegExp(landSet.SG.phoneRegex).test(callnumber)
-        case landSet.US.itc:
-          return new RegExp(landSet.US.phoneRegex).test(callnumber)
-        default:
-          return true
+      let [fullphone, itc, callnumber] = /^\+(\d{1,4})-(\d{7,12})$/.exec(phone)
+      for (let land of Object.values(landSet)) {
+        if (land.itc === itc) {
+          if (land.phoneRegex) {
+            return new RegExp(land.phoneRegex).test(callnumber)
+          } else {
+            return callnumber.length > (land.phoneMinlen || 7) && callnumber.length < (land.phoneMaxlen || 12)
+          }
+        }
       }
+      return false
     } catch (error) {
       return false
     }
   },
+
+  validate_email ({ email, format } = {}) {
+    if (format) return new RegExp(format).test(email)
+    return /^.+@[^\.]+\..+$/.test(email)
+  },
 }