a

lib/contact-address.js

@@ -50,7 +50,7 @@ class ContactAddress {
     }
     static formatAddress(type, address) {
         if (type === 'phone' && ContactAddress.isValidPhoneNumber(address)) {
-            return ContactAddress.formatPhoneNumber(address);
+            return ContactAddress.formatPhoneNumber(ContactAddress.parsePhoneNumber(address) || address);
         }
         return address;
     }

src/contact-address.ts

@@ -55,7 +55,7 @@ export class ContactAddress {
 
   public static formatAddress(type: string, address: string) {
     if (type === 'phone' && ContactAddress.isValidPhoneNumber(address)) {
-      return ContactAddress.formatPhoneNumber(address);
+      return ContactAddress.formatPhoneNumber(ContactAddress.parsePhoneNumber(address) || address);
     }
     return address;
   }