适用于iPhone的Whatsapp图标链接

Question

我试图建立一个社交媒体侧栏，它的确有效。问题是whatsapp链接适用于所有设备，但它不适用于iphone设备。请问有人帮帮我吗？

<ul class='social'>
      <li>
         <a class="fa fa-phone" href="tel://00905397448686"   target="_blank">    
         <span>Call</span>
         </a> 
     </li>
      <li>
         <a class="fa fa-whatsapp" href="intent://send/+905397448686#Intent;scheme=smsto;package=com.whatsapp;action=android.intent.action.SENDTO;end">    
         <span>Whatsapp</span>
         </a> 
     </li>
      <li>
         <a href="http://m.me/clinicexpert.net" target="_blank"> <img src="facebook-messenger.png">  
         <span>Messenger</span>
         </a> 
     </li>
     <li>
         <a class="fa fa-facebook" href="https://www.facebook.com/clinicexpert.net/?ref=hl" target="_blank">    
         <span>Facebook</span>
         </a> 
     </li>
     <li>
         <a class="fa fa-instagram" href="https://www.instagram.com/clinicexpert.turkey/"target="_blank">    
         <span>Instagram</span>
         </a> 
     </li>
     <li>
         <a class="fa fa-twitter" href="https://twitter.com/Clinicexpert_"target="_blank">    
         <span>Twitter</span>
         </a> 
     </li>
     <li>
         <a class="fa fa-youtube" href="https://www.youtube.com/user/ClinicExpert"target="_blank">    
         <span>YouTube</span>
         </a> 
     </li>
      <li>
         <a class="fa fa-envelope" href="mailto:save@clinicexpert.net" target="_blank">    
         <span>E-Mail</span>
         </a> 
     </li>
</ul>