I participated in whatsapp translations and this came in my inbox few days ago:
Hi there,
Thank you for translating WhatsApp into Arabic. We have recently added some new strings that have yet to be translated from English into Arabic. Here is what we need help with:
INCOMING
View Chat
Voice Call
Toggle Speakerphone
WHATSAPP CALL
End Voice Call
Start Voice Call
Mute Call
Please do not reply to this email. Simply click on the links above to translate.
Thank you again for your effort to make WhatsApp a truly global phenomenon!
--WhatsApp team
If you would like to stop receiving these emails, please click here