I am not sure if this is the correct forum but I will post my question here because Zoho Contacts is a part of Zoho Mail.

With the usage of this site I synchronized my android Device with my mails-contacts-calendars.

The most of my contacts are like the following format 00306912112211.

In my mobile (after the synchronization) the most of my contacts are shown like +306942+11 

Why this happens and how can I fix it?