We have a client with Exchange 2013 in-house. This client has users with a large variety of mobile phones. When users compose an email or do a lookup in contacts they experience different results. Some do not get any results, some only get email addresses, some get all contact fields.
In researching this, it is apparent to me that this is not unexpected, different iOS or devices will get different results, eg:
HTCsupersonic: email addresses and name only
Samsung SM-G900V : no results
Verizon iPhone 5c : all contact fields
AT&T: iPhone 6 : only showing some user and some not (I am not exactly sure what this means, from user)
Is there a compatibility matrix showing what mobile devices and features are supported by Exchange 2013?
Is there a best practice or work around to provide at least name, email, and phone number fields in the GAL lookup for unsupported devices?