Global address list fields on mobile devices Exchange 2013

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)

Two questions:
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?

Thanks,

Den
froshcoachAsked:
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Simon Butler (Sembee)ConsultantCommented:
This is the closest you will get to a matrix on what is supported by the various clients.
https://en.wikipedia.org/wiki/Comparison_of_Exchange_ActiveSync_clients

It is maintained by Microsoft, so should be pretty accurate, but I have seen changes vary between variants of the same device.

The only way you will get consistency across devices is by going third party for clients. The will probably mean Microsoft's Outlook for Android or Outlook for iOS apps - if you are prepared to put up with the security and management limitations of them.

Simon.

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froshcoachAuthor Commented:
Sembee,

Thanks for the response.

So my assertion is correct, different devices/iOS will return different results, third party client app required on unsupported devices at least. It's my first foray into this aspect of email on mobile devices and I have had difficulty finding definitive information.

I did find the Wiki article you referenced before posting the question but that matrix does not include Exchange 2013 on server 2012 r2 and did not provide the type of granular information I was looking for. Looks like it will be a matter of taking them as they come.

I am going wait to see if any other information is offered but I am familiar with your work and expect I will probably be accepting your solution tomorrow morning. Thanks again for the information.

Den
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