Marco Nielsen at myITforum.com

Differences between Verizon CDMA iPhone and AT&T GSM iPhone

For those of you supporting a corporate enterprise environment where you now are starting to have to support both types of devices, Apple did post a knowledge base article on that specifically highlights the differences in use between the devices that may be useful for you:
http://support.apple.com/kb/HT4515

It mostly impacts the following:
Call Fowarding
Call Waiting
Caller ID
Conference Call (how many you can call up, 5 on GSM, 2 on CDMA)
Pauses when dailing (the CDMA device doesn’t dial 1-800-MY-IPHONE or 555-1212x1234)
Hold (Doesn’t exist on CDMA)

Further details:
http://www.infoworld.com/d/mobilize/apple-spells-out-verizon-att-iphone-differences-863

Of course all of this may change once we know more about the iPhone 5 and Verizon’s LTE plans into 2012..

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Exchange ActiveSync (EAS) Policy Support on Mobile Devices

As the Microsoft Exchange platform has become the dominant e-mail solution of choice on the planet, it’s solution for remote e-mail access on mobile devices has also been the most widely used method. I will give some background, and then provide some links to information that may provide more in-depth information on the support given on various devices.

History

The EAS protocol, which has a server and a client component, was first licensed on the client side, and then later also in 3rd party server implementations.  In 2008 Microsoft announced it’s Interoperability Principles initiative and changed the licensing scheme to it’s EAS patents, and provided full documentation to the protocol to the public.

Today, the licensees include Apple, IBM, Google and probably most if not all the mobile device OEMs.  It is no secret that many believe that in part of the success of many of the other non-Microsoft mobile OS platforms has been their license of EAS and their successful implementations of it.

Versions

The important versions of EAS usually follow the Exchange Server releases and they are are currently:

More details can be found here. 

Compatibility Comparisons

Due to the incremental versions, protocol licensing and various implementations on different mobile devices, OS platforms and software clients it is very hard to get a complete view of what features are supported on a given device.  Even if the mobile device is running a specific OS platform, the OEM, and mobile operator (especially here in North America) can decide to make specific changes.

I have found several references that may help, but all will obviously become out of date as new platform versions, software and devices come out.

I take no responsibility for their accuracy or the content. All information should always be tested on the devices you have on hand.  I also apologize if the links become dead after a given amount of time, please ping me and I can update.

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