Lumia 920 Windows 8 connecting to Exchange 2003

All of our users have iPhone to connect to email but the CEO wanted to try a Windows 8 phone.  I configured it for him but the email sync just doesn't seem to be as smooth as it was on the iPhone.  It does connect but there seems to be a delay and the overall process of getting email on the Lumia just isn't quite as seamless as the iPhones.

He will tell me that he knows that he has emails in his mailbox (via Outlook) but when he looks on his phone, he won't see anything.  If he does a manual sync, it will pull the emails down but it is set to "download new content as items arrive."  I assume it's similar to the iPhones where if a new email comes in, it will send a notification to the device saying that there is an email to download.  Sometimes, the delay is fairly significant (15-20) minutes.  Are there any activesync settings that I'm missing?  I would hope that when an email hits his mailbox, the Microsoft phone would also display that same email within seconds (at least that's how it works with the iPhone).  

Thanks in advance!
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

AmitIT ArchitectCommented:
It is issue with phone not with Active sync. Call MS or Nokia and register this issue.

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Smartphone Programming

From novice to tech pro — start learning today.