Well I didn't know about the two versions of ActiveSync/Exchange protocols - always nice to learn something new.
I can't find a way to send a PM so this is a little off topic, but I want to ask MK1151 if he finds "push / as items arrive" to work as well as expected as mine is a little slow and intermitted at times?
Steve
I tried to explain it as best I could - it's not really that there are two completely different protocols, but many clients have either a hidden or manually selected "compatibility mode" to connect to Exchange 2003 servers.
If you look here on page 10:
http://www.nitrodesk.com/tddownloads/tdstartup.pdf
You'll see that there is specific support for ActiveSync OR Exchange 2003/2007 and the text below says ActiveSync is always better. When I ran Exchange 2003, I had to use Exchange 2003 even though ActiveSync was enabled. When we upgraded our server to
Exchange 2007, the ActiveSync option worked.
I think it's all in how the server is configured as well as the service packs and updates.
To answer your question, I've not noticed any appreciable lag - when I get notifications on my Windows Phone, I also get them on my Android and Surface. Sometimes it is a few seconds behind but I wouldn't describe it as intermittent.