Akuhn
Normal operation for DEE is that the primary desk phone is set for active along with any devices that you want to utilize during a DEE step; meaning this device will ring when the DEE feature is turned on and activated through a step. Turning on DEE can either be a button on the phone (default 364), through the configuration assistant, the user's web interface, or database programming. The active status is what the UCA Mobile application changes to enable or disable a device in a step, which makes it look as though it is turning off and on DEE when actually DEE is always on. It is recommended by Mitel that the user is not given a DEE Feature button so they can not turn the feature off thus deactivating anything the UCA Mobile application is doing.
MWI/Pullback is a pretty simple concept, but I will start with MWI first. MWI is obviously whether or not you want the Message Waiting indicator for a device to be lit; in the case of desk1 or desk2 devices. If this is set for a mobile device, ie cell phone, then there are some additional settings that need to be set up in the phone system for this to function properly as it actually sends an email or sms message to the phone to alert the user that they received a message in their mailbox. You only need to turn this function on if you want it to receive a message waiting indication for the primary devices mailbox (default desk1) and it is capable of accepting the message waiting indication. Also, as a reminder only Mobile-1 is allowed to receive these messages so there is no need to set MWI/Pullback for Mobile-2.
The Pullback function is also called Handoff under Feature codes, (Default 388), and is used to light the Handoff button on desk phones or IP phones that can be programmed for the Handoff feature. If you do not set this to yes then that device is not capable of pulling a call back from your mobile device. Normally you would want this set to yes for any devices that will have a handoff button programmed on it.
Hopefully I cleared up any confusion you may have had on those features and what you would normally want them set for. By default all Desk Destinations are set yes for Active and MWI/Pullback and Mobile Destinations are set yes for Active and no for MWI/PUllback.
Thanks,
TE