3300 ICP General Information Guide
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Voice Profile for Internet Mail
Voice Profile for Internet Mail (VPIM) allows voice mail users to send and receive messages
between all the voice mail servers on a network that are VPIM2 compliant, whether they are
Mitel systems or third party products.
VPIM is supported between embedded messaging, NuPoint Messenger, Messaging Server,
and is compatible with Hot Desking.
Networked voice mail supports distributed embedded voice mail servers, where each node has
its own embedded voice mail server.
Hot Desking
Hot Desking creates a more flexible work environment by providing users with the ability to
share a pool of IP phones. Users can log onto any screen-based Mitel IP phone in a cluster of
3300 ICPs, irrespective of location. A user who is in New York one day and Chicago the next
can get a personal profile mapped onto the phone, as long as the phone is still part of the 3300
cluster. Hot Desking includes password protection.
Each hot desk user is assigned a mobile directory number (DN) that is programmed with the
user’s profile. Attributes like phone number (prime DN), call restrictions, call forwarding,
message waiting indication, and programmed features/buttons are all part of a user’s profile.
Hot desk phones are standard IP phones that are programmed as hot desk phones using a
specific class of service option. A user can log in or out of a hot desk phone using a mobile DN
only. When a mobile DN logs in to a hot desk phone, the hot desk phone takes on all the
attributes of the mobile DN.
Resiliency
If you are a hot desk user and the building experiences a LAN failure or other that prevents
primary call control services to your phone from the local 3300 ICP, you can now be registered
on a second controller anywhere in the cluster. As a hot desk user, you have automatic failover
capability and can remain in communication.
Hot desk users programmed on clustered networks can log on to any hot desk set in the cluster.
On log in, the set is redirected to the user's host ICP. If the set and user are not programmed
for resiliency, then on failure ongoing IP calls survive but feature access is unavailable and the
hot desk user is logged out.
Note: VPIM on embedded voice mail does not support G.721 compression; it
supports only G.721 without compression. The other sites in the VPIM must also
support G.721.
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