12.1.3.2. User Interface 
ACD calls can be routed to PhoneMail via a Route-to-Group ART step.
The Agents in the ACD PhoneMail group are associated with a specific
trunk port in an ACD PhoneMail trunk group. Routing and queuing to an
ACD PhoneMail group is the same as for normal ACD groups. The only difference
is that specific Agent selection is performed based on the ACD PhoneMail
trunk selection algorithm rather than the ACD group's Agent selection
algorithm.
The PhoneMail service access number used to route calls to the PhoneMail
Agent group is configured with the ACD group. This number must first
be defined in AMO RICHT. Upon successful completion of a route to a
PhoneMail Agent, the calling party display will be updated to show the
DNI number followed by the NAME configured in RICHT associated with the
PhoneMail group's service access number.
IMPORTANT:
If the PhoneMail service access number assigned
to the Agent group is invalid, all attempts to route ACD calls to this
PhoneMail Agent group will cause an error to be logged. Such failures
cause ART processing to abandon further attempts to reach the PhoneMail
Agent group for this call (i.e. no queuing to the group).