Information Technology Reference
In-Depth Information
For incoming calls, the Time-of-Day rules are processed first. If the time-of-day rule al-
lows the call to be extended to the Remote Destination Profile, any configured Access
Lists are processed next. If the Access List allows the call, it is extended to the Remote
Destination device.
Key Point: Avoid using empty Access Lists. An empty Access List selected in a white list
causes no calls to be routed; an empty Access List in a black list causes all calls to be rout-
ed to the remote destination device.
Mobile Voice Access
Mobile Voice Access (MVA) provides the same single-number consistency and flexibility
for outbound calls from users: By accessing the CUCM system from their mobile device,
they can instruct the system to place calls and have the call appear to be from their IP
phone using their primary IP phone number (assumed to be a DID, but could be the main
business number). As a result, their physical location has no impact on their voice commu-
nication consistency. Whether they are sitting in front of their IP phone or using their mo-
bile phone from the golf course, the calls they place all appear to come from their primary
business number.
Key
To p i c
To use the feature, the user dials in to a specific PSTN DID to access the MVA service. A
specially configured VoiceXML gateway routes calls to an Interactive Voice Response
(IVR) application that guides the user through his MVA session. The IVR app provides se-
curity by prompting the user to authenticate with their User ID (optional) and PIN. Once
successfully authenticated, the IVR prompts the user for the number they want to dial.
The user enters the PSTN number and the system places the call, using the ANI of the
user's IP phone. The user can switch between his mobile device and his IP phone during
the call. The called party sees the Caller ID as that of the user's IP phone, providing the
single-number consistency and recognition, as well as ease of callback from a call list.
Figure 12-1 shows the basic call flow in MVA.
• Place call
from associated
IP phone.
PSTN
Destination
VXML
PSTN
• Match call 02
to remote device
profile.
• Call VXML
DID
• Authenticate
• Enter PSTN
Number
2001
Mobile
Phone
IP Phone
Figure 12-1
Mobile Voice Access Basic Call Flow
 
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