Information Technology Reference
In-Depth Information
The bottom part shows the call with H.450.3 support enabled. When the call reaches Cali-
fornia, CME sends an H.450.3-based redirect message, instead of accepting the call and
forwarding it on to Florida. The VoIP traffic then travels directly from x1001 in Texas to
Florida rather than passing through California to get there.
Entering
call-forward pattern
<
pattern
> from telephony service configuration mode tells
CME which numbers should support the H.450.3 standard. Entering the pattern 15.. tells
CME, “I want all four-digit numbers that begin with 15 to support H.450.3.” Thus, all
calls to 15XX extensions would support H.450.3 call forwarding.
Note:
There is much more to be said about the H.450.3 standard. There is also more con-
figuration that should be in place to fully support H.450.3. This is intended to be a “sneak
peak” of the standard, which the CCNP Voice certification track fully explores.
If you prefer to use CCP to make forwarding modifications, you can find the settings un-
der the Advanced tab of the Extensions configuration window (
Unified Communication
> Users, Phones, and Extensions > Extensions
), as shown in Figure 7-9.
Figure 7-9
Configuring Call Forwarding Using CCP
