Which method can be used to address variable-length dial plans?
A.
Overlap sending and receiving.
B.
Add a prefix for all calls that are longer than 10-digits long
C.
Use nested translation patterns to eliminate inter-digit timeout
D.
Use the @macro on the route pattern
E.
Use MGCP gateways, which support variable-length dial plans
Explanation:
If the dial plan contains overlapping patterns, Cisco Unified Communications Manager does not route the call until the interdigit timer expires (even if it
is possible to dial a sequence of digits to choose a current match). Check this check box to interrupt interdigit timing when Cisco Unified Communications Manager
must route a call immediately.
By default, the Urgent Priority check box displays as checked. Unless your dial plan contains overlapping patterns or variable length patterns that contain!, Cisco
recommends that you do not uncheck the check box.
Link: http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/admin/8_6_1/ccmfeat/fsintrcm.html