Section 4 – Dial Plan
QUESTION 1
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 supportvariable-length dial plans.
Answer: A
Explanation:
Ok, see Dial Plan Solutions, 1-18 and 1-62.
Variable-length numbering plans: Dial string length is determined by timeout. Overlap sending and receiving is enabled, allowing dialed digits to be signaled one by one instead of being sent as one whole number.
QUESTION 2
Refer to the exhibit.
Assume that NANP is being used and 9 is used for PSTN access code Long distance national calls are preceded with 1.
How should the HQ Cisco Unified Communications Manager be configured for calls to 3XXX to be sent to the gatekeeper at 10.1.6.1 with PSTN backups?
A. Configure a route pattern for 3XXX. Assign this route pattern to a route list that points to two route groups The first route group contains the H.225 trunk. The second route group contains the MGCP gateway with prefix digits 1 408555 for the outgoing called number.
B. Configure a route pattern for 1#3XXX. Assign this route pattern to a route list that points to a route group that lists the H.225 trunk as first choice and the MGCP gateway as a second choice.
C. Configure a route pattern for 4085543XXX. Assign this route pattern to a route list that points to two route groups. The first route group contains the H.226 trunk. The second route group contains MGCP gateway.
D. Configure a route pattern for 3XXX. Assign this route pattern to a route list that points to two route groups The first route group contains the H.225 trunk. The second route group contains MGCP gateway with prefix digits 91 408554 for the called number.
Answer: A
Explanation:
Ok, check 3-100 3-101.
Note:
For a PSTN backup, you need to perform digit manipulation in such a way that the calling number and (more importantly) the called number are transformed to always suit the needs of the device that is actually used. This transformation can be done at the route list, where digit manipulation can be configured per route group. In the example, the called number 9 1 511 555-1234 has to be changed to a 10-digit number for the H.225 trunk, because the
gatekeeper is configured with area code prefixes without the long distance 1. The called number must also be changed to an 11-digit number if rerouting the call to the PSTN gateway is necessary. A better solution would be using global transformations at the egress devices (H.225 trunk and PSTN gateways). In a large multisite environment or in an international deployment, the implementation of globalized call routing would be the best solution.
QUESTION 4
When an incoming PSTN call arrives at an MGCP gateway, how does the calling number get normalized to a global E.164 number with the + prefix in Cisco Unified Communications Manager?
A. Normalization is done using translation patterns.
B. Normalization is done using route patterns.
C. Normalization is done using the gateway incoming called party prefixes based on number type.
D. Normalization is done using the gateway incoming calling party prefixes based on number type.
E. Normalization is achieved by local route group that is assigned to the MGCP gateway.
Answer: D
Explanation:
Ok see 1-136 CIPT2 v8.0
QUESTION 5
Refer to the exhibit.
Which pattern will be advertised try the Cisco Unified Communications Manager?
A. 3XXX and the ToDID will be 0:
B. 3XXX and the ToDID will be 0:44228822
C. 3XXX and the ToDID will be 44228822
D. 3XXX and the ToDID will be 0:+44228822
E. 3XXX and the ToDID will be 0:+
Answer: A
Explanation:
Ok, 5-41 and 5-42.
