Cisco Unified Communications Manager Route Patterns: Call Routing Configuration and Selection

Cisco Unified Communications Manager Route Patterns Configuration

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Refer to the Cisco Unified Communications Manager configuration descriptions below.

When a call made from Phone A Line 1 to 30001, using Line1, which route pattern is chosen by the Cisco Unified Communications Manager? Phone A device calling search space is CSS_Dev_A.

Phone A Line 1 is assigned calling search space CSS_Line_A.

Route Pattern 30XXX is placed in Partition Part_1

Route Pattern 3XXXX is placed in Partition Part_2

Route Pattern 300XX is placed in Partition Part_3

CSS_Dev_A contains partition(s) Part_1

CSS_Line_A contains partition(s) Part_2.



Click on the arrows to vote for the correct answer

A. B. C. D.


When a call is made from Phone A Line 1 to 30001, Cisco Unified Communications Manager (CUCM) uses a dial plan to determine how to route the call. The dial plan is made up of various components, including route patterns, partitions, and calling search spaces.

In this scenario, Phone A Line 1 is assigned the calling search space CSS_Line_A, which contains partition Part_2. The route patterns 30XXX, 3XXXX, and 300XX are assigned to partitions Part_1, Part_2, and Part_3 respectively.

When Phone A Line 1 dials 30001 using Line 1, CUCM will search for a matching route pattern. It will start by looking for route patterns in the partition(s) assigned to the calling search space of the device, which in this case is CSS_Line_A containing Part_2.

Since there is no route pattern in Part_2 that matches the dialed digits (30001), CUCM will move on to search other partitions that are reachable by the CSS_Line_A. In this case, CSS_Line_A can access Part_1 through the partition(s) listed in the CSS_Dev_A.

Since the route pattern 30XXX is in Part_1 and matches the dialed digits, CUCM will choose this route pattern to route the call. Therefore, the correct answer is B. 30XXX in partition Part_1.

If none of the reachable partitions contain a matching route pattern, CUCM will not be able to route the call, and the user will receive a reorder tone. Therefore, answer C is also a possibility but not applicable to this scenario.

It is important to note that the dial plan search order is determined by the partition order specified in the calling search space. Route patterns in partitions that appear higher in the list have priority over those in lower partitions.