Dial plan mapping samples

This topic provides sample Dial Plan Mapping to assist you in configuring dial plans for Message Networking remote machines.

Before administering Dial Plan Mapping for the remote machines on the Message Networking system, you must obtain the extension ranges, area code, and prefixes for the remote machines. You should also identify any extensions for which mailboxes do not exist (such as automated attendants) and any extensions within the ranges that are used by another remote machine using the same prefix on the Message Networking network.

Note: All of the samples assume an Message Networking network address length of 10.

Sample 1: Single unbroken range of mailbox IDs

In this sample, there is a single unbroken mailbox ID range, 2000 to 5999 that is added as an extension range for this remote machine. To create the 10-digit mailbox IDs required, you must:

• Enter a Map From Length of 0.
• Leave the Map From field for this range blank since you have one unbroken mailbox ID range.
• In the Map To digits, enter the area code and local exchange 3-digit prefix for the remote machine. In this sample, an area code used is 303, and the 3-digit prefix used is 555. Therefore, 303555 is entered in the Map To field.

The result of this sample mapping is that the Map To digits, 303555, are added to the beginning of the 4-digit mailbox ID to create 10-digit mailbox IDs ranging from 3035552000 to 3035555999.

Sample 2: Broken ranges of mailbox IDs with a Map From of 0

In this sample, the following broken mailbox ID ranges are each added as extension ranges for the Dial Plan Mapping:

• 2000 to 2999
• 3000 to 3999
• 5000 to 5499
• 5800 to 5999

The ranges 4000 to 4999 and 5500 to 5799 are omitted. Ranges should be omitted when:

• The range contains auto-attendant mailboxes or other extensions for which mailboxes have not been assigned.
• Another messaging system, which uses the same prefix as this system, uses the mailbox ranges 4000 to 4999 or 5500 to 5799.

The following table lists the mailbox ID ranges and the corresponding Map From and Map To digits.

In this sample, you only enter Map To digits for the first mailbox ID range. Message Networking automatically applies the Map To prefix to the remaining ranges.

The result of this sample mapping is that the Map To digits, 303555, are added to the beginning of the 4-digit mailbox ID to create 10-digit mailbox IDs ranging from 3035552000 to 3035555999. The Message Networking does not change the mailbox IDs not included in the extension ranges.

Note: If it is possible that this remote machine will add mailboxes at a later time, do not use a Map From Length of 0. Instead, use a Map From Length of 1, as is used in Sample 3. If you use a Map From Length of 0 and then must change the dial plan later to use a different Map From Length, you are required to remove the system from the Message Networking network and add it again.

Sample 3: Broken ranges of mailbox IDs with a Map From of 1

In this sample, the following broken mailbox ID ranges are each added as extension ranges for the Dial Plan Mapping:

• 2000 to 2999
• 3000 to 3999
• 5000 to 5499
• 5800 to 5999

As in the previous sample, some extensions are omitted. Because you anticipate that you will be required to change the dial plan for this system in the future, use a Map From Length of 1.

The following table lists the mailbox ID ranges and the corresponding Map From and Map To digits.

Leave the Map From and Map To fields for the final mailbox ID range blank. Message Networking applies the Map From entry of 5 and the Map To digits 3035555 to any range that begins with a 5.

The result of this sample mapping is that the first number of each mailbox ID range is replaced by the Map To digits for that range. For example, for the first extension range (2000 to 2999), the first digit (2) is removed, and the Map To digits (3035552) are added to the beginning of the mailbox IDs to create a range of IDs from 3035552000 to 3035552999.

Sample 4: Ranges that require different prefixes

In this sample, the following broken mailbox ID ranges are each added as extension ranges for the Dial Plan Mapping:

• 2000 to 2999
• 3000 to 3999
• 5000 to 5999

One of the mailbox ID ranges (5000 to 5999) requires a different Map To prefix. Therefore, a Map From Length of 1 or greater is required. Because the range begins with a unique Start digit (5), you can enter a 1 for the Map From Length.

The following table lists the mailbox ID ranges and the corresponding Map From and Map To digits.

The result of this sample mapping is that the first number of each mailbox ID range is replaced by the Map To digits for that range. For example, for the first extension range (2000 to 2999), the first digit (2) is removed and the Map To digits (3035552) are added to the beginning of the mailbox IDs to create a range of IDs from 3035552000 to 3035552999. For the third extension range (5000 to 5999), the first digit (5) is removed and the Map To digits (7205515) are added to the beginning of the mailbox IDs to create a range of IDs from 7205515000 to 7205515999.

Sample 5: Ranges with different prefixes and shared Start digits

In this sample, the system has two mailbox ID ranges with the same initial digit (5), but their DID prefixes are different and must be differentiated in the dial plan. Also, because entries in the Map From field must be unique, you must use two Map From digits.

The mailbox ID ranges for this sample are as follows:

• 2000 to 2999
• 3000 to 3999
• 5000 to 5499
• 5500 to 5999

Because of the requirement to use 2 as the Map From Length, you must enter a separate mailbox ID range for each set of extensions that have the same two Start numbers. For example, you must break down the 2000 to 2999 mailbox ID range into separate ranges based on the first two numbers in the ID (2000 to 2099, 2100 to 2199, and so on).

The following table lists the mailbox ID ranges and the corresponding Map From and Map To digits.

The result of this sample mapping is that the first number of each mailbox ID range is replaced by the Map To digits for that range. For example, for the first extension range (2000 to 2099), the first two digits (20) are removed, and the Map To digits (30355520) are added to the beginning of the mailbox IDs to create a range of IDs from 3035552000 to 3035552999. For the fourth extension range (5500 to 5599), the first two digits (55) are removed, and the Map To digits (72055155) are added to the beginning of the ranges mailbox IDs to create a range of IDs from 7205515000 to 7205515999.

Sample 6: Prefixes replaces initial mailbox digits

In this sample, there are broken Mailbox ID ranges, and the two ranges have different Map To prefixes. Additionally, the mailbox IDs are part of a 5-digit Uniform Dial Plan across two switches so that the initial digits of the mailbox IDs overlap the final digits of the telephone number prefixes. In this case, the dial plan map will replace the initial digits of the mailbox ID ranges with a different digit. This sample requires a Map From Length of 1.

The mailbox ID ranges for this sample are as follows:

• 20000 to 29999
• 50000 to 59999

The following table lists the mailbox ID ranges and the corresponding Map From and Map To digits.

In this sample, the first digit in the mailbox ID is replaced by the local area code and prefix to create the 10-digit mailbox ID required on the Message Networking system. For example, a mailbox in the first range might be 21333, but its external phone number would be 303-555-1333. So the Dial Plan Mapping is configured to replace the first digit in the mailbox ID (2) with the local area code and prefix (303555).

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