Configuring SMTP Connector DID/DTMF Lookup

You can configure DID (Direct Inward Dialing) or DTMF (Dual-tone Multi-frequency Signaling) lookup for the SMTP connector by using the Server Administrator > Connectors node.

DID is a telecommunication service provided by telephone companies to subscribers that manage a private branch exchange (PBX) system.

DTMF is a telecommunication signaling system that uses a voice-frequency band over telephone lines across telephone equipment, other communication devices including switching centers.

Reviewing the default DID Lookup configuration for inbound faxing

DID lookup identifies the recipient of an inbound fax. To retrieve the recipient email address, the server submits a lookup request using the last four digits of the DID string captured by the modem server. When the recipient email address is returned, the HP CR Connector for SMTP can deliver the message to the SMTP server.

Tip: The default HP CR Connector for SMTP configuration specifies the facsimileTelephoneNumber attribute for DID/DTMF lookup. (This is the Active Directory and LDAP attribute that stores the fax number of users.) Change the attribute, if necessary, and confirm that the lookup attribute is indexed. Indexing the lookup attribute optimizes lookup speed.

The DID/DTMF lookup configuration can be modified and tested in the HP CR Connector for SMTP properties.

Note: If faxing is not enabled for the HP CR Server, no modification is necessary.

To configure DID/DTMF lookup for the SMTP connector

1. Start the Server Administrator.
   On the Start menu, click HP Capture and Route > HP Capture and Route Server Administrator.

2. On the console, expand the Server Administrator tree and select Connectors. The Connectors details pane lists the connectors that are licensed with your server.

3. Double-click the SMTP connector to open the Properties dialog box.

4. Select the Enable DID/DTMF Lookup via this connector option, if necessary.

5. Click DID/DTMF Lookup.

6. Click Add. The LDAP Properties dialog box appears.

7. In the General section:

   • Type the name of the lookup server in the Server Address box.

   • Type the port number in the Port box. The port number can be 389 (LDAP), 636 (secure LDAP), or 3268 (Active Directory).

   • Type a brief description in the Description box.

8. In the Logon section:

   • Select User if you want to log on to the lookup server as a specific user (the default is Anonymous).

   • Type the name of the user and password in the Username and Password boxes.

   • If you select User, you must look at the Username field. If this field contains a user ID formatted using the Active Directory logon format (for example, username@server.forest.domain.com), lookups in this search base should be successful with no additional configuration. If this field contains a user ID in any other format (for example, domain\user), select Bind using Windows generic security services.  

9. Click Search.

10. In the General section of the Search dialog box:

    • In the Search Timeout box, enter the number of minutes the server should search before timing out.
      The timeout period you define on the lookup server should not be longer than the Search Timeout setting for the connector. You must also consider the scope of your search base when configuring the timeout setting. If the search base is broad, configure a longer timeout period since the lookup might take a relatively longer amount of time

    • In the Search Basetext box, enter the search base string Use LDAP format when you type the search base string. For example: ou=mysite,o=org.com

11. In the Search Filter section, define the search filter.

    • If you want to use a simple filter, do the following:

    • • Select Use simple filter.

      • Select Wildcard match ending on received DID/DTMF if you want the search filter to match all received DID or DTMF numbers, or select Match last [ ] digits of received DID/DTMF and type a number in the spin box if you want the search filter to match only the specified number of digits at the end of the DID or DTMF string.

      • Select Return people only if you want the query to return only users associated with this connector. (This option will exclude printers, computers, and other resources from the search results.)

      • Select an option in Attribute holding fax number. The option you select is the field in the database that the connector queries.

    • If you want to use a custom filter, do the following:

    • Select Use custom filter.

    • Click Properties.

    • Type the custom search filter in the Filter box. (Use the guidelines provided in the Custom LDAP Filter screen.)

    • Click OK.

12. In the Filter section, click Test. The Lookup Test dialog box appears.

13. Type a DID or DTMF number in the Enter the incoming DID/DTMF box and click Search. The query results appear below.

14. Click Close to go back to the LDAP Properties dialog box.

15. Click OK twice to close theSMTP propertiesdialog box.

Tip: HP CR recommends that you configure the lookup database to index the field containing DID numbers. This optimizes the speed of lookups.

See also

About SMTP Connector

Sending SMTP Connector Outbound Messages

Adding a SMTP Connector

SMTP Connector One-off Address Format

Configuring SMTP Connector Default Recipient Type and Outbound Rules