Enhanced Local Dialing

The 9600 Series IP Telephones have a variety of telephony-related applications that might obtain a telephone number during operation. For example, the Call Log saves a number of an incoming caller, but does not consider that the user has to then prepend the saved number with a digit to dial an outside line, and possibly a digit to dial long distance.

Avaya Communication Manager (CM) 4.0 gives the call server the potential to provide a superior level of enhanced "calltype digit analysis." With CM 4.0 the call server has access to the entire dialing plan through its log dialing digit analysis feature. When log digit dialing analysis is supported, the telephone does not attempt to enhance a number as described in this section, and the call server assumes responsibility for analysis and action.

9600 Series IP Telephones can evaluate a raw telephone number, based on administered parameters. The telephone can automatically prepend the correct digits, saving the user time and effort. This is the Enhanced Local Dialing feature. The key to the success of this feature is accurate administration of several important values, summarized below.

The system values relevant to the Enhanced Dialing Feature are:

• ENHDIALSTAT - Enhanced dialing status. If set to “1” the enhanced local dialing feature is turned on. If set to “0” enhanced local dialing is off.
• PHNCC - the international country code of the media server.
  For example, “1” for the United States, “44” for the United Kingdom, and so on.
• PHNDPLENGTH - the length of the dial plan on the media server.
• PHNIC - the digits the media server dials to access public network international trunks.
  For example, “011” for the United States.
• PHNLD - the digit dialed to access public network long distance trunks on the media server.
• PHNLDLENGTH - the maximum length, in digits, of the national telephone number for the country in which the Avaya Media Server is located.
• PHNOL - the character(s) dialed to access public network local trunks on the media server.

NOTE: In all cases, the values you administer are the values relevant to the location of the Avaya Media Server at which the IP telephones are registered. If a telephone is in Japan, but its media server is in the United States, set the PHNCC value to “1" for the United States.

In all cases, the digits the telephones insert and dial are subject to standard Avaya Media Server features and administration. This includes Class of Service (COS), Class of Restriction (COR), Automatic Route Selection (ARS), and so on.

As indicated in Table 9, you can administer the system parameter ENHDIALSTAT to turn off the Enhanced Local Dialing feature.

Example: A corporate voice network has a 4-digit dialing plan. The corporate WML Web site lists a 4-digit telephone number as a link on the Human Resources page. A 9620 user selects that link. The 9620 deduces the telephone number is part of the corporate network because the length of the telephone number is the same as the corporate dialing plan. The telephone dials the number without further processing.

Example: A user notes a Web site contains an international telephone number that needs to be called and initiates the call. The telephone determines the number to be called is from another country code. The telephone then prepends the rest of the telephone number with PHNOL to get an outside line and PHNIC to get an international trunk. The telephone then dials normally, with the Avaya Media Server routing the call appropriately.