This must be in the form of a SPRE code or dialing pattern containing wildcards. Available wildcards for this index are: N=2-9, M=1-8, X=0-9, [abc]=Any digit contained in the bracketed list. Ending the pattern with '&' will cause the unit to also look for a valid dial-plan pattern following the SPRE code. The following rules must be observed: 1. Template must begin with a '*' or '#'. '*' and '#' are also allowed elsewhere in the template. 2. Templates MUST have at least one NUMBER. 3. '(' ')' and '-' are allowed, but not inside braces '[]'. 4. Do not use ',' '-' or ' ' inside braces '[]'. The list is implied. 5. Wildcards (MNX) are not allowed inside braces '[]'. 6. '&' is allowed but MUST be the last character. Cannot be standalone. 7. Setting it to 'none' will disable the functionality associated with the spre code. 8. Default spre code is *39 for this feature.