This table defines a dialing plan for POTS to SIP originations. A dialing plan consists of a series of acceptable dial strings and the corresponding IP addresses to which SIP control messages (e.g., Invite) are sent to initiate the call. Each dial string is represented as digits, wildcards, and regular-expression-like patterns as the following rules show: 1. A leading '*' or '#' are allowed. 2. Digits 0-9 are allowed. 3. A wildcard 'x' represents any digit 0-9 4. A digit range can be specified using brackets [ ], as follows: [135] means a single digit with acceptable values 1,3, or 5. [1-4] means a single digit with acceptable values 1,2,3, or 4. Examples of valid dial strings: 911 - literal digit string 911 #87 - literal digit string #87 *6x - *6 followed by any single digit 35xxx - 35 followed by any 3 digits 77xxx - 77 followed by any 3 digits 3[35]xxx - 33 or 35 followed by any 3 digits 31[1-3]xxxx - 311, 312, 313, followed by any 4 digits Notes: (1) The length of the dial string is limited 1o 128 characters (2) Though the dialplan supports the '#' and '*' keys, the device may not support any features that use them (e.g., *69). (3) In the case where a collected digit set matches more than one dial string, the device will pick the dial string with the most leading literal digits that match. For example, given two dial strings: 35xxx 3[35]xxx and a collected digit set of 35123, the first dial plan string is selected because it contains two leading literal digits that match, as opposed to the second, which has only one leading literal digit. (4) Variable length dial strings, e.g. 353 followed by any number of digits, are not supported. (5) In the future, a dial string may be configurable such that it only applies to a subset of the supported ports (e.g., ports with international calling capabilities might be restricted). This is currently not supported; a dial string applies to all subscriberers. Support will be added for per-port control, most likely by adding port masks to the dial plan entry.