User's Manual

P a g e | 33
HT801 Administration Guide
proxy is configured and supporting 484 responses (Incomplete Address). Otherwise,
the call will likely be rejected by the proxy (with a 404 Not Found error). Default is No.
This feature is NOT designed to work with and should NOT be enabled for direct IP-to-
IP calling.
Dial Plan Prefix
Adds specified prefix to dialed number.
Use # as Dial Key
Treats “#” as the “Send” (or “Dial”) key. If set to “No”, this “#” key can be included as
part of the dialed number. Default is Yes.
Dial Plan
Dial Plan Rules:
1. Accept Digits: 1,2,3,4,5,6,7,8,9,0 , *, #, A,a,B,b,C,c,D,d
2. Grammar: x - any digit from 0-9;
a. xx+ - at least 2 digits number;
b. xx – exactly 2 digits number;
c. ^ - exclude;
d. . – wildcard, matches one or more characters
e. [3-5] - any digit of 3, 4, or 5;
f. [147] - any digit 1, 4, or 7;
g. <2=011> - replace digit 2 with 011 when dialing
h. < =1> - add a leading 1 to all numbers dialed, vice versa will remove a
1 from the number dialed
i. | - or
• Example 1: {[369]11 | 1617xxxxxxx} –
Allow 311, 611, 911, and any 10 digit numbers of leading digits 1617
• Example 2: {^1900x+ | <=1617>xxxxxxx} –
Block any number with leading digits 1900 and add prefix 1617 for any
dialed 7 digit numbers
• Example 3: {1xxx[2-9]xxxxxx | <2=011>x+} –
Allow any length of number with leading digit 2 and 10 digit-numbers of
leading digit 1 and leading exchange number between 2 and 9; If leading
digit is 2, replace leading digit 2 with 011 before dialing.
3. Default: Outgoing - {x+}
Example of a simple dial plan used in a Home/Office in the US:
{ ^1900x. | <=1617>[2-9]xxxxxx | 1[2-9]xx[2-9]xxxxxx | 011[2-9]x. | [3469]11 }
Explanation of example rule (reading from left to right):
• ^1900x. - prevents dialing any number started with 1900