Grandstream Networks GRP2615 Administration Manual page 43

Early Dial
Dial Plan Prefix
Dial Plan
Selects whether to enable early dial. If it's set to "Yes", the SIP proxy must
support 484 responses. Early Dial means that the phone sends for each
pressed digit a SIP INVITE message to SIP server. SIP server considers its
extensions and, if no match happened yet, it sends back a "484 Address
Incomplete" message. Otherwise, it executes the action.
The default setting is "No".
Configures the prefix to be added to each dialed number.
A dial plan establishes the expected number and pattern of digits for a
telephone number. This parameter configures the allowed dial plan for the
phone. Default setting is "{ x+ | \+x+ | *x+ | *xx*x+ }". Dial Plan Rules:
1. Accepted 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
X – digits from 0-9, and letters from a-z, A-Z.
a) xx+ - at least 2-digit numbers
b) xx — only 2-digit numbers
c) ^ — exclude
d) [3-5] — any digit of 3, 4, or 5
e) [147] — any digit of 1, 4, or 7
f) <2=011> - replace digit 2 with 011 when dialing
g) | — the OR operand
h) , - second dial tone. For example: {0,x+} will play second dial tone
after dialing 0 and all digits will be sent including 0
{X123} — match Z123, e123, 5123, ...
i)
Flag T when adding a "T" at the end of the dial plan, the phone will
j)
wait for 3 seconds before dialing out. This gives users more flexibility
on their dial plan setup. E.g. with dial plan 1XXT, phone will wait for
3 seconds to let user dial more than just 3 digits if needed. Originally
the phone will dial out immediately after dialing the third digit.
k) Back slash "\" — can be used to escape specific letters. E.g. if
{ \p\a\r\k\+60 } dial plan is configured, park+60 should be able to
pass dial plan check. This also can be used to escape Mark and
User-unreserved characters.
Mark = "-" / "_" / "." / "!" / "~" / "*" / "'" / "(" / ")"
User-unreserved = "&" / "=" / "+" / "$" / "," / ";" / "?" / "/"
•
Example 1: {[369]11 | 1617xxxxxxx}
Allow 311, 611, and 911 or any 10 digit numbers with leading digits 1617;
•
Example 2: {^1900x+ | <=1617>xxxxxxx}
Block any number of leading digits 1900 or add prefix 1617 for any dialed 7
digit numbers;
GRP2615 Administration Guide
Version 1.0.0.31
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