Grandstream Networks GXV3240D Administration Manual page 47

Refer-To Use Target Contact
Auto Answer
Firmware Version 1.0.1.54
anydialed 7 digitnumbers

Example 3: {1xxx[2-9]xxxxxx | <2=011>x+}
Allow any number with leading digit 1 followed by a 3 digit number,
followed by any number between 2 and 9, followed by any 7 digit
number OR allow any length of numbers with leading digit 2, replacing
the 2 with 011 when dialed.
3. Default: Outgoing - { x+ | \+x+ | *x+ | *xx*x+ }
Allow any number of digits, OR any number with a leading +, OR any
number with a leading *, OR any number with a leading * followed by
a 2 digits number and a *. To dial + from keypad, press on 0 until +
appears on LCD.
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

<=1617>[2-9]xxxxxx - allow dialing to local area code (617)
numbers by dialing7 numbers and 1617 area code will be added
automatically

1[2-9]xx[2-9]xxxxxx |- allow dialing to any US/Canada Number
with 11 digitslength

011[2-9]x. - allow international calls starting with 011

[3469]11 - allow dialing special and emergency numbers 311,
411, 611 and 911
NOTE: In some cases where the user wishes to dial strings such as
*123 to activate voice mail or other applications provided by their
service provider, the * should be predefined inside the dial plan
feature. An example dial plan will be: { *x+ } which allows the user to
dial * followed by any length of numbers.
If set to "Yes", the "Refer-To" header uses the transferred target's
Contact header information for attended transfer. The default setting
is "No".
If set to "Yes", the phone will automatically turn on the speaker phone
to answer incoming calls after a short reminding beep. If set to
"Enable Intercom/Paging", it will answer the call based on the SIP info
header sent from the server/proxy. The default setting is "No".
GXV3240D Administration Guide Page 47 of 83