User's Manual
FIRMWARE VERSION 1.0.0.5     HT802 USER MANUAL              Page 35 of 46 
1900 and add prefix 1617 for any dialed 7 digit numbers 
•      Example  3:  {1xxx[2-9]xxxxxx |  <2=011>x+} –Allow any combinations of numbers 
with 11 digits which has a leading digit 1, but 5th digit cannot be 0 or 1. Or any length 
of  numbers  with  a  minimum  of  2  digits  beginning  with  2,  with  the  leading  digit 
replaced with 011. 
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 
• <=1617>[2-9]xxxxxx - allows dialing to local area code (617) numbers by dialing 
7 numbers and 1617 area code will be added automatically 
• 1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11 digits 
length 
• 011[2-9]x. - allows international calls starting with 011 
• [3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 911 
Note: In some cases user wishes to dial strings such as *123 to activate voice mail or 
other application provided by service provider. In this case * should be predefined 
inside dial plan feature and the Dial Plan should be: { *x+ }.  
Subscribe for MWI 
Default is No. When set to ―Yes‖ a SUBSCRIBE for Message Waiting Indication will be 
sent periodically. 
Send Anonymous 
Default is No. If this  parameter is  set to ―Yes‖, the ―From‖ header along with Privacy 
and  P_  Asserted_Identity  headers  in  outgoing  INVITE  message  will  be  set  to 
anonymous, blocking Caller ID. 
Anonymous Call 
Rejection 
Default is No. If set to Yes, incoming calls with anonymous Caller ID will be rejected 
with 486 Busy message. 
Special Feature 
Default is Standard.  Choose the selection to meet some special requirements from 
Softswitch vendors. 
Session Expiration 
Grandstream implemented  SIP  Session  Timer.  The  session timer  extension enables 
SIP sessions to be periodically ―refreshed‖ via a SIP request (UPDATE, or re-INVITE. 
Once the session interval expires, if there  is no refresh via a UPDATE or re-INVITE 
message, the session will be terminated. Session Expiration is the time (in seconds) at 
which the session is considered timed out, if no successful session refresh transaction 
occurs beforehand. The default value is 180 seconds. 
Min-SE 
The minimum session expiration (in seconds). The default value is 90 seconds.  
Caller Request Timer 
Default  is  No.  If  selecting  ―Yes‖  the  phone  will  use  session  timer  when  it  makes 
outbound calls if remote party supports session timer. 










