Grandstream Networks HT813 Administration Manual page 36

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-digit length
Dial Plan
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. As an example {
*x+ } will allow to dial * followed by any length of numbers.
SUBSCRIBE Sends SUBSCRIBE periodically (depends on "Register Expiration" parameter) for message waiting indication.
for MWI Default is No.
Send
Sets "From", "Privacy" and "P_Asserted_Identity" headers in outgoing INVITE message to "anonymous",
Anonymou
blocking caller ID. Default is No.
s
Anonymou
s Call Rejects incoming calls with anonymous caller ID with "486 Busy here" message. Default is No.
Rejection
Selects Soft switch vendors' special requirements Example of vendors: Standard, Broadsoft, CBCOM, RNK,
Special
Huawei, China Mobile, ZTE IMS, PhonePower, TELKOM SA, Vonage, Metaswitch, CenturyLink, MTS. Default is
Feature
Standard.
Enable
Session Disable the session timer when this option is set to "No". By default, this option is enabled.
Timer
Enables SIP sessions to be periodically "refreshed" via a SIP request (UPDATE, or re-INVITE). When the
Session session interval expires, if there is no refresh via an UPDATE or re-INVITE message, the session will be
Expiration terminated. Session Expiration is the time (in seconds) at which the session is considered timed out if no
successful session refresh transaction occurs beforehand. Default is 180 seconds.
Min-SE Defines Minimum session expiration (in seconds). Default is 90 seconds.
Caller
Uses session timer when making outbound calls if remote party supports it.
Request
Default is No.
Timer
Callee
Uses session timer when receiving inbound calls with session timer request.
Request
Default is No.
Timer
Uses session timer even if the remote party does not support this feature. Selecting "No" will enable session
Force
timer only when the remote party supports it. Default is No.
Timer
To turn off Session Timer, select "No" for Caller and Callee Request Timer, and Force Timer.