GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide

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  

j. Flag T when adding a “T” at the end of the dial plan, the phone will 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.  

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.  

1. Default: Outgoing – { x+ | +x+ | *x+ | *xx*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. An example dial plan will be: { *x+  

} which allows the user to dial * followed by any length of numbers.  

SUBSCRIBE for  

MWI  

Sends SUBSCRIBE periodically (depends on “Register Expiration” parameter) for message waiting indication.  

Default is No.  

This feature allows users to adjust the subscribe retry waiting time while it is rejected with 403 forbidden. Default is  

0. Valid range: 0-10080 in minutes.  

Subscribe Retry  

Wait Time upon  

403 Forbidden  

Note: Not supported on HT818  

Send  

Sets “From”, “Privacy” and “P_Asserted_Identity” headers in outgoing INVITE message to “anonymous”, blocking  

caller ID. Default is No.  

Anonymous  

Anonymous Call  

Rejection  

Rejects incoming calls with anonymous caller ID with “486 Busy here” message. Default is No.  

Selects Soft switch vendors’ special requirements Examples of vendors: BroadSoft, CBCOM, RNK, Huawei, China  

Mobile, ZTE IMS, PhonePower, TELKOM SA, Vonage, Metaswitch, CenturyLink, MTS, Oi_BR, Telefonica,  

GIBTELECOM. The default is Standard.  

Special Feature  

Enable Session  

Timer  

Disable the session timer when this option is set to “No”. By default, this option is enabled.  

Enables SIP sessions to be periodically “refreshed” via a SIP request (UPDATE, or re-INVITE). When the session  

interval expires, if there is no refresh via an 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. Valid range is 90-64800 seconds. Default is 180 seconds.  

Session  

Expiration  

Min-SE  

Defines Minimum session expiration (in seconds). Default is 90 seconds.  

Caller Request  

Timer  

Uses session timer when making outbound calls if remote party supports it. Valid range is 90-64800 seconds. Default  

is No.  

Uses session timer when receiving inbound calls with session timer request.  

Default is No.  

Callee Request  

Timer  

Uses session timer even if the remote party does not support this feature. Selecting “No” will enable session timer  

only when the remote party supports it. To turn off Session Timer, select “No” for Caller and Callee Request Timer,  

and Force Timer. Default is No.  

Force Timer  

Specifies which end will act as refresher for outgoing calls.  

Default is Omit.  

UAC Specify  

Refresher  

UAC: The HandyTone acts as the refresher.  

UAS: Callee or proxy server act as the refresher.  

Specifies which end will act as refresher for incoming calls. Default is Omit.:  

UAS: The HandyTone acts as the refresher.  

UAS Specify  

Refresher  

UAC: Callee or proxy server act as the refresher.  

Force INVITE  

Uses INVITE message to refresh the session timer. Default is No.  

When To Restart  

Session After Re-  

INVITE received  

Allows users to delay posting Media Change Event, it can be set to “Immediately” or to “After replying 200OK”  

The default value is “Immediately”.  

Appends “100rel” attribute to the value of the required header of the initial signaling messages.  

Default is No.  

Enable 100rel  

Add Auth  

Adds “Authentication” header with blank “nonce” attribute in the initial SIP REGISTER request.  

Default is No.  

Header on Initial  

REGISTER  

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General	Details
Name	GRANDSTREAM HT812 Analog FXS IP Gateway 2 Port + NAT Router User Guide
Make	GRANDSTREAM
Language	English
Filetype	PDF (Download)
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