Справочник Пользователя для Grandstream ht-503

 

Grandstream Networks, Inc. 

Page 26 of 37  

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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. 

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): 

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^1900x. - prevents dialing any number started with 1900 

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<=1617>[2-9]xxxxxx  - allows dialing to local area code (617) numbers by dialing 

7 numbers and 1617 area code will be added automatically 

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1[2-9]xx[2-9]xxxxxx |- allows dialing to any US/Canada Number with 11 digits 

length 

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011[2-9]x. - allows international calls starting with 011 

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[3469]11 - allow dialing special and emergency numbers 311, 411, 611 and 911 

Default is No.  When set to “Yes” a SUBSCRIBE for Message Waiting Indication will be 
sent periodically. 

When set to “Yes”, the “From” header along with Privacy and P_Asserted_Identity 
headers in outgoing INVITE messages will be set to anonymous, blocking Caller ID. 

Default is No.  If set to “Yes”, incoming calls with anonymous Caller ID will be rejected 
with a 486 busy message. 

Default is Standard. Choose the selection to meet some special requirements from 
Softswitch vendors. 

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.

 

The minimum session expiration (in seconds).  The default value is 90 seconds.  

If selecting “Yes” the phone will use session timer when it makes outbound calls if 
remote party supports session timer. 

If selecting “Yes” the phone will use session timer when it receives inbound calls with 
session timer request.  

If selecting “Yes” the phone will use session timer even if the remote party does not 
support this feature. Selecting “No” will allow the phone to enable session timer only 
when the remote party support this feature.  
To turn off Session Timer, select “No” for Caller Request Timer, Callee Request Timer, 
and Force Timer.

 

As a Caller, select UAC to use the phone as the refresher, or UAS to use the Callee or 
proxy server as the refresher.  

As a Callee, select UAC to use caller or proxy server as the refresher, or UAS to use 
the phone as the refresher. 

Session Timer can be refreshed using INVITE method or UPDATE method. Select 
“Yes” to use INVITE method to refresh the session timer.  

The HT503 supports 5 different Vocoder types including 

1.  G.711 A/µ law,  (Displayed as PCMA/PCMU) 
2. G.723.1, 

 

3.  G.726 (Supports bit rates 16, 24, 32, and 40)  
4. G.729A/B/E, 

 

5. iLBC 

Users can configure Vocoders in a preference list that will be included with the same 
preference order in SDP message.