and pin; 5: use SHA1 authentication account and pin.
set dtmf X
Set DTMF relay type. X is ranged form 0 through 3: 0:control
string 
1:inband audio 
2: signal keypad 
3:rfc 2833.
set dtmf payload X
When dtmf X select 3(rfc 2833).This parameter can be used indicating type of RTP payload type. The value can be use integer
set dialplan X
Enable/disable dial plan and dial number. Parameter X ranged from 0 through 4: 0: disable dial plan; 1: enable dial plan; 2: use dial number; 3: use 179XX service; 4: use hotline function.
set dialnumber XX
When set dialplan value set as 2, please use this command to set
dial number. For example, with eTalk card used, please set it as
00.When set dialplan value set as 4, please use this command to set hotline number.
set dddcode XX
Set the area code when set dialplan value set as 1 or 2. For example, the area code of Beijing is 10; the area code of Shanghai is 21, and the area code of Chengdu is 28, etc. Parameter xxx must be an Arabic numeral and no longer than 3 characters.
set iddcode XXX
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