Lectrosonics DMTH4, Справочное руководство

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Digital Telephone Hybrid
Rio Rancho, NM
59
DMTH4 Telephone Interface Commands
Command Description
telaec Telephone acoustic echo canceller
telaeccr Telephone acoustic echo canceller
convergence rate
telautoans Telephone auto answer
telautodis Telephone autodisconnect
telconn Telephone line connection status
telcchmlv Telephone connection chime level
telconnchm Telephone connection chime
teldial Dial telephone number
teldialspd Telephone dialing speed
teldtmf Send single DTMF character
teldtmfmon DTMF Monitoring status
teldtmflv Telephone DTMF level
telerl Telephone acoustic echo canceller ERL
telerle Telephone acoustic echo canceller ERLE
telflash Flash telephone hookswitch
telnbr Stored telephone number
telnbrti Stored telephone number title
telpriv Telephone line privacy
telprivmod Telephone line privacy mode
telredial Redial last number
telrchmlv Telephone ring chime level
telringchm Telephone ring chime
telringing Telephone ringing status
Note: All commands are terminated with an
ASCII carriage return character (hex code 0x0D),
represented by <CR> in the examples. All
responses are terminated with an ASCII carriage
return, line feed pair (hex codes 0x0D, 0x0A),
represented by <CRLF> in the examples. An
ellipsis (...) represents members of an array that
have been omitted from an example for the sake of
brevity.
telaec (telephone acoustic echo canceller)
This command may be used as a query to determine
the status of the telephone acoustic echo canceller. It
may also be used as an update to enable or disable the
acoustic echo canceller. The data type is integer, either
“1” meaning enabled, or “0” meaning disabled.
Examples:
Request Response
Query
telaec?<CR> OK 0<CRLF>
Update
telaec=1<CR> OK<CRLF>
telaeccr (telephone acoustic
echo canceller convergence rate)
This command may be used as a query to read the echo
canceller convergence rate. The data type is integer, in
the range 10 to 100, representing percentage of maxi-
mum aviailable rate.
Examples:
Request Response
Query
telaeccr?<CR> OK 40<CRLF>
Update
telaeccr=60 CR> OK<CRLF>
telautoans (telephone auto answer)
This command may be used as a query to determine the
status of the telephone auto answer feature. It may also
be used as an update to enable or disable auto answer.
The data type is integer, either “1” meaning enabled, or
“0” meaning disabled.
Examples:
Request Response
Query
telautoans?<CR> OK 0<CRLF>
Update
telautoans=1<CR> OK<CRLF>
telautodis (telephone auto disconnect)
This command may be used as a query to determine
the status of the telephone auto disconnect feature. It
may also be used as an update to enable or disable auto
disconnect. The data type is integer, either “1” meaning
enabled, or “0” meaning disabled.
Examples:
Request Response
Query
telautodis?<CR> OK 0<CRLF>
Update
telautodis=1<CR> OK<CRLF>
telcchmlv (telephone connection chime level)
This command may be used as a query to read the tele-
phone connection chime level, or as an update to set the
level. The data type is integer, in the range -12 to +12,
representing dB relative to the normal audio level.
Examples:
Request Response
Query
telcchlmv?<CR> OK -3<CRLF>
Update
telcchlmv=0<CR> OK<CRLF>
telconn (telephone line connection status)
This command may be used as a query to determine the
connection status of the telephone line interface. It may
also be used as an update to make or break a connec-
tion to the telephone line. The data type is integer, either
“1” meaning that the telephone interface is connected to
the line, or “0” meaning that it is not.
Examples:
Request Response
Query
telconn?<CR> OK 0<CRLF>
Update
telconn=1<CR>> OK<CRLF>