Chapter 6.2: Configuring Voice over DSL
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6.2.4 Ring cadence configuration support
Because the requirements for ring cadences differ per country, a list of ring
cadences can be configured.
Syntax:
cadence <id>,<make1>,<break1>,<make2>,<break2>,<make3>,<break3>
<id>
The index number of the ringing pattern. This must equal the
cadence number send by V5 in case of ELCP. See also 6.2.5 Define Cadences.
Each ringing pattern must have a unique id.
<makeX>
Time in milli seconds the phone is ringing.
<breakX>
Time in milli seconds the phone is silent.
-make 1-| |-make 2-| |-make 3-| |- make 1|
| | | | | | |
|-break 1-| |-break 2- | |-break 3- | |-
If the second or third period is not used, specify 0 as the make/break values for
the first unused period. Note that it is not possible to specify 0 for make2/break2
and a non zero value for make3/break3.
A ringing pattern with make2/break2 and make3/break3 equal 0 would look like
this:
-make 1-| |-make 1-| |-make 1-| |- make 1|
| | | | | | |
|-break 1-| |-break 1- | |-break 1- | |-
Example: to set the ring cadences add the following lines to the [file.initiad]
section:
cadence 0,2000,4000,0,0,0,0
cadence 1,800,400,800,4000,0,0
cadence 2,400,200,400,200,800,4000
cadence 3,300,200,1000,200,300,4000
cadence 4,500,5500,0,0,0,0
6.2.5 Define Cadences
Syntax:
defcadence <id>
Specify the id that is used as default ring cadence from the cadence table.
In case of CAS signalling: The default cadence id is used all the time. In case of
ELCP signalling: If the id, sent by the V5 network, is not found in the cadence
table, the default id is used. Note that if the default cadence id does not exist in
the table, id 0 is used.
6.2.6 Echo Cancellation
The IAD complies with G.168 which says:
The echo cancellers covered by this Recommendation should be equipped with a
tone detector that conforms to this sub clause. This tone detector should disable
