[asterisk-users] How asterisk use pri channel

[Olivier]

2011/6/9 Richard Mudgett <rmudgett at digium.com>

> > We have two pri line and I want to see how asterisk distribute
> > outgoing call per channels
> >
> > I meant it use first last channel 47 or it will use first channel?
> >
> > Or it will allocate dynamically ?
>
> Extracted from chan_dahdi.c:
>
> Dial(DAHDI/pseudo[/extension[/options]])
> Dial(DAHDI/<channel#>[c|r<cadance#>|d][/extension[/options]])
> Dial(DAHDI/<subdir>!<channel#>[c|r<cadance#>|d][/extension[/options]])
> Dial(DAHDI/i<span>[/extension[/options]])
>
> Dial(DAHDI/[i<span>-](g|G|r|R)<group#(0-63)>[c|r<cadance#>|d][/extension[/options]])
>
> i - ISDN span channel restriction.
>    Used by CC to ensure that the CC recall goes out the same span.
>    Also to make ISDN channel names dialable when the sequence number
>    is stripped off.  (Used by DTMF attended transfer feature.)
>
> g - channel group allocation search forward
> G - channel group allocation search backward
> r - channel group allocation round robin search forward
> R - channel group allocation round robin search backward
>
> c - Wait for DTMF digit to confirm answer
> r<cadance#> - Set distintive ring cadance number
> d - Force bearer capability for ISDN/SS7 call to digital.
>

Where this information can be read, for those of us that don't read C source
code ?
Is there "foo show bar" command for that ?

>
> All are valid for v1.8 and trunk.  The i<span> option and <subdir>! option
> are not valid earlier than v1.8.
>
> Richard
>
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