[asterisk-dev] DAHDI frame type

[Kelvin Chua]

In relation to this, I have already created a patch that makes this work,
however with the way dialtone
detection works in chan_dahdi.c, a channel is already in the answer state
when it realizes that there is
no dialtone in the line. what is the best strategy to make dahdi try the
other channels in its group after
failing?

Kelvin Chua


On Wed, Sep 14, 2011 at 10:49 AM, Kelvin Chua <kelchy at gmail.com> wrote:

> I've stumbled into a problem, I have enabled waitfordialtone=1000 to wait
> 1second for a dialtone before dialling a call. This is analog FXSKS
> signalling (fxo port)
>
> I have verified that during the 1 second period, chan_dahdi receives
> frametype = 5 (AST_FRAME_NULL) so when it enters this part, it does nothing
> and does not get into the routine.
>
>    } else if (p->waitingfordt.tv_sec) {
>                                 if (ast_tvdiff_ms(ast_tvnow(),
> p->waitingfordt) >= p->waitfordialtone ) {
>                                         p->waitingfordt.tv_sec = 0;
>                                         ast_log(LOG_WARNING, "Never saw
> dialtone on channel %d\n", p->channel);
>                                         f=NULL;
>                                 } else if (f->frametype == AST_FRAME_VOICE)
> {
>                                         f->frametype = AST_FRAME_NULL;
>                                         f->subclass.integer = 0;
>                                         if ((ast_dsp_get_tstate(p->dsp) ==
> DSP_TONE_STATE_D
>
> Any idea on why this is happening? I might have missed a config similar to
> PRI's early media or something.
>
> Kelvin Chua
>
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