<br><br><div class="gmail_quote">2009/7/7 Jared Smith <span dir="ltr"><<a href="mailto:jsmith@digium.com">jsmith@digium.com</a>></span><br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<div class="im">On Tue, 2009-07-07 at 15:42 +0200, Klaus Darilion wrote:<br>
> I am searching for the description of the available dialstrin options<br>
> for the DAHDI channel (and also other channel types).<br>
><br>
> I am not looking for outdated voip-info links, but for the authoritative<br>
> source, e.g. something like "core show application Dial"<br>
><br>
> Does such thing exists?<br>
<br>
</div>I don't think that such a thing exists. The only ones I'm aware of are:<br>
<br>
1) Channel Groups.<br>
<br>
DAHDI/g1/5551212 dials 5551212 on the first available channel in group<br>
one, searching from lowest to highest<br>
<br>
DAHDI/G1/5551212 dials 5551212 on the first available channel in group<br>
one, searching from highest to lowest<br>
<br>
DAHDI/r1/5551212 dials 5551212 on the first available channel in group<br>
one, going in round-robin fashion (and remembering where it last left<br>
off), searching from lowest to highest<br>
<br>
DAHDI/R1/5551212 dials 5551212 on the first available channel in group<br>
one, searching in round-robin fashion from highest to lowest.<br>
<br>
2) Distinctive ring<br>
<br>
DAHDI/4r1 dials channel 4 (presumably an FXS channel), and uses<br>
distinctive ring style one. If I recall, there are four different<br>
distinctive ring styles... so you could replace r1 with r2, r3, or r4.<br>
<br>
3) Answer confirmation<br>
<br>
DAHDI/1c/5551212 tells Asterisk to dial 5551212 on DAHDI channel 1, and<br>
not consider the call answered until the called party presses #. This<br>
is useful because of the way analog signaling works. Without this<br>
setting, Asterisk considers any outbound analog call on an FXO port<br>
answered just as soon as it has been dialed.<br>
<br>
4) Digital calls<br>
<br>
DAHDI/1d/5551212 tells Asterisk to dial 5551212 on DAHDI channel 1, and<br>
that it's a digital call. If I remember correctly, this is used for<br>
ISDN calls to set the bearer capability.<br>
<br>
I've taken a quick look in channels/chan_dahdi.c in TRUNK, and it seems<br>
to match up with my understanding, as I didn't see any other options<br>
stand out. While poking around in there, I found the following comment:<br>
<br>
/*<br>
* data is ---v<br>
* Dial(DAHDI/pseudo[/extension])<br>
* Dial(DAHDI/<channel#>[c|r<cadance#>|d][/extension])<br>
* Dial(DAHDI/(g|G|r|R)<group#(0-63)>[c|r<cadance#>|d][/extension])<br>
*<br>
* g - channel group allocation search forward<br>
* G - channel group allocation search backward<br>
* r - channel group allocation round robin search forward<br>
* R - channel group allocation round robin search backward<br>
*<br>
* c - Wait for DTMF digit to confirm answer<br>
* r<cadance#> - Set distintive ring cadance number<br>
* d - Force bearer capability for ISDN/SS7 call to digital.<br>
*/<br>
<br>
That's probably as definitive an answer as you're going to get.</blockquote><div><br>What is this was commented such as it could be added to a "core show application Dial" ? <br></div><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">
<br>
<font color="#888888"><br>
<br>
--<br>
Jared Smith<br>
Training Manager<br>
Digium, Inc.<br>
</font><div><div></div><div class="h5"><br>
<br>
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