asterisk users - May 2006 - Dial Command Reference for SIP channel

Hi all.  I was reading a sample config someone had posted relating to
call forwarding, and in it, they use a Dial command with components that
I cannot find any reference to.
 
Can someone point me to a reference which could explain the difference
between Dial(SIP/100|20|Ttr,,wW) and Dial(SIP/100,,wW) 
Specifically, what is the |20|Ttr ?  I cannot seem to find any reference
which would indicate this is even a valid format for the SIP channel.
 
David Morrow
Technical Systems Lead
Autodata Solutions Company
David.Morrow@Autodata.net
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Tel: (519) 963-3020
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On Fri, 12 May 2006, Dave Morrow <david.morrow@autodata.net>
wrote
>Hi all.? I was reading a sample config someone had posted relating to
>call forwarding, and in it, they use a Dial command with components
>that I cannot find any reference to.
>?
>Can someone point me to a reference which could explain the difference
>between Dial(SIP/100|20|Ttr,,wW) and Dial(SIP/100,,wW)
>Specifically, what is the |20|Ttr ?? I cannot seem to find any
>reference which would indicate this is even a valid format for the SIP
>channel.
Well to my inexpert eye it looks wrong. Are you sure about the those 
stray commas in the first example?

Arguments can be separated by either a comma (,) or a pipe (|). So in 
your first you are dialling the SIP/100 with a 20 seconds timeout. 
What's left I think should be TtrwW, not Ttr,,wW. These are the 
'options' and are as listed at
http://www.voip-info.org/wiki-Asterisk+cmd+Dial. So if you loose those 
rogue commas, the answer to your "what's the difference" question
is a
specific time out value, the ability for both parties to perform 
transfers and a ringing tone.
-- 
Chris Hastie

Dave Morrow wrote:
> Hi all.  I was reading a sample config someone had posted relating to 
> call forwarding, and in it, they use a Dial command with components 
> that I cannot find any reference to.
>  
> Can someone point me to a reference which could explain the difference 
> between Dial(SIP/100|20|Ttr,,wW) and Dial(SIP/100,,wW)
> Specifically, what is the |20|Ttr ?  I cannot seem to find any 
> reference which would indicate this is even a valid format for the SIP 
> channel.
>  
http://www.voip-info.org/wiki/index.php?page=Asterisk+cmd+Dial

Doug

-- 
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Doug Lytle wrote:
> Dave Morrow wrote:
>> Hi all.  I was reading a sample config someone had posted relating to 
>> call forwarding, and in it, they use a Dial command with components 
>> that I cannot find any reference to.
>>  
>> Can someone point me to a reference which could explain the difference 
>> between Dial(SIP/100|20|Ttr,,wW) and Dial(SIP/100,,wW)
>> Specifically, what is the |20|Ttr ?  I cannot seem to find any 
>> reference which would indicate this is even a valid format for the SIP 
>> channel.
>>  
> http://www.voip-info.org/wiki/index.php?page=Asterisk+cmd+Dial
Or "show application dial" in the Asterisk CLI.

Dial(SIP/100|20|Ttr,,wW) is NOT a valid Dial command.  In Asterisk a
"|"
is the same as a ",".  In fact "," is translated into a
"|" internally,
as you can see by watching the CLI.




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