[asterisk-users] off-hook warning tone

[Eric "ManxPower" Wieling]

The correct term for this tone is "howler".  I'm surprised it is not in 
indications.conf

Robert Lister wrote:
> On Tue, Sep 04, 2007 at 07:41:53AM -0500, Anthony Messina wrote:
> 
>> well i'm looking for the feature that the telco provides where, if you've left 
>> the phone off-hook for 60 seconds or so without input, it gives you the 
>> loud "put the damn phone back on the hook" noise.
>>
>> it works if i set absolute timeout to 60 and use the congestion tone, but i 
>> was hoping to use the actual off-hook warning tone.
>>
>> it seems as if the tone itself is not generated properly within asterisk.
> 
> Curious as I have not had problems with generating the tones.
> 
> It's worth checking that in sip.conf the language= option is set to the same 
> section you are editing in indications.conf
> 
> In the dialplan, what I think should happen is that when you do:
> 
> Congestion()
> 
> You send a congestion message back to the phone using SIP (rather than 
> in-band audio) so the handset is probably generating the Congestion tone, 
> not asterisk as it is not yet in the media path.
> 
> If you did it inband audio:-
> 
> Answer()
> Playtones(congestion)
> 
> This would play the tone from indications.conf - have an experiment with 
> this by setting up a little extension and dialling it.
> 
> As far as I can tell, AbsoluteTimeout() is just a global timeout for the 
> duration of a call, so if you set it to AbsoluteTimeout(30) then the call 
> (any call) will be hung up after 30 seconds.
> 
> http://www.voip-info.org/wiki/index.php?page=Asterisk+cmd+AbsoluteTimeout
> 
> Some handsets allow you to customise the tones played - depends on the 
> handset. And some handsets have a hotline feature to dial a given extension 
> after no digits have been dial for N seconds. (So you could get the handset 
> to dial a special extension which then answers the channel and plays the 
> noise you want!)
> 
> I could be wrong of course. Never wanted to do this as our phones just seem 
> to go back on-hook regardless after some dial timeout has elapsed.