[asterisk-users] how to determine if a SIP extension has DNDonoroff

[Anthony Francis]

Eric "ManxPower" Wieling wrote:
> SIP response 486 is "Busy Here" according to RFC 3326.  Polycoms at 
> least (and I think Cisco phones) do not send back a different message 
> depending on if DND is enabled .vs. the line appearance simply being busy.
>
> Personally I can't see how the people that designed SIP could justify 
> not being able to get the DND status or CFWD status of a SIP device.
>
>
> Steve Langstaff wrote:
>   
>> The OP was asking whether they could update Asterisk's DND status for
>> the extension to mirror a DND button on the (SIP) phone. I suggested
>> that they might act on the response code to an OPTIONS.
>>
>> I think that they *actually* want to do some queue management based on
>> the DND button of the (SIP) phone.
>>
>>     
>>> -----Original Message-----
>>> From: asterisk-users-bounces at lists.digium.com 
>>> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
>>> Joshua Colp
>>> Sent: 14 September 2007 08:43
>>> To: Asterisk Users Mailing List - Non-Commercial Discussion
>>> Subject: Re: [asterisk-users] how to determine if a SIP 
>>> extension has DNDonoroff
>>>
>>>       
>>>> --- Steve Langstaff <steve.langstaff at citel.com> wrote:
>>>>
>>>>         
>>>>> I don't know about the 1.4 source, but in 1.2 I guess you 
>>>>>           
>>> would have 
>>>       
>>>>> to add some more code to
>>>>>
>>>>> handle_response_peerpoke()
>>>>>
>>>>> to handle the case where you got a 486 response from the peer.
>>>>>           
>>>> ok thanks, so that just seems to confirm that Asterisk
>>>> 1.2 DND's behavior can't be modified/customized without 
>>>>         
>>> patching the 
>>>       
>>>> source code. I might forward this issue to asterisk-devel.
>>>>
>>>>         
>>> What do you mean modified/customized exactly?
>>>
>>> If you mean can you know whether a device has DND enabled or 
>>> not before sending a call then no, even an OPTIONS packet 
>>> won't tell you that. You send a call, they reject (and 
>>> sometimes they even use a response code that doesn't indicate 
>>> it's DND). Same goes for call forwarding. You send a call, 
>>> they reject saying "go here instead".
>>>       
When a device is called and it is in CFWD mode it sends back a redirect 
message (Moved Temporarily), Asterisk displays in the CLI " Recieved 
"Moved Temporarily" trying XXXXXX thanks to XXX.XXX.XXX.XXX" or 
something along those lines.

This helps you know what is in SIP messages:
http://www.ietf.org/rfc/rfc3263.txt

-- 
Thank you and have a wonderful day,

Anthony Francis
Rockynet VOIP
(303) 444-7052 opt 2
voip at rockynet.com