[asterisk-users] How does Asterisk use SIP info command

[Philipp Kempgen]

Olle E Johansson wrote:
> 22 feb 2007 kl. 23.40 skrev Philipp Kempgen:
> 
>> Olle E Johansson wrote:
>>> 22 feb 2007 kl. 19.34 skrev Philipp Kempgen:
>>>> I thought it might be useful to be able to ask Asterisk for the
>>>> current SIP CSeq through the Manager API in order to send your
>>>> own SIP messages during a call outside of Asterisk (for AOC,
>>>> whatever). Each time you ask for the CSeq Asterisk should increment
>>>> the value so it does not get out of sync.
>>>> Anyone sharing my opinion? We might open a feature request.
>>> We're trying to keep the Asterisk architecture multiprotocol and do
>>> things in a uniform way from the dialplan.
>>>
>>> Things like this would certainly break that, since it is very SIP-
>>> specific.
>>> Better to implement needed functionality in Asterisk.
>> Thanks for you reply. That's basically what you have said more
>> than once on the bug tracker. :)
> Thanks. Then I know that at least one person has read and understood :-)
> (Sorry, but sometimes it feels like being alone out there on the  
> tracker...)

:)

>> On the other hand people are waiting for quick solutions to
>> blinking Snom lights and AOC without really caring for the
>> whole picture.
>>
> We do have a lot of support for blinking lamps - for devices,
> conferences, parking lots and now in trunk for anything.

People refrain from using the trunk in a production environment.
And as I can remember even the trunk does not address the
Snom pickup problem. That's on of the things bristuff is popular
for.

> AOC is a very european thing and I keep shouting about it when
> I'm in Huntsville, so they're aware of the problem.

Great. :)
For a european company it's like this: We have AOC now, can we
have that with Asterisk? No. (Or at least not very easily, eg.
without a patch) But you probably know that.

> There are a few patches for AOC support in the bug tracker, please
> review them. I know SNOM has some proprietary extensions
> for AOC, but what's the state on other devices?

Snom has this page in their Wiki:
http://www.snom.com/wiki/index.php/Advice_of_charge_(AOC)_in_SIP
But they don't really say whether they actually use this in their
phones or if it's more like a working draft.

Apart from
http://tools.ietf.org/html/draft-garcia-sipping-etsi-ngn-p-headers-00#section-4.1
is there any other "standard" that I should be aware of?

Regards,
  Philipp

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