[asterisk-dev] Remote MWI notification issue

Josh Patten jpatten at ezuce.com
Fri May 11 09:29:58 CDT 2012


On Fri, May 11, 2012 at 7:49 AM, Mark Michelson <mmichelson at digium.com>wrote:

> On 05/10/2012 09:40 PM, Josh Patten wrote:
>> I recently posted on the Asterisk support forum about an issue I was
>> experiencing with Asterisk MWI:
>> http://forums.asterisk.org/**viewtopic.php?f=1&t=82685<http://forums.asterisk.org/viewtopic.php?f=1&t=82685><
>> http://forums.asterisk.org/**viewtopic.php?f=1&t=82685<http://forums.asterisk.org/viewtopic.php?f=1&t=82685>
>> >
>> And was directed to join the mailing list for help with assistance
>> resolving this issue.
>> I am unable to subscribe to external MWI. If possible, please review the
>> forum post and information contained therein and point out my errors. If
>> you need more info don't hesitate to ask.
>> Thank you.
>> --
>> Josh Patten
> The one thing that makes this a bit hard to diagnose is that you don't say
> here or in your forum post what version of Asterisk you are using.
> The problem appears to be that Asterisk doesn't even attempt to send
> authentication when the server challenges the SUBSCRIBE. I took a quick
> look at the 1.4 SVN tip and the 1.8 SVN tip. In 1.8, Asterisk should be
> sending authentication in response to 401 responses to SUBSCRIBEs. In 1.4,
> it should not be. So if you're using 1.8, I'd say you've found a bug that
> needs fixing, so you should open an issue on the bug tracker. If you're
> using a version prior to 1.8 (i.e. an unsupported version), then you'll
> need to modify the code yourself in order to do what you want. If you
> search chan_sip.c for "do_proxy_auth" it should be clear how to do what you
> need.
> I'm not 100% sure about this, but I think Asterisk still does not support
> receiving unsolicited MWI NOTIFYs at this point, so you'll still see the
> 481 problem if you attempt to use Asterisk 1.8.
> Mark!
> --
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Josh Patten
Solutions Architect
O.978-296-1005 X2050
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