[Pidgin] #12617: Patch to add out-of-band DTMF support

[Pidgin]

#12617: Patch to add out-of-band DTMF support
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 Reporter:  BigBrownChunx           |       Owner:  darkrain42
     Type:  patch                   |      Status:  new
Milestone:  Patches Needing Review  |   Component:  libpurple
  Version:  2.7.3                   |  Resolution:
 Keywords:  dtmf media              |
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Comment (by dwmw2):

 I've attached a new Jabber patch which at least *builds* against the
 current trunk. I am unable to test it, and the original had so many errors
 I'm not convinced it was ever even *build*, let alone tested.

 I note at least that it doesn't check for the feature having been
 advertised in a Service Discovery, in accordance with §3 ("Determining
 Support") of [http://xmpp.org/extensions/xep-0181.html XEP-0181], and
 doesn't check for any of the responses described in Examples 2-5 in §2.

 I do not recommend applying this patch as-is, but I've updated it for
 posterity now that the base support has gone into trunk.

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Ticket URL: <https://developer.pidgin.im/ticket/12617#comment:23>
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