[Pidgin] #17234: audio failing to start Xubuntu & Debian Jessie XMPP accounts

[Pidgin]

#17234: audio failing to start Xubuntu & Debian Jessie XMPP accounts
--------------------+--------------------------
 Reporter:  galen   |      Owner:  EionRobb
     Type:  defect  |     Status:  new
Milestone:  2.12.1  |  Component:  unclassified
  Version:  2.12.0  |   Keywords:  audio, voice
--------------------+--------------------------
 audio chat works within the LAN works but not outside, no traversing.
 within the LAN clients 2.10.12 connect to each other and to 2.12.0 clients

 The recipient gets the notice and clicks accept, waits for some time and
 nothing. There audio bar moves but nothing from caller.

 The caller client reports these errors in the debug window.

 (21:47:50) GLib: Source ID 80669 was not found when attempting to remove
 it
 (21:48:03) g_log: gst_ffmpeg_cfg_set_property: assertion 'qdata->size ==
 sizeof (gint64)' failed
 (21:48:57) g_log: gupnp_simple_igd_remove_port_local: assertion
 'local_port != 0' failed
 (21:48:57) g_log: gupnp_simple_igd_remove_port_local: assertion
 'local_port != 0' failed
 (21:48:57) g_log: gupnp_simple_igd_remove_port_local: assertion
 'local_port != 0' failed
 (21:48:57) g_log: gupnp_simple_igd_remove_port_local: assertion
 'local_port != 0' failed
 (21:50:05) GLib: Source ID 84880 was not found when attempting to remove
 it
 (21:55:49) plugins: /usr/lib/purple-2/liboscar.so is not usable because
 the 'purple_init_plugin' symbol could not be found.  Does the plugin call
 the PURPLE_INIT_PLUGIN() macro?
 (21:55:49) plugins: /usr/lib/purple-2/libjabber.so is not usable because
 the 'purple_init_plugin' symbol could not be found.  Does the plugin call
 the PURPLE_INIT_PLUGIN() macro?
 (21:55:49) plugins: /usr/lib/purple-2/libymsg.so is not usable because the
 'purple_init_plugin' symbol could not be found.  Does the plugin call the
 PURPLE_INIT_PLUGIN() macro?
 (21:55:50) GLib: Source ID 89720 was not found when attempting to remove
 it
 (21:55:56) GLib: Source ID 89725 was not found when attempting to remove
 it
 (21:57:32) GLib: Source ID 89918 was not found when attempting to remove
 it
 (21:57:39) GLib: Source ID 90079 was not found when attempting to remove
 it
 Both

 I've experienced this error with accounts on jabber.org & jabber.at if
 that is any help.

 Pidgin Network preferences [x] auto detect IP address.
 Port enable router forwarding.
 Router has UPnP turned off.

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Ticket URL: <https://developer.pidgin.im/ticket/17234>
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