.
Thread 1 (process 19609):
#0  IA__g_logv (log_domain=0x7f4b585a8737 "GLib-GObject", 
    log_level=G_LOG_LEVEL_CRITICAL, 
    format=0x7f4b585a9cc0 "Flags for property '%s' on class '%s' are not compatible with the property oninterface '%s'\n", args1=0x7fff6202cce0)
    at /build/buildd/glib2.0-2.15.4/glib/gmessages.c:503
	buffer = "\000\000\000\000\000\000\000\000HÍ\002bÿ\177\000\000\000\000\000\000\001\000\000\000\v\000\000\000\000\000\000\000ðÈ\002bÿ\177\000\000àÈ\002bÿ\177\000\000 )+XK\177\000\000ø)+XK\177\000\000ø)+XK\177\000\000\000\000\000\000\000\000\000\000 Ê\002bÿ\177\000\000z·\221Y\004\000\000\000\004\000\000\000\000\000\000u\f\000\000\000\020\000\000\000lÐc\000\000\000\000\000\000\226c\000\000\000\000\000\020\002\000\000\000\000\000\000\000*+X\f\000\000\000à\000\000\000\000\000\000\000\220É\002bÿ\177\000\000\200É\002bÿ\177\000\000²\230üWK\177\000\000±", '\0' <repeats 11 times>, "\f\000\000\000À\000\000\000\000\000\000\000À"...
	depth = 1
	domain = <value optimized out>
	data = (gpointer) 0x0
	log_func = (GLogFunc) 0x7f4b582f7d50 <IA__g_log_default_handler>
	domain_fatal_mask = 5
	test_level = G_LOG_FLAG_FATAL
	was_recursion = 0
	i = <value optimized out>
#1  0x00007f4b582f7213 in IA__g_log (log_domain=0x7f4b582b29a0 "", 
    log_level=6580432, format=0x7f4b582b2a00 "0Ád")
    at /build/buildd/glib2.0-2.15.4/glib/gmessages.c:517
	args = {{gp_offset = 48, fp_offset = 48, 
    overflow_arg_area = 0x7fff6202cdc0, reg_save_area = 0x7fff6202cd00}}
#2  0x00007f4b58585c23 in object_interface_check_properties (
    func_data=<value optimized out>, g_iface=<value optimized out>)
    at /build/buildd/glib2.0-2.15.4/gobject/gobject.c:771
	class_pspec = (GParamSpec *) 0x638f40
	iface_type = 6577520
	pspecs = (GParamSpec **) 0x6496c0
	n = <value optimized out>
#3  0x00007f4b5859df42 in type_iface_vtable_iface_init_Wm (
    iface=<value optimized out>, node=<value optimized out>)
    at /build/buildd/glib2.0-2.15.4/gobject/gtype.c:1722
	check_func = (
    GTypeInterfaceCheckFunc) 0x7f4b58585af0 <object_interface_check_properties>
	check_data = (gpointer) 0x0
	entry = <value optimized out>
	iholder = <value optimized out>
	vtable = (GTypeInterface *) 0x649790
	i = 1
	__PRETTY_FUNCTION__ = "type_iface_vtable_iface_init_Wm"
#4  0x00007f4b585a216b in IA__g_type_class_ref (type=<value optimized out>)
    at /build/buildd/glib2.0-2.15.4/gobject/gtype.c:1900
	ptype = <value optimized out>
	pclass = <value optimized out>
	node = (TypeNode *) 0x642eb0
	_action = " invalidly modified type "
#5  0x00007f4b58587603 in IA__g_object_new_valist (object_type=6565552, 
    first_property_name=0x418eac "connection", var_args=0x7fff6202cfe0)
    at /build/buildd/glib2.0-2.15.4/gobject/gobject.c:988
	_value = <value optimized out>
	_value_type = <value optimized out>
	_vtable = <value optimized out>
	_collect_format = <value optimized out>
	_cvalues = {{v_int = 1491738784, v_long = 139961591013536, 
    v_int64 = 139961591013536, v_double = 6.9150213857071072e-310, 
    v_pointer = 0x7f4b58ea20a0}, {v_int = 6541696, v_long = 6541696, 
    v_int64 = 6541696, v_double = 3.2320272591370992e-317, 
    v_pointer = 0x63d180}, {v_int = 168, v_long = 168, v_int64 = 168, 
    v_double = 8.3003028501329419e-322, v_pointer = 0xa8}, {v_int = 6577520, 
    v_long = 6577520, v_int64 = 6577520, v_double = 3.249726666833716e-317, 
    v_pointer = 0x645d70}, {v_int = 6565552, v_long = 6565552, 
    v_int64 = 6565552, v_double = 3.2438136891842879e-317, 
    v_pointer = 0x642eb0}, {v_int = 1476203036, v_long = 139961575477788, 
    v_int64 = 139961575477788, v_double = 6.9150206181391703e-310, 
    v_pointer = 0x7f4b57fd121c}, {v_int = 0, v_long = 0, v_int64 = 0, 
    v_double = 0, v_pointer = 0x0}, {v_int = 6541768, v_long = 6541768, 
    v_int64 = 6541768, v_double = 3.2320628318635997e-317, 
    v_pointer = 0x63d1c8}}
	_n_values = <value optimized out>
	error = <value optimized out>
	pspec = <value optimized out>
	params = <value optimized out>
	name = (const gchar *) 0x418eac "connection"
	object = <value optimized out>
	n_params = <value optimized out>
	n_alloced_params = <value optimized out>
	__PRETTY_FUNCTION__ = "IA__g_object_new_valist"
#6  0x00007f4b585879e1 in IA__g_object_new (object_type=6565552, 
    first_property_name=0x418eac "connection")
    at /build/buildd/glib2.0-2.15.4/gobject/gobject.c:795
	var_args = {{gp_offset = 16, fp_offset = 48, 
    overflow_arg_area = 0x7fff6202d0d0, reg_save_area = 0x7fff6202d000}}
	__PRETTY_FUNCTION__ = "IA__g_object_new"
#7  0x000000000040b555 in sip_media_factory_new_channel (fac=0x62d4f0, 
    request=0x64bb80, handle_type=TP_HANDLE_TYPE_CONTACT, handle=2, 
    error=0x7fff6202d150) at media-factory.c:302
	priv = (SIPMediaFactoryPrivate *) 0x62d510
	chan = <value optimized out>
	conn = <value optimized out>
	object_path = (
    gchar *) 0x647d40 "/org/freedesktop/Telepathy/Connection/sofiasip/sip/zdra_40ekiga_2enet/MediaChannel0"
	nat_traversal = (const gchar *) 0x419aa8 "none"
	__PRETTY_FUNCTION__ = "sip_media_factory_new_channel"
#8  0x000000000040b7b7 in sip_media_factory_request (
    iface=<value optimized out>, 
    chan_type=0x647e60 "org.freedesktop.Telepathy.Channel.Type.StreamedMedia", 
    handle_type=TP_HANDLE_TYPE_CONTACT, handle=2, request=0x64bb80, 
    ret=0x7fff6202d1e0, error_ret=0x7fff6202d1e8) at media-factory.c:365
	status = TP_CHANNEL_FACTORY_REQUEST_STATUS_NOT_IMPLEMENTED
	error = (GError *) 0x0
	__PRETTY_FUNCTION__ = "sip_media_factory_request"
#9  0x00007f4b58c32152 in tp_intset_to_array ()
   from /usr/lib/libtelepathy-glib.so.0
#10 0x0000000000000001 in ?? ()
#11 0x00007fff6202d1e8 in ?? ()
#12 0x00007fff6202d1e0 in ?? ()
#13 0x0000000100000001 in ?? ()
#14 0x00000000006370c0 in ?? ()
#15 0x0000000000000005 in ?? ()
#16 0x000000000063d230 in ?? ()
#17 0x0000000000000000 in ?? ()