/usr/share/telepathy/profiles/kde-talk.profile is in kde-config-telepathy-accounts 4:15.12.3-0ubuntu1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 | <service xmlns="http://telepathy.freedesktop.org/wiki/service-profile-v1"
id="kde-talk"
type="IM"
provider="kde-talk"
manager="gabble"
protocol="jabber"
icon="kde"> <!-- FIXME: Ask for proper icon once -->
<name>KDE Talk</name>
<parameters>
<parameter name="server" type="s" mandatory="1" />
<parameter name="port" type="u" mandatory="1">5222</parameter>
</parameters>
</service>
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