Comment 2 for bug 290054

Thanks for your report.
Confirmed in Intrepid

# apt-cache policy ekiga ekiga-gtkonly
ekiga:
  Installed: 2.0.12-0ubuntu5
  Candidate: 2.0.12-0ubuntu5
  Version table:
 *** 2.0.12-0ubuntu5 0
        500 ftp://ftp.free.fr intrepid/main Packages
        100 /var/lib/dpkg/status
ekiga-gtkonly:
  Installed: (none)
  Candidate: 2.0.12-0ubuntu5
  Version table:
     2.0.12-0ubuntu5 0
        500 ftp://ftp.free.fr intrepid/universe Packages

:: TEST CASE ::
# aptitude install ekiga ekiga-gtkonly
Reading package lists... Done
Building dependency tree
Reading state information... Done
Reading extended state information
Initializing package states... Done
The following NEW packages will be installed:
  ekiga ekiga-gtkonly
0 packages upgraded, 2 newly installed, 0 to remove and 0 not upgraded.
Need to get 4568kB/5525kB of archives. After unpacking 25.3MB will be used.
Writing extended state information... Done
Get:1 ftp://ftp.free.fr intrepid/main ekiga 2.0.12-0ubuntu5 [4568kB]
Fetched 4568kB in 7s (573kB/s)
Selecting previously deselected package ekiga.
(Reading database ... 187461 files and directories currently installed.)
Unpacking ekiga (from .../ekiga_2.0.12-0ubuntu5_i386.deb) ...
Unpacking ekiga-gtkonly (from .../ekiga-gtkonly_2.0.12-0ubuntu5_i386.deb) ...
dpkg: error processing /var/cache/apt/archives/ekiga-gtkonly_2.0.12-0ubuntu5_i386.deb (--unpack):
 trying to overwrite `/usr/share/dbus-1/services/net.ekiga.instance.service', which is also in package ekiga
dpkg-deb: subprocess paste killed by signal (Broken pipe)
Processing triggers for man-db ...
Processing triggers for menu ...
Errors were encountered while processing:
 /var/cache/apt/archives/ekiga-gtkonly_2.0.12-0ubuntu5_i386.deb
E: Sub-process /usr/bin/dpkg returned an error code (1)