John_Loader@christineburns @Natasha_Jay As an apprentice in PO Telephones in the 60s I learned this was normally caused by people picking up the handset with one hand and putting it down with the other. On complaints after a few promotions I taled a few people how to remove the kink using a pencil
GNU social JP is a social network, courtesy of GNU social JP管理人. It runs on GNU social, version 2.0.2-dev, available under the GNU Affero General Public License.
All GNU social JP content and data are available under the Creative Commons Attribution 3.0 license.