After many hours of updating config files, I have finally retired my old #asterisk server, which has been doing sterling service since 2015. Asterisk is now running on #ubuntu rather than #centos and my BT landline number is about to transfer to @aaisp so I no longer need to cater for analogue lines or deal with #wanpipe and #dahdi! Converting everything from #sip to #pjsip was a major undertaking.