i have some Panasonic Phones by the customer, connected with TLS/SRTP LetsEncrypt.
The phones reconnect when the internet connection was lost but if i reboot the PBX or restart Asterisk then the phones do not reconnect anymore.
Sometimes they reconnect after a few hours but most times they dont reconnect forever. Also not after a day.
The customer has to reboot the basestation then they work.
What can be the reason for this?
We also installed some Yealink T48G and Cisco SPA112, they work perfect without any errors and reconnect within minutes.
Maybe someone also had this problems.