Since June 2019 I have lot of troubles with Swisscom Services. Now I have problems with fixed line phone. Very often a caller reports that my phone is busy, although I get only one ringing tone. In addition, when anybody calls my fixed line telephone, it rings - when I want to accept the call, I do not hear any voice - caller reports the he was hearing me. When I want to call back, telephone rings - if caller answers I do still to hear any voice.
VERY INSATISFACTORY SERVICE FROM A SERVICE PROVIDER SUCH AS SWISSCOM !!!!! It seems Swisscom is at the loss of technical knowledge - probably best to with service provider !!!!!!