My mom is 78 y. After an eventful move from UPC to Sunrise, her landline phone (032 435 55 78) can only be called from specific phone numbers. For instance, all incoming (and outgoing) Swisscom / Salt calls are being rejected. Other numbers will go through.
It is absolutely incomprehensible and I am worried to let my (widowed) mom alone with such limited connectivity. Reaching health services doesn’t work for instance.
She already spent hours with the hotline. We tested different phones, rebooted everything many times. It seems to be a serious high-level routing issue among operators.
Please help !