If you have a home internet package with Swisscom which is linked to your cellphone (which should already give you a monthly CHF 20 discount on your cellphone bill), you can save another CHF 20/month by signing up for "Simply Digital".
"Simply Digital" means that if you have an issue, you have to register it first using the App online rather than calling the hotline. You can do this in English.
You save CHF 10/month on each contract that you register it with. So, 10 for the home internet and another 10 for the cellphone contract.
I will need to subscribe for two smartphones and internet on october.
Internet + Simply Digital give you 30chf of discount on the mobile, don ́t know yet if the discount if for two mobiles. With the internet total value goes to CHF 169,70. Cheaper than Sunrise that I was looking - CHF 217 for internet and two phones).
If there is anyone who has two (or more) Swisscom TV and Internet subscriptions, for example in a holiday home, it's now possible to simply use the Blue TV App with multi room function for one of those subscriptions. Obviously the TV would need to be a smart TV.
Another tip: make sure you get all the equipment thrown in free when you first sign up. They will do that. If you add equipment later they will charge you. (Invaluable advice from a Swisscom agent)
I just looked it up and it appears that they are no longer offering it since June 1st. They are honouring exiting subscriptions, but are not allowing any new ones.