That will require some testing, difficult to do from 920 miles away. On my cellular phone, speed dialing requires holding down the speed dial number: nine-one-one risks a big fine if there is no real emergency, speed dialing demands niiiiiiine (-one-one or anything else.) I am hoping that an Obihai Technologies gadget, or similar, will work in the absence of the VoIP hookup. The current alternatives call for disabling outgoing calls, bad, or hospice staff unplugging Mom's phone each night before they depart, potentially worse. I am still hoping for a diversion gadget.