Medical keytone service: the mobile phone has a shortcut key, and one key dials the medical keytone customer service telephone. Nearly 1000 medical institutions in 70 cities across the country provide the whole process tracking service from daily consultation to reimbursement for the elderly.
two
Strengthen the radio function. The hearing of the elderly is generally not as sensitive as that of young people. The radio voice is required to be adjustable and high definition.
three
Satellite communication function. After Beidou satellite system is operated, it can send short messages to the ground center through the satellite. There are still signals in some places with bad signals.
four
Add TTS function, that is, voice to text voice function. Old people have poor eyesight. They can check SMS and incoming calls.