Yes. Each department of the hospital has landline phones, but some of these phones are provided by China Unicom, some are China Mobile, and some are China Telecom. However, no matter which communications company the landline phone is from, there is a caller ID. A hospital refers to a medical institution that provides patients with necessary medical examinations, treatment measures, nursing technology, consultation services, rehabilitation equipment, treatment and transportation and other services in accordance with laws, regulations and industry standards, with the main purpose of saving lives and healing the wounded.