"电话叫醒服务" can be translated into English as "wake-up call service" or simply "wake-up call".
"Wake-up call service" emphasizes that it is a service provided by a hotel or other establishment.
"Wake-up call" is a more common and concise expression used in daily communication, referring to the act of being awakened by a phone call at a specified time.
For example:
Could you arrange a wake-up call service for me at 6 a.m. tomorrow? (明天早上6点能为我安排电话叫醒服务吗?)
I'd like a wake-up call at 7 o'clock. (我想要一个7点的叫醒电话。)