This is the heartwarming moment a loyal pet dog alerted a grandmother of incoming calls.

The attentive brown pooch barked at the pensioner to tell that her phone was ringing in Jiangsu, China on December 8.

CCTV footage shows the canine barking and running towards another room.

Moments later, the elderly woman, whose hearing has significantly declined with age, walked to the living room to answer the phone call.

Local media reported that since the passing of her husband, the small dog has become her sole companion, helping her to ensure she never misses important messages by alerting her.

Dogs are considered intelligent due to their remarkable ability to understand human social cues, body language, and verbal commands, allowing them to learn complex tasks and respond appropriately to different situations.