1. Technical requirements: Telecom maintenance requires certain technical knowledge and skills, including knowledge and operation ability of networks, communication equipment and systems. For inexperienced or untrained people, it takes some time and effort to master these skills.

2. Working environment: Telecom maintenance needs to be carried out outdoors or in high places, and it needs to climb towers, cross obstacles or work in bad weather conditions. These factors increase the physical and psychological pressure of work and require employees to have the ability to adapt to these environments.

3. Time pressure: Telecom maintenance needs to be carried out in an emergency, such as network failure or communication interruption. In these cases, maintenance personnel need to respond and solve problems quickly, work overtime or are under great pressure.

4. Technical update: The technology and equipment in the telecommunications industry are constantly updated and evolving, and maintenance personnel need to constantly learn new technologies and adapt to new equipment. This requires maintaining employees' learning ability and continuous attention to new technologies.