Well, there are several telecom equipment manufacturers out there, so it really depends on which one you're specifically asking about. However, I can give you some information about some of the major players in the industry:

1. Nokia: This Finnish company is one of the biggest manufacturers of telecom equipment in the world. They specialize in mobile networks, broadband solutions, and IP and optical networks.
2. Ericsson: This Swedish company is another major player in the telecom equipment market. They offer a wide range of products and services, including radio access, core networks, and digital services.
3. Huawei: This Chinese company has been making waves in the industry in recent years, but they've also been the subject of controversy due to concerns about their ties to the Chinese government. They specialize in mobile networks, fixed networks, and cloud computing.
4. Cisco: While not strictly a telecom equipment manufacturer, Cisco is a major provider of networking solutions for businesses and service providers. Their offerings include routers, switches, and other networking equipment.

Of course, there are many other companies out there that manufacture telecom equipment, and each has their own strengths and weaknesses. Ultimately, it's up to each individual telecom operator to choose the equipment that best fits their needs and budget.