The business of TCIL is characterized by advanced technologies both in the field of Telecom and IT. Technology is advancing very fast and with a view to keep updated with the latest technology TCIL undertakes training activities either through its own resources or through external agencies. TCIL is having strategic tie-up to provide telecom and IT training with the following prestigious institutes of Govt. of India:

 Advanced Level Telecom Centre (ALTTC), Ghaziabad

Centre for Excellence in Telecom Technology and Management, Mumbai

Intelligent Communication Systems India Ltd.(ICSIL)

TCIL has also organized a number of training programmes catering to specific requirements of Telecom PTTs from various countries viz. Ethiopia, Nigeria, Kuwait, Maldives, Republic of Yemen.

In addition to the above, TCIL has established Training centres in 5 provinces of Afghanistan to meet the specific needs. In the process, more than 2000 Afghan official, students and teachers have been trained in last three years. TCIL has recently been empanelled by Ministry of External Affairs, Govt. of India for providing training facilities to 156 Indian Technical and Economic Cooperation (ITEC) Programme partner countries under ITEC/ SCAAP (SPECIAL COMMONWEALTH AFRICAN ASSISTANCE PLAN) training programme funded by Government of India.