Hello, as far as I know, telecommunications outsourcing companies can provide services such as customer support and technical support and data processing services. I can advise you on BPO Nextdoor
https://bponextdoor.com/it-telecommunications-industry/ she has extensive experience in implementing various telecommunications and IT projects. I have heard that there are qualified specialists who are happy to take on any tasks, regardless of their level of complexity and scope of work. A lot of people have recommended this company to me.