Dialog, Suntel, SLT Godak velavata PABX Direct karanne na Ban, Third party companies valata Tender Type 1ta hari vena method 1ta hari thami karanda denne.
Third party companies valath ganan vadi, But third party companies vala work karana samahara technicianla ennava Companyta horen Private karanava ungen nam aduvata karaganda puluvan.