Tender for Relative maintenance services for the asterisk system with connection to microsyms and phone service for the daily activity of the biomedic research institute with technical support for a system with 200 extensions, microbisam integration, if basic trunk of + 5, channel, syphid, good fixed phone calls +, mobile phone calls and monthly phone calls included, with the conditions that are set up at the full of administrations and in the process of techniques.