IP telephony for business: Asterisk PBX + SIP trunks Kyivstar, li

Implemented complete setup of IP telephony based on Asterisk PBX for business communications. The main task was to unite several mobile operators into one stable telephone system and configure convenient call routing.

As part of the work, the following was accomplished:

configuration of Asterisk on the server, connection of SIP trunks from Kyivstar, lifecell, and Vodafone, creation of internal users, setup of incoming and outgoing calls, routing between operators, verification of SIP registration, connection of softphones/IP phones, basic security configuration, RTP/SIP ports, and stable operation of telephony.

As a result, the business received a unified IP telephone system where all calls go through a centralized server, operators work within a single infrastructure, and telephony becomes more manageable, scalable, and professional.