Install, configure, and validate the operation of a SIP Gateway, integrating the IP telephony system with the company's existing communication infrastructure, enabling voice calls between different networks (VoIP and PSTN) with quality, security, and reliability. More information via wats 419559\-6432\. Job type: Autonomous / PJ Contract duration: 1 month Payment: R$1\.518,00 \- R$3\.114,47 per month