A PRI gateway can enhance call quality by giving a dedicated, high-bandwidth digital connection between your phone system and PSTN. It provides a number of lines so that call can be done at a time thus avoiding traffic and call drops. PRI gateways also introduce more efficient and higher quality voice compression and enhanced signal quality compared to analog systems, resulting in more stable calls. Furthermore, PRI line has high levels of reliability to ensure that the business entity gets the best out of its communication, especially voice.