For companies trying to update their communication infrastructure, integrating VoIP phone service with an IP PBX system is a smart choice.By doing this, businesses may take advantage of VoIP's scalability, cost effectiveness, and flexibility while still having the functionality and control of an IP PBX system. IP PBX systems are a crucial component of a contemporary communication infrastructure since they include sophisticated functions including voicemail, auto-attendant, conferencing, and call routing.