Your office user telephone extensions are connected to the Public Switched Telephone Network or Service Provider lines by a PABX / IP Telephone System. Furthermore, it enables internal company communication and lets users to share a limited number of telephone trunk lines. There are various advantages to using an IP telephone system for your organization. IVR, Voice Mail, Call Recording, Voice Mail to Email, Mobility Users, Call Queue, Conference Call Bridge, Telephone CRM Integration, and Remote Office Connectivity are some of the common features.